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www.BlackStarPT.com
All dimensions in inches.
ContentsBlackstar Sprockets
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3D35.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8T35.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1041.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1140.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14D40.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22T40.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2650.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29D50.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36T50.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4060.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44D60.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52T60.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5480.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57D80.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65T80.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70100.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72D100.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78T100.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80120.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82D120.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87140.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90D140.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94160.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95D160.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99180.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100200.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101200.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102D200.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104240.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10578/81X.Sprockets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106Double.Pitch.Sprockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
www.BlackStarPT.com 1
All dimensions in inches.
Blackstar sprockets are made with superior materials:
SAE 1045 SteelBlackStar uses SAE 1045 steel, which is more wear-resistant than our competitors’ 1020 and 1018 steel or powdered metal. SAE 1045 steel is also able to be hardened, unlike some other types of steel.
Black Oxide TreatmentBlack Oxiding on roller chain sprockets provides rust-resistance and provides an attractive finish.
Hardened TeethBlackStar offers induction-hardened teeth from the factory.
Forged ConstructionBlackStar offers many sizes in a one-piece forged construction, which provides superior strength and grain structure.
Fully Machined Mill Sprockets BlackStar’s fully machined mill sprockets are precise. Our competitors’ mill sprockets are flame cut with very loose tolerances on the tooth profile and from the root to the center of the bore. BlackStar machine bevels and induction hardens all mill sprocket teeth for smoother running and longer life.
BlackStar makes its mill sprockets from SAE 1045 steel.
Custom SprocketsBlackStar manufactures sprockets custom-made to your specifications.
Introduction Blackstar Sprockets
Superior Materials Make Superior Products2
All dimensions in inches.
Single-Type B Single-Type ANo.of
TeethCatalogNumber
Diameters Bore HubApprox.Weight(lbs.)
CatalogNumber
StockBore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
91011
121314
151617
181920
212223
242526
283032
353640
4548
546070
72
H25B9H25B10H25B11
H25B12H25B13H25B14
H25B15H25B16H25B17
H25B18H25B19H25B20
H25B21H25B22H25B23
H25B24H25B25H25B26
H25B28H25B3025B32
25B3525B3625B40
25B4525B48
25B5425B6025B70
25B72
0.840.921.00
1.081.171.25
1.331.411.49
1.571.651.73
1.811.891.97
2.052.132.22
2.372.532.69
3.013.36
3.733.97
4.444.925.72
5.88
0.7310.8090.887
0.9661.0451.124
1.2031.2821.361
1.4401.5191.598
1.6781.7571.836
1.9151.9952.074
2.2332.3922.551
2.8693.187
3.5843.823
4.3004.7775.572
5.732
1/4 1/4 1/4
1/4 1/4 1/4
1/4 1/4 1/4
1/4 1/4 1/4
1/4 1/4 1/4
3/8 3/8 3/8
3/8 3/8 3/8
3/8 1/2
1/2 1/2
1/2 1/2 1/2
1/2
1/4 1/4 5/16
3/8 7/16 9/16
9/16 9/16 5/8
3/4 13/16 7/8
7/8 15/16 1
1 1 1
1 1 1
1 1 3/8
1 3/8 1 3/8
1 3/8 1 3/8 1 3/8
1 3/8
7/16 1/2 9/16
5/8 23/32 13/16
57/64 31/321 1/32
1 1/8 1 7/321 9/32
1 3/8 1 7/161 1/2
1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2
1 1/2 2
2 2
2 2 2
2
1/2 1/2 1/2
1/2 1/2 1/2
1/2 1/2 1/2
1/2 1/2 5/8
5/8 5/8 5/8
5/8 5/8 5/8
5/8 5/8 5/8
3/4 3/4
3/4 3/4
3/4 3/4 3/4
3/4
0.030.030.04
0.060.070.08
0.100.120.14
0.160.190.25
0.280.310.32
0.330.340.35
0.360.380.40
0.500.53
0.560.56
1.001.101.25
1.30
H25A18H25A19H25A20
H25A21H25A22H25A23
H25A24H25A25H25A26
H25A28H25A3025A32
25A3525A3625A40
25A4225A4525A48
25A5425A60
25A72
1/4 1/4 1/4
3/8 3/8 3/8
3/8 3/8 3/8
3/8 3/8 3/8
3/8 3/8 1/2
1/2 1/2 1/2
1/2 1/2
1/2
0.040.040.04
0.040.060.06
0.080.080.09
0.100.120.14
0.160.180.20
0.240.250.32
0.380.54
0.74
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.Sprockets with “H” prefix have hardened teeth.
TYPE ATYPE B
OutsideDiameter
.110Nominal
HubDiameter
LengthThru Bore
.110Nominal
OutsideDiameter
25 Sprockets1/4” Pitch
www.BlackStarPT.com 3
All dimensions in inches.
35 Sprockets3/8” Pitch
Single-Type B Single-Type ANo.of
TeethCatalogNumber
Diameters Bore HubApprox.Weight(lbs.)
CatalogNumber
StockBore
Approx. Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
89
1011
12131415
16171819
20212223
24252627
28303235
36404245
485460
707280
8496
112
H35B8H35B9H35B10H35B11
H35B12H35B13H35B14H35B15
H35B16H35B17H35B18H35B19
H35B20H35B21H35B22H35B23
H35B24H35B25H35B26H35B27
H35B28H35B3035B3235B35
35B3635B4035B4235B45
35B4835B5435B60
35B7035B7235B80
35B8435B9635B112
1.131.261.381.50
1.631.751.871.99
2.112.232.352.47
2.592.712.832.95
3.073.193.313.43
3.553.794.034.39
4.514.995.235.59
5.956.667.38
8.588.819.77
10.2511.6813.59
0.9801.0971.2141.331
1.4491.5671.6851.804
1.9222.0412.1602.279
2.3972.5162.6352.754
2.8732.9923.111
3.230
3.3493.5883.8264.184
4.3034.7805.0185.376
5.7346.4497.165
8.3588.5978.597
10.02911.46113.371
3/8 3/8 3/8 3/8
1/2 1/2 1/2 1/2
1/2 1/2 1/2 1/2
1/2 1/2 1/2 1/2
1/2 1/2 1/2 1/2
1/2 1/2 1/2 5/8
5/8 5/8 5/8 5/8
5/8 5/8 3/4
3/4 3/4 3/4
3/4 3/4 3/4
3/8 3/8 9/16 9/16
9/16 11/16 7/8 7/8
15/161 1/161 3/161 1/4
1 5/161 3/8 1 3/8 1 3/8
1 3/8 1 3/8 1 3/8 1 3/8
1 3/8 1 3/8 1 3/8 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2
3/4 * 27/32 *31/32 *1 1/16 *
1 7/32 *1 1/4 *1 1/4 1 11/32
1 15/321 19/321 23/321 27/32
1 15/162 2 2
2 2 2 2
2 2 2 2 1/4
2 1/4 2 1/4 2 1/4 2 1/4
2 1/4 2 1/4 2 1/4
2 1/4 2 1/4 2 1/4 2 1/4 2 1/4 2 1/4
3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4
3/4 7/8 7/8 7/8
7/8 7/8 7/8 7/8
7/8 7/8 7/8 7/8
7/8 1 1 1
1 1 1 1 11 1 1 1
0.070.090.140.17
0.200.230.250.29
0.350.420.480.54
0.590.800.800.82
0.880.880.900.94
0.941.021.241.50
1.561.621.681.78
1.882.202.48
3.123.423.82
4.245.166.70
H35A15
H35A16H35A17H35A18H35A19
H35A20H35A21H35A22H35A23
H35A24H35A25H35A26H35A27
H35A28H35A3035A3235A35
35A3635A4035A4235A45
35A4835A5435A60
35A7035A7235A80
35A8435A9635A112
1/2
1/2 1/2 1/2 1/2
1/2 1/2 1/2 1/2
1/2 1/2 1/2 1/2
1/2 1/2 5/8 5/8
5/8 19/32 19/32 19/32
19/32 19/32 23/32
23/32 23/32 23/32
23/32 23/32 23/32
0.10
0.120.120.140.16
0.200.200.220.24
0.260.280.280.34
0.340.460.460.60
0.620.700.780.88
1.211.321.66
2.302.563.16
3.264.645.05
*Has a recessed groove in the hub for chain clearance.Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat. Sprockets with “H” prefix have hardened teeth.
HubDiameter
OutsideDiameter
LengthThru Bore
.168Nominal
TYPE B
TYPE A
OutsideDiameter
.168Nominal
Superior Materials Make Superior Products4
All dimensions in inches.
OutsideDiameter
LengthThru Bore
.168Nominal
35 Sprockets3/8” PitchSingle - Bored to Size — Keyway and 2 Setscrews
No.of Teeth Catalog Number
Diameters
Length Thru Bore
Approx.Weight(lbs.) Stock Finished Bore Includes Keyway and 2 Setscrews
Outside Diameter
PitchDiameter
910111213
1415161718
1920212223
2425262728
3032353640
4245485460
7072808496
112
H35BS9 H35BS10 H35BS11 H35BS12 H35BS13
H35BS14 H35BS15 H35BS16 H35BS17 H35BS18
H35BS19 H35BS20 H35BS21 H35BS22 H35BS23
H35BS24 H35BS25 H35BS26 H35BS27 H35BS28
H35BS30 35BS32 35BS35 35BS36 35BS40
35BS42 35BS45 35BS48 35BS54 35BS60
35BS70 35BS72 35BS80 35BS84 35BS96 35BS112
1.261.381.501.631.75
1.871.992.112.232.35
2.472.592.712.832.95
3.073.193.313.433.55
3.794.034.394.514.99
5.235.595.956.667.38
8.588.819.77
10.2511.6813.59
1.0971.2141.3311.4491.567
1.6851.8041.9222.0412.160
2.2792.3972.5162.6352.754
2.8732.9923.111
3.2303.349
3.5883.8264.1844.3034.780
5.0185.3765.7346.4497.165
8.3588.5978.597
10.02911.46113.371
3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8 1 1 1
1 1 1 1 1
1 1 1 1 1 1
0.100.110.150.180.20
0.220.240.290.360.39
0.440.510.750.780.78
0.790.800.840.880.90
0.961.141.381.411.56
1.641.741.861.982.34
3.143.303.944.265.226.50
*3/8*3/8*3/8
*1/2 *1/2 *1/2 *1/2
*1/2 *1/2 *1/2 *1/2 *1/2
*1/2 *1/2 *1/2 *1/2 *1/2
*1/2 *1/2
† 5/8 † 5/8 5/8 5/8
5/8 5/8 5/8 5/8 5/8
5/8 5/8 5/8 5/8 5/8
5/8 5/8 5/8 5/8 5/8
5/8 5/8 5/8 5/8 5/8
5/8 5/8 5/8 5/8
† 3/4 † 3/4 3/4
3/4 3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4 3/4 3/4
7/8 7/8 7/8 7/8
7/8 7/8 7/8
7/8 7/8 7/8 7/8 7/8
7/8 7/8 7/8 7/8 7/8
7/8 7/8 7/8 7/8 7/8 7/8
1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1 1
1 1/8 1 1/8 1 1/8
1 1/8 1 1/8 1 1/8 1 1/8 1 1/8
1 1/8 1 1/8 1 1/8 1 1/8 1 1/8
1 1/8 1 1/8 1 1/8 1 1/8 1 1/8 1 1/8
1 3/16 1 3/16 1 3/16
1 3/16 1 3/16 1 3/16 1 3/16 1 3/16
1 3/16 1 3/16 1 3/16 1 3/16 1 3/16
1 3/16 1 3/16 1 3/16 1 3/16 1 3/16 1 3/16
1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
*Indicates no keyway and (2) 1/4” setscrews only. NOTE: KEYWAY IS ON CENTER LINE OF TOOTH.
† Keyway with only one setscrew at 90 degrees.Hub diameters may vary to suit different bore sizes. Sprockets with “H” prefix have hardened teeth.
www.BlackStarPT.com 5
All dimensions in inches.
35 Sprockets3/8” Pitch
Single - Split Taper Style No.of
Teeth Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
Bushing Only
Sprocket Only
19 20 21 22
23 24 25 26
28 30 32 35
36 40 42 45
48 54 60 70
72 80 84 96
112
H35H19 H35H20 H35H21 H35H22 H35H23 H35H24 H35H25 H35H26 H35H28 H35H30 35H32 35H35 35H36 35H40 35H42 35H45 35H48 35H54 35H60 35H70 35H72 35H80 35H84 35H96 35H112
H H H H H H H H H H H H H H H H H H H H H H H H H
2.47 2.59 2.71 2.83
2.95 3.07 3.19 3.31
3.55 3.79 4.03 4.39
4.51
4.99 5.23 5.59
5.95 6.66 7.38 8.50
8.81 9.77
10.25 11.68
13.59
2.278 2.397 2.516 2.635
2.754
2.873 2.992 3.111
3.349 3.588 3.826 4.183
4.303 4.780 5.018
5.376
5.734 6.449 7.165 8.358
8.597 9.552
10.029 11.461 13.371
3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16
2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
1 5/32 1 5/32 1 5/32 1 5/32
1 5/32 1 5/32 1 5/32 1 5/32
1 5/32 1 5/32 1 5/32 1 5/32
1 5/32 1 5/32 1 5/32 1 5/32
1 5/32 1 5/32 1 5/32 1 5/32
1 5/32 1 5/32 1 5/32 1 5/32 1 5/32
0.8 0.8 0.8 0.8
0.8 0.8 0.8 0.8
0.8 0.8 0.8 0.8
0.8 0.8 0.8 0.8
0.8 0.8 0.8 0.8
0.8 0.8 0.8 0.8 0.8
0.5 0.5 0.6 0.7
0.7 0.8 0.8 0.8
0.9 0.9 0.9 1.0
1.0
1.2 1.2 1.4
1.5 1.8 2.3 2.8
3.0 3.8 4.0 5.3 6.8
Sprockets with “H” prefix have hardened teeth.
0.575Nominal
O.L.
H
P
C L
OutsideDiameter
TYPE 3
Superior Materials Make Superior Products6
All dimensions in inches.
35 Sprockets3/8” PitchSingle - QD Style
No.of
Teeth
Catalog Number
Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L1
L2
C
Y
G
X
Bushing Only
Sprocket Only
19 20 21 22 23
24 25 26 27 28
30 32 35 36 40
42 45 48 54 60
70 72 80 84 96
112
H35JA19 H35JA20 H35JA21 H35JA22 H35JA23 H35JA24 H35JA25 H35JA26 H35JA27 H35JA28 H35JA30 35JA32 35JA35 35SH36 35SH40
35SH42 35SH45 35SH48 35SH54 35SH60
35SH70 35SH72 35SH80 35SH84 35SH96 35SH112
JA JA JA JA JA
JA JA JA JA JA
JA JA JA SH SH
SH SH SH SH SH
SH SH SH SH SH SH
2.47 2.59 2.71 2.83 2.95
3.07 3.19 3.31 3.43 3.55
3.79 4.00 4.39 4.51 4.99
5.23 5.59 5.95 6.66 7.38
8.58 8.81 9.77
10.25 11.68 13.59
2.278 2.397 2.516 2.635 2.754
3.873 2.992 3.111
3.230 3.349
3.588 3.826 4.183 4.303 4.780
5.018 5.376 5.734 6.449 7.165
8.358 8.597 9.552 10.029 11.461 13.371
B B B B B
B B B B B B B B B B
B B B B B
B B B B B B
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
2 1⁄16 2 1⁄16 2 1⁄16 2 1⁄16 2 1⁄16 2 1⁄16 2 1⁄16 2 1⁄16 2 1⁄16 2 1⁄16 2 1⁄16 2 1⁄16 2 1⁄16 2 11⁄16 2 11⁄16 2 11⁄16 2 11⁄16 2 11⁄16 2 11⁄16 2 11⁄16 2 11⁄16 2 11⁄16 2 11⁄16 2 11⁄16 2 11⁄16 2 11⁄16
53⁄64 53⁄64 53⁄64 53⁄64 53⁄64
53⁄64 53⁄64 53⁄64 53⁄64 53⁄64
53⁄64 53⁄64 53⁄64 1 5⁄64 1 5⁄64
1 5⁄64 1 5⁄64 1 5⁄64 1 5⁄64 1 5⁄64
1 5⁄64 1 5⁄64 1 5⁄64 1 5⁄64 1 5⁄64 1 5⁄64
29⁄64 29⁄64 29⁄64 29⁄64 29⁄64 29⁄64 29⁄64 29⁄64 29⁄64 29⁄64 29⁄64 29⁄64 29⁄64 41⁄64 41⁄64 41⁄64 41⁄64 41⁄64 41⁄64 41⁄64 41⁄64 41⁄64 41⁄64 41⁄64 41⁄64 41⁄64
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 13⁄16 13⁄16
13⁄16 13⁄16 13⁄16 13⁄16 13⁄16 13⁄16 13⁄16 13⁄16 13⁄16 13⁄16 13⁄16
0.80.80.80.80.8
0.80.80.80.80.8
0.80.80.8 1.01.0
1.01.01.01.01.0
1.01.01.01.01.01.0
0.3 0.3 0.3 0.4 0.4
0.4 0.4 0.5 0.5 0.5
0.6 0.8 1.0 1.1 1.1
1.3 1.4 1.6 1.9 2.3
2.9 3.1 3.7 4.0 5.4 6.6
Sprockets with “H” prefix have hardened teeth.
OutsideDiameter
L1
Y
G
C
XL2
0.575Nominal
TYPE B
www.BlackStarPT.com 7
All dimensions in inches.
TYPE B
35 Sprockets3/8” Pitch
Single - TL Style No.of
Teeth Catalog Number
Bushing
Diameters
Type
Maximum Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L
C
Bushing Only
Sprocket Only
18 19 20 21
22 23 24 25
26 28 30 32
35 36 40 42
45 48 54 60
70 72 80 84
96 112
H35BTL18 H35BTL19 H35BTL20 H35BTL21 H35BTL22 H35BTL23 H35BTL24 H35BTL25
H35BTL26 H35BTL28 H35BTL30 35BTL32
35BTL35 35BTL36 35BTL40 35BTL42
35BTL45 35BTL48 35BTL54 35BTL60
35BTL70 35BTL72 35BTL80 35BTL84
35BTL96 35BTL112
1008 1008 1008 1008
1210 1210 1210 1210
1610 1610 1610 1610
1610 1610 1610 1610
1610 1610 1610 1610
1610 1610 1610 1610
1610 1610
2.35 2.47 2.59 2.71
2.83 2.95 3.07 3.19
3.31 3.55 3.79 4.03
4.39 4.51 4.99 5.23
5.59 5.95 6.66 7.38
8.58 8.81 9.77
10.25
11.68 13.59
2.159 2.278 2.397 2.516
2.635 2.754 2.873 2.992
3.111 3.349 3.588 3.826
4.183 4.303 4.786 5.018
5.376 5.734 6.449 7.165
8.358 8.597 9.552
10.029
11.461 13.371
B B B B B B B B B B B B B B B B B B B B B B B B B B
1 1 1 1 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
7⁄8 7⁄8 7⁄8 7⁄8 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 7⁄8 * 1 13⁄16 1 15⁄16 2 1⁄16 2 3⁄8 * 2 7⁄16 2 7⁄16 2 7⁄16 2 7⁄8 * 2 7⁄8 3 1⁄8 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4
0.30.30.30.3
0.60.60.60.6
0.90.90.90.9
0.90.90.90.9
0.90.90.90.9
0.90.90.90.9
0.90.9
0.4 0.5 0.6 0.7
0.8 0.9 0.9 1.2
1.1 1.2 1.2 1.3
1.4 1.4 1.9 2.0
2.1 2.3 2.6 3.0
3.7 3.9 4.5 4.9
6.0 7.8
*Has a recessed groove in the hub for chain clearance.
Sprockets with “H” prefix have hardened teeth.
L
C
.168Nominal
OutsideDiameter
Superior Materials Make Superior Products8
All dimensions in inches.
D35 Sprockets3/8” Pitch
Double - TL Style
No.of
Teeth Catalog Number Bushing
Diameters
Maximum Bore
Dimensions
Type
Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter L C
BushingOnly
Sprocket Only
19 20 21 22 23 26 30 32 35 40 45 48 54 60 70 80 96 112
D35BTL19H D35BTL20H D35BTL21H D35BTL22H D35BTL24H D35BTL26 D35BTL30 D35BTL32 D35BTL35 D35BTL40 D35BTL45 D35BTL48 D35BTL54 D35BTL60 D35BTL70 D35BTL80
D35BTL96 D35BTL112
1008 1008 1008 1008
1210 1210 1610 1610
1610 1610 1610 1610
1610 1610 1610 1610
1610 1610
2.47 2.59 2.71 2.83
3.07 3.31 3.79 4.03
4.39 4.99 5.59 5.95
6.66 7.38 8.58 9.77
11.68 13.59
2.278 2.397 2.516 2.635
2.873 3.111
3.588 3.826
4.183 4.780 5.376 5.734
6.449 7.165 8.358 9.552
11.461 13.371
1 1 1 1
1 1⁄4 1 1⁄4 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
7⁄8 7⁄8 7⁄8 7⁄8
1 1 1 1
1 1 1 1 1 1 1 1
1 1
1 53⁄64 1 15⁄16 2 1⁄16 2 3⁄16 2 7⁄16 2 5⁄8 3 1⁄8 3 1⁄4
3 1⁄4 3 1⁄4 3 1⁄4 3 5⁄8
3 5⁄8 3 5⁄8 3 5⁄8 3 5⁄8
3 5⁄8 3 5⁄8
B B B B
B B B B
B B B B B B B B B B
0.30.30.30.3
0.60.60.90.9
0.90.90.90.9
0.90.90.90.9
0.90.9
0.6 0.8 1.4 1.7
1.8 2.0 1.8 2.0
2.3 2.9 3.2 3.5
3.9 4.9 6.3 7.9
9.9 10.9
Sprockets with “H” suffix have hardened teeth.Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Double - QD Style
No.of
Teeth Catalog Number Bushing
Diameters
Type
Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter L1 L2 C Y P X
Bushing Only
Sprocket Only
68 72 76 84
95 96
102
D35SDS68 D35SDS72 D35SDS76 D35SK84 D35SK95 D35SK96 D35SK102
SDS SDS SDS SK SK SK SK
8.34 8.81 9.29
10.25
11.5611.6812.40
8.120 8.597 9.074
10.029
11.34211.46112.177
C C C C
C C C
2 2 2 2 5⁄8
2 5/8 2 5/8 2 5/8
1 1⁄2 1 1⁄2 1 1⁄2 2 1⁄8
2 1/8 2 1/8 2 1/8
1 1⁄2 1 1⁄2 1 1⁄2 2 1⁄8 2 1/8 2 1/8 2 1/8
3 3⁄16 3 3⁄16 3 3⁄16 3 7⁄8 3 7⁄8 3 7⁄8 3 7⁄8
9⁄16 9⁄16 9⁄16 5⁄8
5⁄8 5⁄8 5⁄8
3⁄16 3⁄16 3⁄16 11/16
11/16 11/16 11/16
3⁄4 3⁄4 3⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1.0 1.01.02.0
2.02.02.0
7.4 8.3 9.3
11.9
15.215.717.8
TYPE B
L
W
C OutsideDiameter
TYPE C
1L
2L
X
C
0.162Nominal
Y0.561
P
OutsideDiameter
www.BlackStarPT.com 9
All dimensions in inches.
D35 Sprockets3/8” Pitch
Double - Type B No.of
Teeth Catalog Number
Diameters Bore Hub Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
12 13 14 15 16
17 18 19 20
21 22 23 24
25 26 30 36
42 48 52 60
68 72 76 84
95 96
102
D35B12H D35B13H D35B14H D35B15H D35B16H
D35B17H D35B18H D35B19H D35B20H D35B21H D35B22H D35B23H D35B24H
D35B25H D35B26H D35B30H D35B36
D35B42 D35B48 D35B52 D35B60
D35B68 D35B72 D35B76 D35B84
D35B95 D35B96 D35B102
1.63 1.75 1.87 1.99 2.11
2.23 2.35 2.47 2.59
2.71 2.83 2.95 3.07
3.19 3.31 3.79 4.51
5.23 5.95 6.43 7.38
8.34 8.81 9.29
10.25
11.56 11.68 12.40
1.4491.5671.6851.8041.922
2.0412.159
2.278 2.397
2.512.635 2.754 2.873
2.992 3.1113.5884.303
5.0185.7346.2117.165
8.1208.5979.074
10.029
11.34211.46112.177
1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 1 1 1
9⁄16 11⁄16 7⁄8 15⁄16 15⁄16
1 1⁄16 1 3⁄16 1 5⁄16 1 5⁄16
1 3⁄8 1 7⁄16 1 1⁄2 1 1⁄2
1 1⁄2 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄8
2 3⁄8 2 3⁄8 2 3⁄8
63⁄64 1 7⁄64 1 1⁄4 1 13⁄32 1 15⁄32 1 19⁄32 1 23⁄32 1 7⁄8 1 15⁄16
2 1⁄16 2 3⁄16 2 1⁄4 2 1⁄4
2 1⁄4 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
3 1⁄2 3 1⁄2 3 1⁄2 3 1⁄2
3 1⁄2 3 1⁄2 3 1⁄2
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
.32 .36 .44 .56 .64
.74 .84 .96
1.08
1.24 1.42 1.54 1.62
1.66 1.98 2.34 3.00
3.80 4.66 5.40 6.84
10.01 11.04 11.94 14.98
17.42 18.14 19.92
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” suffix have hardened teeth.
HubDiameter
LengthThru Bore
OutsideDiameter
TYPE B
Superior Materials Make Superior Products10
All dimensions in inches.
T35 Sprockets3/8” PitchTriple - QD Style
No.of Teeth
Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter L1 L2 C Y P X
BushingOnly
SprocketOnly
68727684
9596
102
T35SK68 T35SK72T35SK76 T35SK84
T35SK95 T35SK96 T35SK102
SKSKSKSK
SKSKSK
8.348.819.29
10.20
11.5611.68 12.40
8.1208.5979.074
10.029
11.34211.46112.177
CCCC
CCC
2 5/82 5/82 5/82 5/8
2 5/82 5/82 5/8
2 1/82 1/82 1/82 1/8
2 1/82 1/82 1/8
2 1/82 1/82 1/82 1/8
2 1/82 1/82 1/8
3 7/83 7/83 7/83 7/8
3 7/83 7/83 7/8
5/8 5/8 5/8 5/8
5/8 5/8 5/8
19/6419/6419/6419/64
19/6419/6419/64
1 1/41 1/41 1/41 1/4
1 1/41 1/41 1/4
2.02.02.02.0
2.02.02.0
11.9013.5615.4218.92
24.7625.5829.18
Triple - Type B No. of
Teeth Catalog Number
Diameters Bore Hub Approx.Weight(lbs.)
Outside Diameter
Pitch Diameter Minimum
Maximum Diameter
Length Thru Bore
13 14 15 16
17 18 19 20
21 22 23 24
25 26 30 36
42 48 52 60
68 72 76 84
95 96
102
T35B13H T35B14H T35B15H T35B16H T35B17H T35B18H T35B19H T35B20H
T35B21H T35B22H T35B23H T35B24H T35B25H T35B26 T35B30 T35B36
T35B42 T35B48 T35B52 T35B60 T35B68 T35B72 T35B76 T35B84 T35B95 T35B96 T35B102
1.75 1.87 1.99 2.11
2.23 2.30 2.47 2.59
2.71 2.83 2.95 3.07
3.19 3.31 3.79 4.51
5.23 5.95 6.40 7.38
8.34 8.81 9.29
10.25
11.56 11.68 12.40
1.5671.6851.8041.922
2.0412.1602.2792.397
2.5162.6352.7542.873
2.9923.111
3.5884.303
5.0185.7346.2117.165
8.1208.5979.074
10.029
11.34211.46112.177
1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4
1 1 1
11⁄16 7⁄8 15⁄16 15⁄16
1 1⁄16 1 3⁄16 1 5⁄16 1 5⁄16 1 3⁄8 1 7⁄16 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄8
2 1⁄2 2 1⁄2 2 1⁄2
1 7⁄64 1 1⁄4 1 13⁄32 1 15⁄32 1 19⁄32 1 23⁄32 1 7⁄8 1 15⁄16
2 1⁄16 2 3⁄16 2 1⁄4 2 1⁄4
2 1⁄4 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
3 1⁄2 3 1⁄2 3 1⁄2 3 1⁄2
3 3⁄4 3 3⁄4 3 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 7⁄8
1 7⁄8 1 7⁄8 1 7⁄8 1 7⁄8
1 7⁄8 1 7⁄8 1 7⁄8 1 7⁄8
1 7⁄8 1 7⁄8 1 7⁄8 1 7⁄8
1 7⁄8 1 7⁄8 1 7⁄8 1 7⁄8
2 1⁄8 2 1⁄8 2 1⁄8
.50 .62 .78 .82
1.04
1.22 1.40 1.50
1.72
1.96 2.12 2.26
2.42 2.78 3.42 4.52
5.88 7.42 8.52
11.22
15.38 17.34 18.90 22.82
29.32
30.06 33.36
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” suffix have hardened teeth.
TYPE C
TYPE B
.162Nominal
Length Thru Bore
HubDiameter
.960
OutsideDiameter
0.960T
0.162Nominal
X
L2
C
P
L1
www.BlackStarPT.com 11
All dimensions in inches.
41 Sprockets1/2” Pitch
Single - Type B Single - Type A No.of
Teeth Catalog Number
Diameters Bore Hub Approx.Weight(lbs.)
Catalog Number
Stock Bore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum
Maximum Diameter
Length Thru Bore
6 7 8 9
10 11 12 13
14 15 16 17
18 19 20 21
22 23 24 25
26 27 28 30
32 35 36 40
42 45 48 54
60 70 72 80
84 96
112
H41B6 H41B7 H41B8 H41B9 H41B10H41B11 H41B12 H41B13 H41B14 H41B15 H41B16 H41B17 H41B18 H41B19 H41B20 H41B21 H41B22 H41B23 H41B24 H41B25 H41B26 H41B27 H41B28 H41B30 41B32 41B35 41B36 41B40 41B42 41B45 41B48 41B54 41B60 41B70 41B72 41B80 41B84 41B96 41B112
1.17 1.34 1.51 1.67
1.84
2.00 2.17 2.33
2.49 2.65 2.81 2.97
3.14
3.30 3.46 3.62
3.78
3.94 4.10 4.26
4.42
4.58 4.74 5.06
5.38 5.86 6.02
6.650
6.97 7.45 7.93 8.88
9.84
11.43 11.75 13.03
13.66 15.57 18.12
1.0001.1521.3071.462
1.6181.7751.9322.089
2.2472.4052.5632.721
2.8793.0383.1963.355
3.5133.6723.8313.989
4.1484.3074.4654.783
5.1015.5785.7376.373
6.6917.1687.6458.599
9.55411.14511.46312.736
13.37215.28216.236
3⁄8 3⁄8 1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 1 1
3⁄8 3⁄8 1⁄2 5⁄8 3⁄4 7⁄8 15⁄16 1 1 1⁄4 1 5⁄16 1 3⁄8 1 1⁄2 1 5⁄8 1 3⁄4 1 7⁄8 1 7⁄8 2 2 1⁄4 2 1⁄4 2 1⁄4 2 1⁄4 2 1⁄4 2 1⁄4 2 1⁄4 2 1⁄4 2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4
21⁄32 * 3⁄4 * 63⁄64 * 1 1⁄8 * 1 1⁄4 * 1 7⁄16 * 1 9⁄16 * 1 9⁄16
1 3⁄4 1 29⁄32 2 1⁄16 2 15⁄64 2 3⁄8 2 15⁄32 2 3⁄4 2 7⁄8 3 3 3⁄16 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4
3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄2 3 1⁄2 3 1⁄2 3 1⁄2
3 1⁄2 4 4 4 4 4 4
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8 7⁄8 7⁄8 7⁄8 7⁄8 7⁄8 7⁄8 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1⁄16 1 1⁄16 1 1⁄16 1 1⁄16 1 1⁄16 1 1⁄16 1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
.07 .10 .19 .20
.27 .35 .44 .50
.57 .72 .91
1.09
1.25 1.49 1.64 1.81
1.93 2.25 2.33 2.46
2.50 2.56 2.64 2.80
2.96 3.12 3.32 4.06
4.10 4.18 4.92 5.68
6.78 9.54 9.64
11.54
12.20 14.86 19.16
H41A15 H41A16 H41A17 H41A18 H41A19 H41A20 H41A21 H41A22 H41A23 H41A24 H41A25 H41A26 H41A27 H41A28 H41A30 41A32 41A35 41A36 41A40 41A42 41A45 41A48 41A54 41A60 41A70 41A72 41A80 41A84 41A96 41A112
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 5⁄8 19⁄32 19⁄32 19⁄32 19⁄32 23⁄32 23⁄32 23⁄32 23⁄32 23⁄32 23⁄32 23⁄32 23⁄32 23⁄32 23⁄32 15⁄16 15⁄16
.28 .34 .36
.44 .46 .52 .60
.66 .72 .82 .88
.94 1.00 1.08 1.20
1.44 1.70 1.84 2.22
2.50 2.52 2.92 3.54
4.60
6.22 6.32 8.46
9.12
11.84 15.84
* Has a recessed groove in the hub for chain clearance.Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.Sprockets with “H” prefix have hardened teeth.
OutsideDiameter
.227Nominal
TYPE A
HubDiameter
LengthThru Bore
.227Nominal
OutsideDiameter
TYPE B
Superior Materials Make Superior Products12
All dimensions in inches.
41 Sprockets1/2” PitchSingle - Bored to Size — Keyway and 2 Setscrews
No. of
Teeth Catalog Number
Outside Diameter
Pitch Diameter
LengthThru Bore
Approx. Weight (lbs.) Stock Finished Bore Includes Keyway and 2 Setscrews
9 10 11 12 13
14 15 16 17 18
19 20 21 22 23
24 25 26 27 28
30 32 35 36 40
42 45 48 54 60
70 72 80 84 96
112
H41BS9 H41BS10 H41BS11 H41BS12 H41BS13
H41BS14 H41BS15 H41BS16 H41BS17 H41BS18
H41BS19 H41BS20 H41BS21 H41BS22 H41BS23
H41BS24 H41BS25 H41BS26 H41BS27 H41BS28
H41BS30 41BS32 41BS35 41BS36 41BS40
41BS42 41BS45 41BS48 41BS54 41BS60
41BS70 41BS72 41BS80 41BS84 41BS96 41BS112
1.67 1.84 2.00 2.17 2.33
2.49 2.65 2.81 2.973.14
3.30 3.46 3.62 3.78 3.94
4.10 4.26 4.42 4.58 4.74
5.06 5.38 5.86 6.02 6.65
6.97 7.45 7.93 8.88 9.84
11.43 11.75 13.03 13.66 15.57 18.12
1.4621.6181.7751.9322.089
2.2472.4052.5632.7212.879
3.0383.1963.3553.5133.672
3.8313.9894.1484.3074.465
4.7835.1015.5785.7376.373
6.6917.1687.6458.5999.554
11.145 11.46312.73613.37215.28216.236
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1 1⁄16 1 1⁄16 1 1⁄16 1 1⁄161 1⁄16 1 1⁄16
1 3⁄16 1 3⁄16 1 3⁄161 3⁄16 1 3⁄16 1 3⁄16
.20
.25
.32
.36
.43
.48
.59
.72 1.00 1.10
1.21 1.39 1.77 1.92 2.18
2.24 2.42 2.46 2.52 2.60
2.76 2.92 3.08 3.28 3.82
3.68 3.94 4.68 5.44 6.54
9.28 9.38
11.28 11.94 14.51 18.81
1⁄2 * 1⁄2 * 1⁄2 * 1⁄2 * 1⁄2 *
1⁄2 * 1⁄2 *
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4
7⁄8 7⁄8
7⁄8
1
11111
11111
11111
11111
11111
111111
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 3⁄16
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 3⁄8
1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8
1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8
1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
*Indicates no keyway and (2) 1/4” setscrews only. Hub diameters may vary to suit different bore sizes.
Sprockets with “H” prefix have hardened teeth.
NOTE: KEYWAY IS ON CENTER LINE OF TOOTH.
LengthThru Bore
.227Nominal
OutsideDiameter
www.BlackStarPT.com 13
All dimensions in inches.
Single - TL Style
No.of
Teeth
Catalog Number
Bushing
Diameters
Type Maximum
Bore
Dimensions Approx Weight (lbs.)
Outside Diameter
Pitch Diameter
L
C
BushingOnly
Sprocket Only
14 15 16 17 18 19 20 21 22 23 24 25 26 28 30 32 35 36 40 45 48 54 60 70 72 80 96
H41BTL14 H41BTL15 H41BTL16 H41BTL17 H41BTL18 H41BTL19 H41BTL20 H41BTL21 H41BTL22 H41BTL23 H41BTL24 H41BTL25 H41BTL26 H41BTL28 H41BTL30 41BTL32 41BTL35 41BTL36 41BTL40 41BTL45 41BTL48 41BTL54 41BTL60 41BTL70 41BTL72 41BTL80 41BTL96
1008 1008 1008 1210
1210 1210 1610 1610
1610 1610 1610 1610
1610 1610 1610 1610
1610 1610 1610 1610
1610 1610 1610 1610
1610 1610 1610
2.49 2.65 2.81 2.97
3.14 3.30 3.46 3.62
3.78 3.94 4.10 4.26
4.42 4.74 5.06 5.38
5.86 6.02 6.65 7.45
7.93 8.88 9.84
11.43
11.75 3.03
15.57
2.247 2.405 2.503 2.721
2.879
3.038 3.196 3.355
3.513
3.672 3.831 3.989
4.148
4.466 4.783 5.101
5.578 5.737 6.373 7.168
7.645
8.599 9.554 11.145
11.463
12.736 15.282
BBBB
BBBB
BBBB
BBBB
BBBB
BBBB
BBB
1 1 1 1 1⁄4
1 1⁄4 1 1⁄4 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
7⁄8 7⁄8 7⁄8 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 7⁄8 1 7⁄8 2 2 3⁄8
2 3⁄8 2 1⁄2 2 7⁄8 3
3 3 3 3
3 3 3 3
3 3 3 3
3 3 3 3
3 3 3
0.30.30.30.6
0.60.60.90.9
0.90.90.90.9
0.90.90.90.9
0.90.90.90.9
0.90.90.90.9
0.90.90.9
0.4 0.5 0.6 0.7
0.9 1.1 1.1 1.2
1.3 1.4 1.4 1.5
1.5 1.7 1.8 1.9
2.3 2.4 2.7 3.5
4.1
4.9 5.7 7.4
8.2 9.6
13.1
Sprockets with “H” prefix have hardened teeth.
41 Sprockets1/2” Pitch
Single - QD Style
No.of
Teeth
Catalog Number
Bush-
ing
Diameters
Type
Maximum Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter L1 L2 C Y G X
BushingOnly
SprocketOnly
15 16 17 18 19 20
21 22 23 24 25 26
27 28 30 32 35 36
40 42 45 48 54 60
70 72 80 84 96
112
H41JA15H41JA16 H41JA17 H41JA18 H41JA19 H41SH20 H41SH21 H41SH22 H41SH23 H41SH24 H41SH25 H41SH26 H41SH27 H41SH28 H41SH30 41SH32 41SH35 41SDS36 41SDS40 41SDS42 41SDS45 41SDS48 41SDS54 41SDS60 41SK7041SK72 41SK80 41SK84 41SK96 41SK112
JA JA JA JA JA SH SH SH SH SH SH SH
SH SH SH SH SH SDS SDS SDS SDS SDS SDS SDS
SK SK SK SK SK SK
2.652.81
2.98 3.14 3.30 3.46
3.62 3.78 3.94 4.10 4.26 4.42
4.58 4.74 5.06 5.38 5.86 6.02
6.65 6.97 7.45 7.93 8.89 9.84
11.43 11.75 13.03 13.66 15.57 18.12
2.4052.563 2.721 2.879 3.038 3.196
3.355 3.513 3.672 3.831 3.989 4.148
4.307 4.466 4.783 5.101 5.578 5.737
6.373 6.691 7.168 7.645 8.599 9.554
11.145 11.463 12.736 13.372 15.281 17.828
BBBBBB
BBBBBB
BBBBBB
BBBBBB
BBBBBB
1 1/4 1 1/41 1/41 1/41 1/4 1 5/8 1 5/8 1 5/8 1 5/8 1 5/8 1 5/8 1 5/8
1 5/8 1 5/8 1 5/8 1 5/8 1 5/8 2 22222 2 2 5/8 2 5/8 2 5/8 2 5/8 2 5/8 2 5/8
1 1/8 1 1/81 1/81 1/81 1/81 7/16 1 7/161 7/161 7/161 7/161 7/161 7/16
1 7/161 7/161 7/161 7/161 7/161 1/2 1 1/2 1 1/21 1/21 1/21 1/21 1/2 2 1/8 2 1/8 2 1/8 2 1/8 2 1/8 2 1/8
1 1/8 1 1/81 1/81 1/81 1/81 7/16 1 7/161 7/161 7/161 7/161 7/161 7/16
1 7/161 7/161 7/161 7/161 7/161 1/2 1 1/2 1 1/21 1/21 1/21 1/21 1/2 2 1/8 2 1/8 2 1/8 2 1/8 2 1/8 2 1/8
2 1/16 2 1/162 1/162 1/162 1/16 2 11/16 2 11/162 11/162 11/162 11/162 11/162 11/16
2 11/162 11/162 11/162 11/162 11/163 3/16 3 3/16 3 3/16 3 3/16 3 3/16 3 3/16 3 3/16
3 7/8 3 7/8 3 7/8 3 7/8 3 7/8 3 7/8
4 9/64 4 9/64 4 9/64 4 9/64 4 9/64 1 1/32 1 1/321 1/321 1/321 1/321 1/321 1/32
1 1/321 1/321 1/321 1/321 1/321 3/32 1 3/321 3/321 3/321 3/321 3/321 3/32
1 41/64 1 41/641 41/641 41/641 41/641 41/64
25/6425/6425/6425/6425/6437/64 37/6437/6437/6437/6437/6437/64
37/6437/6437/6437/6437/6417/32 17/3217/3217/3217/3217/3217/32
1 1/32 1 1/32 1 1/32 1 1/32 1 1/32 1 1/32
5/8 5/85/85/85/813/16 13/1613/1613/1613/1613/1613/16
13/1613/1613/1613/1613/163/4 3/43/43/43/43/43/4 1 1/4 1 1/41 1/41 1/41 1/41 1/4
0.90.90.90.90.91.0
1.01.01.01.01.01.0
1.01.01.01.01.01.0
1.01.01.01.01.01.0
2.02.02.02.02.02.0
0.3 0.40.50.60.7 0.8
0.81.11.11.21.21.3
1.41.51.61.72.51.9
2.32.42.83.44.0
5.5
7.4 8.09.6
10.412.817.3
TL - TYPE B
C
L
.227Nominal
OutsideDiameter
QD - TYPE B
OutsideDiameter
L1
Y
G
C
XL2
0.227Nominal
Superior Materials Make Superior Products14
All dimensions in inches.
40 Sprockets1/2” PitchSingle - Type B Single - Type ANo. of
TeethCatalogNumber
Diameters Bore HubApprox.Weight(lbs.)
CatalogNumber
StockBore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
LengthThru Bore
89
1011
12131415
16171819
20212223
24252627
28293031
32333435
36373839
40414243
44454647
48495051
52535455
56575859
60707280
8496
112
H40B8H40B9H40B10H40B11
H40B12H40B13H40B14H40B15
H40B16H40B17H40B18H40B19
H40B20H40B21H40B22H40B23
H40B24H40B25H40B26H40B27
H40B28H40B29H40B3040B31
40B3240B3340B3440B35
40B3640B3740B3840B39
40B4040B4140B4240B43
40B4440B4540B4640B47
40B4840B4940B5040B51
40B5240B5340B5440B55
40B5640B5740B5840B59
40B6040B7040B7240B80
40B8440B9640B112
1.501.671.842.00
2.172.332.492.65
2.812.983.143.30
3.463.623.783.94
4.104.264.424.58
4.744.905.065.22
5.385.545.705.86
6.026.186.336.49
6.656.816.977.13
7.297.457.617.77
7.938.098.258.41
8.578.738.899.04
9.209.369.529.68
9.8411.4311.7513.03
13.6615.5718.12
1.5071.4621.6181.775
1.9322.0892.2472.405
2.563 2.721
2.879 3.038
3.1963.3553.5133.672
3.8313.9894.1484.307
4.4654.8984.7835.217
5.3765.5365.6965.856
6.0156.1746.3346.494
6.6536.8126.9727.132
7.2917.4507.6097.769
7.9288.0888.2488.406
8.5668.7258.8849.044
9.2049.3629.5229.628
9.84011.43311.46312.736
13.37215.28217.827
1/2 1/2 1/2 1/2
1/2 1/2 1/2 1/2
5/8 5/8 5/8 5/8
5/8 5/8 5/8 5/8
5/8 5/8 5/8 5/8
5/8 5/8 5/8 5/8
5/8 5/8 5/8 5/8
5/8 5/8 5/8 5/8
3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4
3/4 1 1
1/2 9/16 3/4 7/8
1 1 1/161 1/8 1 1/4
1 3/8 1 7/161 1/2 1 3/4
1 7/8 1 7/8 1 7/8 2
2 1/4 2 1/4 2 1/4 2 1/4
2 1/4 2 1/4 2 1/4 2 1/4
2 1/4 2 1/4 2 1/4 2 1/4
2 1/4 2 1/4 2 1/4 2 1/4
2 3/8 2 3/8 2 3/8 2 3/8
2 3/8 2 3/8 2 3/8 2 3/8
2 3/8 2 3/8 2 3/8 2 3/8
2 3/8 2 3/8 2 3/8 2 3/8
2 3/8 2 3/8 2 3/8 2 3/8
2 3/8 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4
31/32 *1 1/16 *1 1/4 *1 3/8 *
1 9/16 *1 9/161 11/161 13/16
2 2 1/8 2 5/162 1/2
2 5/8 2 3/4 2 7/8 3
3 1/4 3 1/4 3 1/4 3 1/4
3 1/4 3 1/4 3 1/4 3 1/4
3 1/4 3 1/4 3 1/4 3 1/4
3 1/4 3 1/4 3 1/4 3 1/4
3 1/2 3 1/2 3 1/2 3 1/2
3 1/2 3 1/2 3 1/2 3 1/2
3 1/2 3 1/2 3 1/2 3 1/2
3 1/2 3 1/2 3 1/2 3 1/2
3 1/2 3 1/2 3 1/2 3 1/2
3 1/2 4 4 4
4 4 4
7/8 7/8 7/8 7/8
7/8 7/8 7/8 7/8
7/8 1 1 1
1 1 1 1
1 1 1 1
1 1 1 1
1 1 1 1
1 1 1 1
1 1/8 1 1/8 1 1/8 1 1/8
1 1/8 1 1/8 1 1/8 1 1/8
1 1/8 1 1/8 1 1/8 1 1/8
1 1/8 1 1/8 1 1/8 1 1/8
1 1/8 1 1/8 1 1/8 1 1/8
1 1/8 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4
0.180.200.270.35
0.450.500.590.70
0.791.041.221.43
1.561.731.962.13
2.412.542.582.66
2.732.802.983.10
3.163.223.303.46
3.583.623.703.76
4.694.764.825.12
5.155.305.575.64
5.845.905.966.08
6.286.336.426.46
6.897.027.367.45
7.8611.0011.5013.40
14.0417.5622.56
H40A12H40A13H40A14H40A15
H40A16H40A17H40A18H40A19
H40A20H40A21H40A22H40A23
H40A24H40A25H40A26H40A27
H40A28H40A29H40A3040A31
40A3240A3340A3440A35
40A3640A3740A3840A39
40A4040A4140A4240A43
40A4440A4540A4640A47
40A4840A4940A5040A51
40A5240A5340A5440A55
40A5640A5740A5840A59
40A6040A7040A7240A80
40A8440A9640A112
1/2 1/2 1/2 5/8
5/8 5/8 5/8 5/8
5/8 5/8 5/8 5/8
5/8 5/8 5/8 5/8
5/8 19/32 19/32 19/32
19/32 19/32 19/32 19/32
19/32 19/32 19/32 19/32
23/32 23/32 23/32 23/32
23/32 23/32 23/32 23/32
23/32 23/32 23/32 23/32
23/32 23/32 23/32 23/32
23/32 23/32 23/32 23/32
23/32 23/32 23/32 23/32
23/32 15/16 15/16
0.180.220.260.30
0.340.360.440.46
0.560.580.660.72
0.820.880.940.98
1.101.221.261.40
1.481.561.641.70
1.841.922.002.02
2.222.422.502.80
2.853.153.263.32
3.223.443.623.94
4.084.244.444.54
4.845.005.125.30
5.487.247.74
10.20
10.0712.1520.00
*Has a recessed groove in the hub for chain clearance. Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” prefix have hardened teeth.
OutsideDiameter
.284Nominal
TYPE A
HubDiameter
LengthThru Bore
.284Nominal
OutsideDiameter
TYPE B
www.BlackStarPT.com 15
All dimensions in inches.
40 Sprockets1/2” Pitch
Single - Bored to Size — Keyway and 2 Setscrews
No.of
Teeth Catalog Number
Diameters
Length Thru Bore
Approx.Weight(lbs.) Stock Finished Bore Includes Keyway and 2 Setscrews
Outside
Diameter Pitch
Diameter
9 10 11 12 13
14 15 16 17 18
19 20 21 22 23
24 25 26 27 28
29 30 31 32 33
34 35 36 37 38
39 40 41 42 43
44 45 46 47 48
49 50 51 52 53
54 55 56 57 58
59 60 70 72 80
84 96
112
H40BS9 H40BS10 H40BS11 H40BS12 H40BS13
H40BS14 H40BS15 H40BS16 H40BS17 H40BS18
H40BS19 H40BS20 H40BS21 H40BS22 H40BS23
H40BS24 H40BS25 H40BS26 H40BS27 H40BS28
H40BS29 H40BS30 40BS31 40BS32 40BS33
40BS34 40BS35 40BS36 40BS37 40BS38
40BS39 40BS40 40BS41 40BS42 40BS43
40BS44 40BS45 40BS46 40BS47 40BS48
40BS49 40BS50 40BS51 40BS52 40BS53
40BS54 40BS55 40BS56 40BS57 40BS58
40BS59 40BS60 40BS70 40BS72 40BS80
40BS84 40BS96 40BS112
1.67 1.84 2.00 2.17 2.33
2.49 2.65 2.81 2.97 3.14
3.30 3.46 3.62 3.78 3.94
4.10 4.26 4.42 4.58 4.74
4.90 5.06 5.22 5.38 5.54
5.70 5.86 6.02 6.17 6.33
6.49 6.65 6.81 6.97 7.13
7.29 7.45 7.61 7.77 7.93
8.09 8.25 8.41 8.57 8.73
8.88 9.04 9.20 9.36 9.52
9.68 9.84
11.43 11.75 13.03
13.66 15.57 18.12
1.4621.6181.7751.9322.089
2.2472.4052.563 2.721 2.879
3.0383.1963.3553.5133.672
3.8313.9894.1484.3074.465
4.8984.7835.2175.3765.536
5.6965.8566.0156.1746.334
6.4946.6536.8126.9727.132
7.2917.4507.6097.7697.928
8.0888.2488.4068.5668.725
8.8849.0449.2049.3629.522
9.6289.840
11.43311.46312.736
13.37215.28217.827
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4
.16 .24 .28 .34 .45
.51
.53
.66
.88 1.03
1.17 1.33 1.53 1.66 1.92
2.10 2.22 2.34 2.42 2.50
2.60 2.70 2.88 3.00 3.03
3.11 3.20 3.39 3.45 3.50
4.00 4.28 4.58 4.64 4.80
4.96 5.06 5.19 5.26 5.66
5.72 5.78 5.90 5.94 6.12
6.24 6.66 6.71 6.94 7.17
7.38 7.68
10.80 11.30 13.20
13.84 17.44 22.45
* 1⁄2 * 1⁄2 * 1⁄2 * 1⁄2 * 1⁄2
* 1⁄2 * 1⁄2
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8
3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4
7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8
1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8
1 3/16 1 3/16 1 3/16 1 3/16
1 3/16 1 3/16 1 3/16 1 3/16 1 3/16
1 3/16 1 3/16 1 3/16 1 3/16 1 3/16
1 3/16 1 3/16 1 3/16 1 3/16 1 3/16
1 3/16 1 3/16 1 3/16 1 3/16 1 3/16
1 3/16 1 3/16 1 3/16 1 3/16 1 3/16
1 3/16 1 3/16 1 3/16 1 3/16 1 3/16
1 3/16 1 3/16 1 3/16 1 3/16 1 3/16
1 3/16 1 3/16 1 3/16 1 3/16 1 3/16
1 3/16 1 3/16 1 3/16 1 3/16 1 3/16
1 3/16 1 3/16 1 3/16
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4
1 3/8
1 3/8 1 3/8 1 3/8 1 3/8 1 3/8
1 3/8
1 7/16
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 7/16 1 7/16 1 7/16
1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2
*Indicates no keyway and (2) 1/4” setscrews only. Hub diameters may vary to suit different bore sizes.
Sprockets with “H” prefix have hardened teeth.
NOTE: KEYWAY IS ON CENTER LINE OF TOOTH.
LengthThru Bore
.284Nominal
OutsideDiameter
Superior Materials Make Superior Products16
All dimensions in inches.
40 Sprockets1/2” PitchSingle - Type C
No.of
Teeth Catalog Number
Diameters Bore Hub
Approx. Weight(lbs.)
Outside Diameter
Pitch Diameter Stock
Recommended Max. Diameter
LengthThru Bore
12 13 14 15 16 17 18
H40C12 H40C13 H40C14 H40C15 H40C16 H40C17 H40C18
2.17 2.33 2.49 2.65 2.81 2.97 3.14
1.9322.0892.2472.4052.563 2.721 2.879
1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 5⁄8 5⁄8
1 1 1⁄16 1 1⁄8 1 1⁄4 1 3⁄8 1 7⁄16 1 1⁄2
1 39⁄64 * 1 3⁄4 1 11⁄16 1 7⁄8 2 2 1⁄8 2 5⁄16
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
.75
.94
.91 1.19 1.34 1.50 1.80
*Has a recessed groove in the hub for chain clearance.Sprockets with “H” prefix have hardened teeth.
Double Single - Type ANo.of
Teeth
Catalog Number
Diameters Bore
E Approx. Weight
(lbs.)Outside
Diameter Pitch
Diameter Minimum Maximum
15 16 17 18 19
20 21 22 23 24
25
DS40A15H DS40A16H DS40A17H DS40A18H DS40A19H
DS40A20H DS40A21H DS40A22H DS40A23H DS40A24H
DS40A25H
2.65 2.81 2.98 3.14 3.30
3.46 3.62 3.78 3.94 4.10
4.26
2.405 2.563 2.721 2.879 3.038
3.196 3.355 3.513 3.672 3.831
3.989
1⁄2 1⁄2 1⁄2 1⁄2 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8
1 1⁄4 1 1⁄4 1 5⁄16 1 1⁄2 1 11⁄16 1 3⁄4 1 3⁄4 1 13⁄16 2 1⁄16 2 1⁄4
2 1⁄4
1 13⁄16 2 2 1⁄8 2 5⁄16 2 1⁄2
2 5⁄8 2 25⁄32 2 15⁄16 3 3⁄32 3 17⁄64
3 7⁄16
1.2 1.4 1.6 1.8 2.2
2.6 2.9 3.0 3.5 4.0
4.5
Sprockets with “H” suffix have hardened teeth.
E
.284Nominal
TYPE C TYPE A
HubDiameter
LengthThru Bore
.284Nominal
www.BlackStarPT.com 17
All dimensions in inches.
Double Single - TL Style No.of
Teeth Catalog Number Bushing
Diameters
Type
Bore Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter Mimimum Maximum E L2
BushingOnly
SprocketOnly
18 19 20 21 23 24
DS40ATL18H DS40ATL19H DS40ATL20H DS40ATL21H DS40ATL23H DS40ATL24H
1215 1215 1215 1615 1615 1615
3.14 3.30 3.46 3.62 3.94 4.10
2.879 3.038 3.196 3.355 3.672 3.831
A A A A A A
1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 1⁄2
1 1⁄4 1 1⁄4 1 1⁄4 1 5⁄8 1 5⁄8 1 5⁄8
2 5⁄16 2 1⁄2 2 5⁄8 2 25⁄32 3 3⁄32 3 17⁄64
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
0.60.60.60.90.90.9
1.0 1.1 1.3 1.3 1.5 1.7
TYPE A TYPE B
DS40 Sprockets1/2” Pitch
L1
L2 E
C
OutsideDiameter
.284Nominal
1.406.284
Nominal
E2L
1.125
OutsideDiameter
Double Single - TL Style No.of
Teeth Catalog Number Bushing
Diameters
Type
Bore Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter Mimimum Maximum E L2
BushingOnly
SprocketOnly
19212324
DS40H19HDS40H21HDS40P23HDS40P24H
HHP1P1
3.303.623.944.10
3.0383.3553.6723.831
BBBB
3/83/81/21/2
1 1/21 1/21 3/4 1 3/4
2 1⁄2 2 25⁄32 3 3⁄32 3 17⁄64
21/3221/3229/3229/32
0.80.81.31.3
1.52.02.32.5
Sprockets with “H” suffix have hardened teeth.
Superior Materials Make Superior Products18
All dimensions in inches.
40 Sprockets1/2” PitchSingle - Split Taper Style
No.of
Teeth Catalog Number Bushing
Diameters
Type
Maximum Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
Bushing Only
SprocketOnly
15 16 17 18 18
19 19 20 20 21
21 22 22 23 23
24 24 25 25 26
26 27 28 28 29
30 30 31 32 32
33 33 34 35 35
36 36 37 38 38
40 40 41 42 44 45 47 48 50 54
56 60 60 70 70
72 80 84 96 112
H40H15 H40H16 H40H17 H40H18 H40P18 H40H19 H40P19 H40H20 H40P20 H40H21 H40P21 H40H22 H40P22 H40H23 H40P23 H40H24 H40P24 H40H25 H40P25 H40H26 H40P26 H40H27 H40H28 H40P28 H40P29 H40H30 H40P30 40P31 40H32 40P32 40H33 40P33 40P34 40H35 40P35 40H36 40P36 40P37 40H38 40P38 40H40 40P40 40P41 40P42 40P44 40P45 40P47 40P48 40P50 40P54 40P56 40P60 40Q60 40P70 40Q70 40Q72 40Q80 40Q84 40Q96 40Q112
H H H H P1
H P1 H P1 H
P1 H P1 H P1
H P1 H P1 H
P1 H H P1 P1
H P1 P1 H P1
H P1 P1 H P1
H P1 P1 H P1
H P1 P1 P1 P1
P1 P1 P1 P1 P1
P1 P1 Q1 P1 Q1
Q1 Q1 Q1 Q1 Q1
2.65 2.81 2.98 3.14 3.14
3.30 3.30 3.46 3.46 3.62
3.62 3.78 3.78 3.94 3.94
4.10 4.10 4.26 4.26 4.42
4.42
4.58 4.74 4.74 4.90
5.06 5.06 5.22 5.38 5.38
5.54 5.54 5.70 5.86 5.86
6.02 6.02 6.18 6.33 6.33
6.65 6.65 6.81 6.97 7.29
7.45 7.77 7.93 8.25 8.89
9.20 9.84 9.84
11.43 11.43
11.75
13.03 13.66 15.57 18.12
2.405 2.563 2.721 2.879 2.879
3.038 3.038 3.196 3.196 3.355
3.355 3.513 3.513 3.672 3.672
3.831 3.831 3.989 3.989 4.148
4.148
4.307 4.466 4.466 4.625
4.783 4.783 4.942 5.101 5.101
5.260 5.260 5.419 5.578 5.578
5.737 5.737 5.896 6.055 6.055
6.373 6.373 6.532 6.691 7.009
7.168
7.486 7.645 7.963 8.599
8.917
9.554 9.554 11.145 11.145
11.463
12.736 13.372 15.281 17.828
3 3 3 3 3 3 4 3 4 3 4 3 4 3 4 3 4 3 4 3 4 3 3 4 4 3 4 4 3 4 3 4 4 3 4 3 4 4 3 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
1 1/2 1 1/2 1 1/2 1 1/2 1 3/4 1 1/2 1 3/4 1 1/2 1 3/4 1 1/2 1 3/4 1 1/2 1 3/4 1 1/2 1 3/4 1 1/2 1 3/4 1 1/2 1 3/4 1 1/2 1 3/4 1 1/2 1 1/2 1 3/4 1 3/4 1 1/2 1 3/4 1 3/4 1 1/2 1 3/4 1 1/2 1 3/4 1 3/4 1 1/2 1 3/4 1 1/2 1 3/4 1 3/4 1 1/2 1 3/4 1 1/2 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4 2 11/16 1 3/4 2 11/16 2 11/16 2 11/16 2 11/16 2 11/16 2 11/16
1 19/32 1 19/32 1 1/2 1 1/2 2 3/16
1 1/2 2 3/16 1 1/2 2 3/16 1 1/2
2 3/16 1 1/2 2 3/16 1 1/2 2 3/16
1 1/2 2 3/16 1 1/2 2 3/16 1 1/2
2 3/16 1 1/2 1 1/2 2 3/16 2 3/16
1 1/2 2 3/16 2 3/16 1 1/2 2 3/16
1 1/2 2 3/16 2 3/16 1 1/2 2 3/16
1 1/2 2 3/16 2 3/16 1 1/2 2 3/16
1 1/2 2 3/16 2 3/16 2 3/16 2 3/16
2 3/16 2 3/16 2 3/16 2 3/16 2 3/16
2 3/16 2 3/16 2 25/32 2 3/16 2 25/32
2 25/32 2 25/32 2 25/32 2 25/32 2 25/32
1 1/4 1 1/4 1 1/4 1 1/4 1 15/16 1 1/4 1 15/16 1 1/4 1 15/16 1 1/4 1 15/16 1 1/4 1 15/16 1 1/4 1 15/16 1 1/4 1 15/16 1 1/4 1 15/16 1 1/4 1 15/16 1 1/4 1 1/4 1 15/16 1 15/16 1 1/4 1 15/16 1 15/16 1 1/4 1 15/16 1 1/4 1 15/16 1 15/16 1 1/4 1 15/16 1 1/4 1 15/16 1 15/16 1 1/4 1 15/16 1 1/4 1 15/16 1 15/16 1 15/16 1 15/16 1 15/16 1 15/16 1 15/16 1 15/16 1 15/16 1 15/16 1 15/16 2 1/2 1 15/16 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
5/32 5/32 1/16 1/16 0
1/16 0 1/16 0 1/16
0 1/16 0 1/16 0
1/16 0 1/16 0 1/16
0 1/16 1/16 0 0
1/16 0 0 1/16 0
1/16 0 0 1/16 0
1/16 0 0 1/16 0
1/16 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
2 1/2 2 1/2 2 1/2 2 1/2 3 2 1/2 3 2 1/2 3 2 1/2 3 2 1/2 3 2 1/2 3 2 1/2 3 2 1/2 3 2 1/2 3 2 1/2 2 1/2 3 3 2 1/2 3 3 2 1/2 3 2 1/2 3 3 2 1/2 3 2 1/2 3 3 2 1/2 3 2 1/2 3 3 3 3 3 3 3 3 3 3 3 4 1/8 3 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8
1 1/8 1 1/8 1 1/32 1 1/32 1 21/32 1 1/32 1 21/32 1 1/32 1 21/32 1 1/32 1 21/32 1 1/32 1 21/32 1 1/32 1 21/32 1 1/32 1 21/32 1 1/32 1 21/32 1 1/32 1 21/32 1 1/32 1 1/32 1 21/32 1 21/32 1 1/32 1 21/32 1 21/32 1 1/32 1 21/32 1 1/32 1 21/32 1 21/32 1 1/32 1 21/32 1 1/32 1 21/32 1 21/32 1 1/32 1 21/32 1 1/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 2 7/32 1 21/32 2 7/32 2 7/32 2 7/32 2 7/32 2 7/32 2 7/32
0.8 0.8 0.8 0.8 1.3
0.8 1.3 0.8 1.3 0.8
1.3
0.8 1.3 0.8 1.3
0.8 1.3 0.8 1.3 0.8
1.3
0.8 0.8 1.3 1.3
0.8 1.3 1.3 0.8 1.3
0.8 1.3 1.3 0.8 1.3
0.8 1.3 1.3 0.8 1.3
0.8 1.3 1.3 1.3 1.3
1.3 1.3 1.3 1.3 1.3
1.3 1.3 3.5 1.3 3.5
3.5 3.5 3.5 3.5 3.5
0.5 0.6 0.6 0.6 1.4
0.8 1.3 0.9 1.3 0.9
1.5 1.0 1.6 1.0 1.7
1.1
1.8 1.3 1.9 1.3
1.9 1.4 1.4 2.1 2.3
1.6
2.3 2.5 1.8 2.6
1.9
2.6 2.8 2.1 2.9
2.3 3.1 3.3 2.6 3.3
2.8
3.5 3.6 3.9 4.0
4.2 4.6 4.8 5.0 5.5
5.9 6.6 8.8 8.6
11.0
11.2 13.1 14.1 12.8 17.3
Sprockets with “H” prefix have hardened teeth.
www.BlackStarPT.com 19
All dimensions in inches.
TYPE 4
TYPE 3
C L
P
H
0.284NominalO.L.
OutsideDiameter
0.284Nominal
O.L.
H
P
C L
OutsideDiameter
Superior Materials Make Superior Products20
All dimensions in inches.
40 Sprockets1/2” PitchSingle - QD Style
No. Teeth
Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter L1 L2 C Y G X
BushingOnly
SprocketOnly
15 16 17
18 19 20
21 22 23
24 25 26
27 28 30
32 35 36
40 42 45
48 54 60
70 72 80
84 96 112
H40JA15 H40JA16 H40JA17
H40JA18 H40JA19 H40SH20
H40SH21 H40SH22 H40SH23
H40SH24 H40SH25 H40SH26
H40SH27 H40SH28 H40SH30
40SH32 40SH35 40SDS36
40SDS40 40SDS42 40SDS45
40SDS48 40SDS54 40SDS60
40SK70 40SK72 40SK80
40SK84 40SK96 40SK112
JA JA JA
JA JA SH
SH SH SH
SH SH SH
SH SH SH
SH SH SDS
SDS SDS SDS
SDS SDS SDS
SK SK SK
SK SK SK
2.65 2.81 2.98
3.14 3.30 3.46
3.62 3.78 3.94
4.10 4.26 4.42
4.58 4.74 5.06
5.38 5.86 6.02
6.65 6.97 7.45
7.93 8.89 9.84
11.43 11.75 13.03
13.66 15.57 18.12
2.405 2.563 2.721
2.879 3.038 3.196
3.355 3.513 3.672
3.831 3.989 4.148
4.307 4.466 4.783
5.101 5.578 5.737
6.373 6.691 7.168
7.645 8.599 9.554
11.145 11.463 12.736
13.372 15.282 17.828
B B B
B B B
B B B
B B B
B B B
B B B
B B B
B B B
B B B
B B B
1 1/41 1/41 1/4
1 1/41 1/41 5/8
1 5/81 5/81 5/8
1 5/81 5/81 5/8
1 5/81 5/81 5/8
1 5/81 5/82
222
222
2 5/82 5/82 5/8
2 5/82 5/82 5/8
1 1/81 1/81 1/8
1 1/81 1/81 7/16
1 7/161 7/161 7/16
1 7/161 7/161 7/16
1 7/161 7/161 7/16
1 7/161 7/161 1/2
1 1/21 1/21 1/2
1 1/21 1/21 1/2
2 1/82 1/82 1/8
2 1/82 1/82 1/8
1 1/81 1/81 1/8
1 1/81 1/81 7/16
1 7/161 7/161 7/16
1 7/161 7/161 7/16
1 7/161 7/161 7/16
1 7/161 7/161 1/2
1 1/21 1/21 1/2
1 1/21 1/21 1/2
2 1/82 1/82 1/8
2 1/82 1/82 1/8
2 1/162 1/162 1/16
2 1/162 1/162 11/16
2 11/162 11/162 11/16
2 11/162 11/162 11/16
2 11/162 11/162 11/16
2 11/1633 3/16
3 3/163 3/163 3/16
3 3/163 3/163 3/16
3 7/83 7/83 7/8
3 7/83 7/83 7/8
23/3223/3223/32
23/3223/3231/32
31/3231/3231/32
31/3231/3231/32
31/3231/3231/32
31/3231/321 1/32
1 1/321 1/321 1/32
1 1/321 1/321 1/32
1 19/321 19/321 19/32
1 19/321 19/321 19/32
11/3211/3211/32
11/3211/3217/32
17/3217/3217/32
17/3217/3217/32
17/3217/3217/32
17/3217/3215/32
15/3215/3215/32
15/3215/3215/32
31/3231/3231/32
31/3231/3231/32
5/85/85/8
5/85/813/16
13/1613/1613/16
13/1613/1613/16
13/1613/1613/16
13/1613/163/4
3/43/43/4
3/43/43/4
1 1/41 1/41 1/4
1 1/41 1/41 1/4
0.90.90.9
0.90.91.0
1.01.01.0
1.01.01.0
1.01.01.0
1.01.01.5
1.51.51.5
1.51.51.5
2.02.02.0
2.02.02.0
0.340.400.48
0.540.600.76
0.840.921.14
1.221.301.44
1.461.541.72
1.902.222.20
2.722.923.32
3.704.785.86
8.688.84
11.20
11.5615.7620.28
Sprockets with “H” prefix have hardened teeth.
OutsideDiameter
L1
Y
G
C
XL2
0.284Nominal
TYPE B
www.BlackStarPT.com 21
All dimensions in inches.
TYPE B
Single - TL Style
No. of
Teeth
Catalog Number
Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L
C
Bushing Only
Sprocket Only
14 15 16 17
18 19 20 21
22 23 24 25
26 28 30 32
35 36 40 42
45 48 54 60
70 72 80
84 96
112
H40BTL14 H40BTL15 H40BTL16 H40BTL17 H40BTL18 H40BTL19 H40BTL20 H40BTL21 H40BTL22 H40BTL23 H40BTL24 H40BTL25 H40BTL26 H40BTL28 H40BTL30 40BTL32 40BTL35 40BTL36 40BTL40 40BTL42 40BTL45 40BTL48 40BTL54 40BTL60 40BTL70 40BTL72 40BTL80 40BTL84 40BTL96 40BTL112
1008 1008 1008 1210
1210 1210 1610 1610
1610 1610 1610 1610
1610 1610 1610 1610
1610 1610 1610 1610
1610 1610 1610 1610
2012 2012 2012
2012 2012 2517
2.41 2.62 2.84 2.98
3.14 3.30 3.48 3.62
3.78 3.94 4.10 4.26
4.49 4.74 5.08 5.38
5.86 6.025 6.65 6.97
7.45 7.99 8.89 9.84
11.43 11.75 13.03
13.66 15.57 18.12
2.247 2.405 2.563 2.721
2.879
3.038 3.196 3.355
3.513
3.672 3.831 3.989
4.148
4.466 4.783 5.101
5.578 5.737 6.373 6.691
7.168
7.645 8.599 9.554
11.145
11.463 12.736
13.372
15.282 17.828
BBBB
BBBB
BBBB
BBBB
BBBB
BBBB
BBB
BBB
1 1 1 1 1⁄4 1 1⁄4 1 1⁄4 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 2 2 2 2 2 2 1⁄2
7⁄8 7⁄8 7⁄8 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 3⁄4
1 13⁄16 * 1 13⁄16 1 15⁄16 2 3⁄8 * 2 15⁄32 * 2 15⁄32 2 25⁄32 * 2 25⁄32 2 25⁄32 3 3⁄32 3 1⁄4 3 13⁄32 3 1⁄2 3 1⁄2 3 1⁄2 3 1⁄2 3 1⁄2 3 3 3 3 3 3 3 3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16 4 1⁄4
0.3 0.3 0.3 0.3
0.6 0.6 0.9 0.9
0.9 0.9 0.9 0.9
0.9 0.9 0.9 0.9
0.9 0.9 0.9 0.9
0.9 0.9 0.9 0.9
1.7 1.7 1.7
1.7 1.7 1.7
0.3 0.4 0.5 0.5
0.6 0.7 0.7 0.8
0.9 1.0 1.4 1.5
1.7
1.8 1.9 1.9
2.3 2.4 2.8 2.9
3.5 4.0 4.9 6.0
8.2 9.0
10.8
11.3 14.6 20.5
* Has a recessed groove in the hub for chain clearance.
Sprockets with “H” prefix have hardened teeth.
40 Sprockets1/2” Pitch
C
L
.284Nominal
OutsideDiameter
Superior Materials Make Superior Products22
All dimensions in inches.
D40 Sprockets1/2” PitchDouble - Type B
No. of
Teeth Catalog Number
Diameters Bore Hub Approx. Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
LengthThru Bore
11 12 13 14
15 16 17 18
19 20 21 22
23 24 25 26
30 35 36 40
42 45 48 52
54 60 68 72
76 84 95 96
102 112
D40B11H D40B12H D40B13H D40B14H
D40B15H D40B16H D40B17H D40B18H
D40B19H D40B20H D40B21H D40B22H
D40B23H D40B24H D40B25H D40B26H
D40B30H D40B35 D40B36 D40B40
D40B42 D40B45 D40B48 D40B52
D40B54 D40B60 D40B68 D40B72
D40B76 D40B84 D40B95 D40B96
D40B102 D40B112
2.00 2.17 2.33 2.49
2.65 2.81 2.98 3.14
3.30 3.46 3.62 3.78
3.94 4.10 4.26 4.42
5.06 5.86 6.02 6.65
6.97 7.45 7.93 8.57
8.89 9.84
11.12 11.75
12.39 13.66 15.41 15.57
16.53 18.12
1.7751.9322.0892.089
2.405 2.563 2.721 2.879
3.038 3.196 3.355 3.513
3.672 3.831 3.989 4.148
4.7835.5785.7376.373
6.6917.1687.6458.281
8.5999.554
10.82611.463
12.09913.37215.12215.282
16.23617.827
1⁄2 1⁄2 1⁄2 1⁄2
1⁄2 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8
7⁄8 7⁄8 15⁄16 15⁄16
15⁄16 15⁄16 15⁄16 15⁄16
15⁄16 15⁄16 1 3⁄16 1 3⁄16
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
1 3⁄16 1 3⁄16
3⁄4 15⁄16 1 1 1⁄8
1 1⁄4 1 3⁄8 1 7⁄16 1 1⁄2
1 3⁄4 1 7⁄8 1 7⁄8 1 7⁄8
2 2 1⁄4 2 1⁄4 2 1⁄4
2 1⁄4 2 1⁄4 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 3⁄4 2 3⁄4
2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4
2 3⁄4 2 3⁄4
1 7⁄16 * 1 9⁄16 *1 1⁄2 1 11⁄16
1 13⁄16 2 2 1⁄8 2 5⁄16
2 1⁄2 2 5⁄8 2 3⁄4 2 7⁄8
3 3 1⁄4 3 1⁄4 3 1⁄4
3 1⁄4 3 1⁄4 3 3⁄4 3 3⁄4
3 3⁄4 3 3⁄4 3 3⁄4 3 3⁄4
3 3⁄4 3 3⁄4 4 1⁄4 4 1⁄4
4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4
4 1⁄4 4 1⁄4
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 2 1⁄8 2 1⁄8
2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8
2 1⁄8 2 1⁄8
.62
.76 .86
1.08
1.24 1.42 1.64 1.92
2.22 2.64 2.94 3.18
3.52 4.04 4.26 4.48
5.34 6.80 7.20 9.40
10.20 11.36 12.66 14.46
15.48 18.60 24.96 27.88
30.18 36.24 38.84 39.50
42.72 55.54
* Has a recessed groove in the hub for chain clearance.
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” suffix have hardened teeth.
TYPE B
HubDiameter
LengthThru Bore
.275Nominal
.841
OutsideDiameter
www.BlackStarPT.com 23
All dimensions in inches.
Double - QD StyleNo.of
TeethCatalogNumber Bushing
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
OutsideDiameter
PitchDiameter L1 L2 C Y P
BushingOnly
Sprocket Only
36404245
48525460
68727684
95102112
D40SK36D40SK40D40SK42D40SK45
D40SK48D40SK52D40SK54D40SK60
D40SF68D40SF72D40SF76D40SF84
D40SF95D40SF102D40SF112
SKSKSKSK
SKSKSKSK
SFSFSFSF
SFSFSF
6.026.656.977.45
7.938.578.899.84
11.1811.7512.3913.66
15.4116.5318.12
5.7376.3736.6917.168
7.6458.2818.5999.554
10.82611.46312.09913.372
15.12216.23617.828
CCCC
CCCC
CCCC
CCC
2 5/82 5/82 5/82 5/8
2 5/82 5/82 5/82 5/8
2 15/162 15/162 15/162 15/16
2 15/162 15/162 15/16
2 1/82 1/82 1/82 1/8
2 1/82 1/82 1/82 1/8
2 1/42 1/42 1/42 1/4
2 1/42 1/42 1/4
2 1/82 1/82 1/82 1/8
2 1/82 1/82 1/82 1/8
2 1/42 1/42 1/42 1/4
2 1/42 1/42 1/4
3 7/83 7/83 7/83 7/8
3 7/83 7/83 7/83 7/8
4 5/84 5/84 5/84 5/8
4 5/84 5/84 5/8
5/85/85/85/8
5/85/85/85/8
3/43/43/43/4
3/43/43/4
13/3213/3213/3213/32
13/3213/3213/3213/32
13/3213/3213/3213/32
13/3213/3213/32
2.02.02.02.0
2.02.02.02.0
3.03.03.03.0
3.03.03.0
4.686.026.827.98
9.2211.0412.0614.98
19.7222.2025.2030.64
37.2239.7049.60
TYPE C
D40 Sprockets1/2” Pitch
1L
2L
1.250
C
0.275Nominal
Y0.841
P
OutsideDiameter
Superior Materials Make Superior Products24
All dimensions in inches.
D40 Sprockets1/2” PitchDouble - Split Taper Style
No. of
Teeth Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
Bushing Only
Sprocket Only
15 16 17 18 19 20 21 22
23 24 25 26
28 30 32 35
36 40 42 45
48 52 54 60
68 72 76 84
95 96 102 112
D40H15H D40H16H D40H17H D40P18H D40P19H D40P20H D40P21H D40P22H D40P23H D40P24H D40P25H D40P26H D40P28H D40Q30H D40Q32H D40Q35H D40Q36H D40Q40H D40Q42H D40Q45H D40Q48H D40Q52H D40Q54H D40Q60H D40Q68 D40Q72 D40Q76 D40Q84 D40Q95 D40Q96 D40Q102 D40Q112
H H H P1
P1 P1 P1 P1
P1 P1 P1 P1
P1 Q1 Q1 Q1
Q1 Q1 Q1 Q1
Q1 Q1 Q1 Q1
Q1 Q1 Q1 Q1
Q1 Q1 Q1 Q1
2.65 2.81 2.98 3.14
3.30 3.46 3.62 3.78
3.94 4.10 4.26 4.42
4.74
5.06 5.38 5.86
6.02 6.65 6.97 7.45
7.93
8.57 8.89 9.84
11.12
11.75 12.39 13.66
15.41
15.57 16.53 18.12
2.405 2.563 2.721 2.879
3.038 3.196 3.355 3.513
3.672
3.831 3.989 4.148
4.466 4.783 5.101 5.578
5.737
6.373 6.691 7.168
7.645
8.281 8.599 9.554
10.826 11.463 12.099 13.372
15.122
15.281 16.236 17.828
11 11 11 16
12 12 12 12
12 12 12 12
12 12 12 12
12 12 12 12
12 12 12 12
12 12 12 12
12 12 12 12
1 1/2 1 1/2 1 1/2 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4
1 3/4 1 3/4 1 3/4 1 3/4
1 3/4 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16
2 5/32 2 5/32 2 5/32 3 3/16 2 15/32 2 13/32 2 13/32 2 13/32 2 3/16 2 3/16 2 3/16 2 3/16 2 3/16 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32
1 1/4 1 1/4 1 1/4 1 15/16 1 15/16 1 15/16 1 15/16 1 15/16 1 15/16 1 15/16 1 15/16 1 15/16 1 15/16 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
23/32 23/32 23/32 1 9/32 7/32 7/32 7/32 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2 1/2 2 1/2 2 1/2 3 3 3 3 3 3 3 3 3 3 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8
1 1/8 1 1/8 1 1/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/32 1 3/32 1 3/32 1 3/32 1 3/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32 1 21/32
0.8 0.8 0.8 1.3
1.3 1.3 1.3 1.3
1.3 1.3 1.3 1.3
1.3
3.5 3.5 3.5
3.5 3.5 3.5 3.5
3.5 3.5 3.5 3.5
3.5 3.5 3.5 3.5
3.5 3.5 3.5 3.5
0.9 1.0 1.1 1.8
1.4 1.6 1.8 2.0
2.0 2.2 2.5 2.7
3.1 4.2 5.3 6.1
6.5 7.9 8.9
10.1
11.8 12.6 14.3 17.4
21.5
25.0 26.9 34.1
42.0 44.1 48.5 61.0
Sprockets with “H” suffix have hardened teeth.
0.841
OutsideDiameter
H
O.L.
P
C L
Nom0.275
TYPE 12
O.L.
OutsideDiameter
Nom0.275
0.841
P
H
C L
TYPE 11
OL
OutsideDiameter
0.841C
Nom0.275
MP
H
TYPE 16
www.BlackStarPT.com 25
All dimensions in inches.
D40 Sprockets1/2” Pitch
Double - TL Style
No. of
Teeth
Catalog Number
Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L
C
Bushing Only
Sprocket Only
15 16 17 18
19 20 21 23
25 30 36 42
48 52 60 68
76 84 95
102
D40ATL15H D40ATL16H D40ATL17H D40BTL18H D40BTL19H D40BTL20H D40BTL21H D40BTL23H D40BTL25H D40BTL30H D40BTL36 D40CTL42 D40CTL48 D40CTL52 D40CTL60 D40CTL68 D40CTL76 D40CTL84 D40CTL95 D40CTL102
1008 1008 1008 1210
1210 1610 1610 1610
2012 2012 2012 2517
2517 2517 2517 2517
2517 2517 2517 2517
2.65 2.81 2.98 3.14
3.30 3.46 3.62 3.99
4.26 5.06 6.02 6.97
7.99 8.57 9.84
11.12
12.39 13.66 15.41 16.53
2.405 2.563 2.721 2.879
3.038 3.196 3.355 3.672
3.989 4.783 5.737 6.691
7.645
8.281 9.554
10.826
12.099 13.372 15.122 16.236
AAA B
BBBB
BBBC
CCCC
CCCC
1 1 1 1 1⁄4
1 1⁄4 1 5⁄8 1 5⁄8 1 5⁄8 2 2 2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
7⁄8 7⁄8 7⁄8 1
1 1 1 1
1 1⁄4 1 1⁄4 1 1⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 17⁄64 1 17⁄64 1 17⁄64 2 5⁄16 2 1⁄2 2 5⁄8 2 3⁄4 3 3 13⁄32 4 15⁄64 5 5⁄32 4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4
0.3 0.3 0.3 0.6
0.6 0.9 0.9 0.9
1.7 1.7 1.7 3.5
3.5 3.5 3.5 3.5
3.5 3.5 3.5 3.5
0.5 0.6 0.7 0.7
0.9 0.9 1.0 1.3
1.6
3.4 5.9 7.0
9.6
11.4 15.4 20.5
25.7 31.6 34.1 36.8
Sprockets with “H” suffix have hardened teeth.
TYPE A TYPE B TYPE C
C
L
.275Nominal
.841
C
L
.275Nominal
.841
L
C
.275Nominal
.841
Superior Materials Make Superior Products26
All dimensions in inches.
T40 Sprockets1/2” PitchTriple - Type B
No. of
Teeth Catalog Number
Diameters Bore Hub Approx.Weight (lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
11 12 13 14
15 16 17 18
19 20 21 22
23 24 25 26
30 35 36 42
48 52 60 68
72 76 84 95
102
T40B11H T40B12H T40B13H T40B14H
T40B15H T40B16H T40B17H T40B18H
T40B19H T40B20H T40B21H T40B22H
T40B23H T40B24H T40B25H T40B26H
T40B30H T40B35 T40B36 T40B42
T40B48 T40B52 T40B60 T40B68
T40B72 T40B76 T40B84 T40B95 T40B102
2.00 2.17 2.33 2.49
2.65 2.81 2.98 3.14
3.30 3.46 3.62 3.78
3.94 4.10 4.26 4.42
5.06 5.86 6.02 6.97
7.93 8.57 9.84
11.12
11.75 12.39 13.66 15.41 16.53
1.7751.9322.0892.247
2.405 2.563 2.721 2.879
3.038 3.196 3.355 3.513
3.672 3.831 3.989 4.148
4.7835.5785.7376.691
7.6458.2819.872
10.826
11.46312.09913.37215.12216.236
1⁄2 1⁄2 1⁄2 1⁄2
1⁄2 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8
7⁄8 7⁄8 15⁄16 15⁄16
15⁄16 15⁄16 15⁄16 13⁄16
13⁄16 13⁄16 13⁄16 13⁄16 13⁄16
3⁄4 15⁄16 1 1 1⁄8
1 1⁄4 1 3⁄8 1 7⁄16 1 1⁄2
1 3⁄4 1 7⁄8 1 7⁄8 1 7⁄8
2 2 1⁄4 2 1⁄4 2 1⁄4
2 1⁄4 2 1⁄4 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 3⁄4
2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4
1 7⁄16 *1 9⁄16 *1 1⁄2 1 11⁄16
1 13⁄16 2 2 1⁄8 2 5⁄16
2 1⁄2 2 5⁄8 2 3⁄4 2 7⁄8
3 3 1⁄4 3 1⁄4 3 1⁄4
3 1⁄4 3 1⁄4 3 3⁄4 3 3⁄4
3 3⁄4 3 3⁄4 3 3⁄4 4
4 4 4 1⁄4 4 1⁄4 4 1⁄4
2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8
2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8
2 1⁄8 2 1⁄4 2 1⁄4 2 1⁄4
2 1⁄4 2 1⁄4 2 1⁄4 2 1⁄4
2 1⁄4 2 1⁄4 2 3⁄8 2 3⁄8
2 3⁄8 2 3⁄8 2 3⁄8 2 5⁄8
2 5⁄8 2 5⁄8 2 3⁄4 2 3⁄4 2 3⁄4
0.81.1 1.2 1.5
1.82.02.32.7
3.13.7 4.14.5
5.05.66.06.4
7.810.3 11.715.4
19.422.430.038.4
42.546.957.362.268.4
Sprockets with “H” suffix have hardened teeth.
.275Nominal
Length Thru Bore
HubDiameter
1.407
OutsideDiameter
TYPE B
www.BlackStarPT.com 27
All dimensions in inches.
T40 Sprockets1/2” Pitch
Triple - QD Style
No.of
TeethCatalogNumber BushIng
Diameters
TypeMaximum
Bore
DImensions Approx. Weight (lbs.)
OutsideDiameter
PitchDiameter L1 L2 C Y X
BushingOnly
SprocketOnly
364248
526068
727684
95102
T40SK36T40SK42T40SK48
T40SK52T40SK60T40SF68
T40SF72T40SF76T40SF84
T40SF95T40SF102
SKSKSK
SKSKSF
SFSFSF
SFSF
6.026.977.93
8.579.84
11.12
11.7512.3913.66
15.4116.53
5.7376.6917.645
8.2819.554
10.826
11.46312.09913.372
15.12216.236
BBB
BBB
BBB
BB
2 5/82 5/82 5/8
2 5/82 5/82 15/16
2 15/162 15/162 15/16
2 15/162 15/16
2 1/82 1/82 1/8
2 1/82 1/82 1/4
2 1/42 1/42 1/4
2 1/42 1/4
2 1/82 1/82 1/8
2 1/82 1/82 1/4
2 1/42 1/42 1/4
2 1/42 1/4
3 7/83 7/83 7/8
3 7/83 7/84 /58
4 5/84 5/84 5/8
4 5/84 5/8
15/3215/3215/32
15/3215/3219/32
19/3219/3219/32
19/3219/32
1 1/41 1/41 1/4
1 1/41 1/41 1/4
1 1/41 1/41 1/4
1 1/41 1/4
2.02.02.0
2.02.03.0
3.03.03.0
3.03.0
6.169.52
13.16
16.0822.6029.98
34.4048.9253.78
55.9459.24
TYPE B
C
T
1.407
L1
0.275Nominal
L2X
Superior Materials Make Superior Products28
All dimensions in inches.
T40 Sprockets1/2” PitchTriple - Split Taper Style
No.of
TeethCatalogNumber BushIng
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
BushingOnly
Sprocket Only
1819202324
2527303536
4248525460
6872768495102
T40P18HT40P19HT40P20HT40P23HT40P24H
T40P25HT40P27HT40Q30HT40Q35T40Q36
T40Q42T40Q48T40Q52T40Q54T40Q60
T40Q68T40Q72T40Q76T40Q84T40Q95T40Q102
P1P1P1P1P1
P1P1Q1Q1Q1
Q1Q1Q1Q1Q1
Q1Q1Q1Q1Q1Q1
3.143.303.463.944.10
4.264.585.065.866.02
6.977.938.578.899.84
11.1211.7512.3913.6615.4116.53
2.8793.0383.1963.6723.831
3.9894.3074.7835.5785.737
6.6917.6458.2818.5999.554
10.82611.46312.09913.37215.12216.236
2722222323
2323222222
2222222222
222222222222
1 3/41 3/41 3/41 3/41 3/4
1 3/41 3/42 11/162 11/162 11/16
2 11/162 11/162 11/162 11/162 11/16
2 11/162 11/162 11/162 11/162 11/162 11/16
3 3/43 1/32231/322 9/322 9/32
2 9/322 9/322 25/322 25/322 25/32
2 25/322 25/322 25/322 25/322 25/32
2 25/322 25/322 25/322 25/322 25/322 25/32
1 15/161 15/161 15/161 15/161 15/16
1 15/161 15/162 1/22 1/22 1/2
2 1/22 1/22 1/22 1/22 1/2
2 1/22 1/22 1/22 1/22 1/22 1/2
1 9/1627/3225/323/323/32
3/323/32000
00000
000000
33333
334 1/84 1/84 1/8
4 1/84 1/84 1/84 1/84 1/8
4 1/84 1/84 1/84 1/84 1/84 1/8
1 3/81 3181 5/165/85/8
5/85/81 3/321 3/321 3/32
1 3/321 3/321 3/321 3/321 3/32
1 3/321 3/321 3/321 3/321 3/321 3/32
1.31.31.31.31.3
1.31.33.53.53.5
3.53.53.53.53.5
3.53.53.53.53.53.5
1.91.82.02.32.6
3.03.34.56.97.6
11.115.218.719.925.3
33.537.942.552.467.978.5
Sprockets with “H” suffix have hardened teeth.
C
.275
1.407
P
L
OutsideDiameter
H
O.L.
TYPE 22
C L
.275
1.407 P
OutsideDiameter
OL
H
TYPE 23
L
1.407
C
.275P
OutsideDiameter H
O.L.
TYPE 27
www.BlackStarPT.com 29
All dimensions in inches.
50 Sprockets5/8” Pitch
Single-Type B Single-Type ANo. of
TeethCatalogNumber
Diameters Bore HubApprox.Weight(lbs.)
CatalogNumber
StockBore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
89
1011
12131415
16171819
20212223
24252627
28293031
32333435
36373839
40414243
44454647
48495051
52535455
56575859
60707276
80849596
112
H50B8H50B9H50B10H50B11
H50B12H50B13H50B14H50B15
H50B16H50B17H50B18H50B19
H50B20H50B21H50B22H50B23
H50B24H50B25H50B26H50B27
H50B28H50B29H50B3050B31
50B3250B3350B3450B35
50B3650B3750B3850B39
50B4050B4150B4250B43
50B4450B4550B4650B47
50B4850B4950B5050B51
50B5250B5350B5450B55
50B5650B5750B5850B59
50B6050B7050B7250B76
50B8050B8450B9550B9650B112
1.882.092.302.50
2.712.913.113.32
3.523.723.924.12
4.324.524.724.92
5.125.325.525.72
5.926.126.323.52
6.726.927.127.32
7.527.727.928.12
8.328.528.728.91
9.119.319.519.71
9.9110.1110.3110.51
10.7110.9111.1111.31
11.5011.7011.9012.10
12.3014.2914.6915.49
16.2817.0819.2719.4722.65
1.6331.8282.0232.219
2.4152.6122.8093.006
3.2043.4013.5993.798
3.9954.1944.3924.590
4.7884.9875.185 5.384
5.5825.7815.9796.178
6.3766.5756.7746.973
7.1717.3707.5697.768
7.9668.1658.3648.563
8.7618.9609.1599.358
9.5569.7559.954
10.153
10.35110.55010.74910.948
11.14711.34611.54411.743
11.94213.93114.32915.124
15.91916.71518.90319.10222.284
5/8 5/8 5/8 5/8 5/8 5/8 5/8 5/8 5/8 5/8 5/8 5/8 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
5/8 3/4 7/8 1
1 1/4 1 5/161 7/161 1/2 1 3/4 1 7/8 1 7/8 2 2 2 2 2 2 2 2 2 2 2 2 1/4 2 1/4 2 1/4 2 1/4 2 1/4 2 1/4 2 1/4 2 1/4 2 1/4 2 1/4 2 1/4 2 1/4 2 1/4 2 1/4 2 1/4 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 3/4 2 3/4 2 3/4 2 3/4 2 3/4
1 1/8 *1 3/8 *1 9/16 *1 3/4 * 1 63/64 *1 7/8 2 1/8 2 3/8 2 1/2 2 11/162 7/8 3 3 3 3 3 3 3 3 3 3 3 3 1/4 3 1/4 3 1/4 3 1/4 3 1/4 3 1/4 3 1/4 3 1/4 3 1/4 3 1/4 3 1/4 3 1/4 3 1/4 3 1/4 3 1/4 3 3/4 3 3/4 3 3/4 3 3/4 3 3/4 3 3/4 3 3/4
3 3/4 3 3/4 3 3/4 3 3/4 3 3/4 3 3/4 3 3/4 3 3/4 3 3/4 3 3/4 3 3/4 3 3/4 4 1/4 4 1/4 4 1/4 4 1/4 4 1/4
1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4
0.250.360.480.64
0.830.881.131.34
1.511.742.002.22
2.282.402.562.66
3.303.403.443.74
3.804.064.564.74
4.965.205.145.44
5.645.906.086.30
6.506.646.967.06
7.588.588.228.48
9.289.229.889.70
10.2410.4811.0010.93
11.5012.0011.8212.32
13.0018.1619.4821.00
24.7425.5032.0032.9242.00
H50A12H50A13H50A14H50A15
H50A16H50A17H50A18H50A19
H50A20H50A21H50A22H50A23
H50A24H50A25H50A26H50A27
H50A28H50A29H50A30H50A31
H50A3250A3350A3450A35
50A3650A3750A3850A39
50A4050A4150A4250A43
50A4450A4550A4650A47
50A4850A4950A5050A51
50A5250A5350A5450A55
50A5650A5750A5850A59
50A6050A7050A7250A76
50A8050A8450A9550A9650A112
5/8 5/8 5/8 5/8
5/8 5/8 5/8 5/8
3/4 3/4 3/4 3/4
23/32 23/32 23/32 23/32
23/32 23/32 23/32 23/32
23/32 23/32 23/32 23/32
23/32 23/32 23/32 23/32
23/32 23/32 23/32 23/32
23/32 23/32 15/16 15/16
15/16 15/16 15/16 15/16
15/16 15/16 15/16 15/16
15/16 15/16 15/16 15/16
15/16 15/16 15/16 15/16
15/16 15/16 15/16 15/16 15/16
0.30.40.50.5
0.70.80.90.9
1.11.11.31.4
1.51.61.72.0
2.02.42.52.8
2.73.13.23.3
3.84.04.14.4
4.54.95.05.2
5.45.96.46.5
6.67.17.17.3
8.08.18.38.6
8.99.4
10.310.5
10.814.015.220.1
21.022.127.027.437.7
Sprockets with “H” prefix have hardened teeth.
* Has a recessed groove in the hub for chain clearance.
Maximum bores shown will accommo-date a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
TYPE A
TYPE B
OutsideDiameter
.343Nominal
HubDiameter
LengthThru Bore
.343Nominal
OutsideDiameter
Superior Materials Make Superior Products30
All dimensions in inches.
Single - Bored to Size — Keyway and 2 Setscrews
No.of
Teeth Catalog Number
Diameters
Length Thru Bore
Approx.Weight(lbs.) Stock Finished Bore Includes Keyway and 2 Setscrews
Outside Diameters
Ptich Diameter
9 10 11 12 13
14 15 16 17 18
19 20 21 22 23
24 25 26 27 28
29 30 31 32 33
34 35 36 37 38
39 40 41 42 43
44 45 46 47 48
49 50 51 52 53
54 55 56 57 58
59 60 70 72 80
84 96 112
H50BS9 H50BS10 H50BS11 H50BS12 H50BS13
H50BS14 H50BS15 H50BS16 H50BS17 H50BS18
H50BS19 H50BS20 H50BS21 H50BS22 H50BS23
H50BS24 H50BS25 H50BS26 H50BS27 H50BS28
H50BS29 H50BS30 50BS31 50BS32 50BS33
50BS34 50BS35 50BS36 50BS37 50BS38
50BS39 50BS40 50BS41 50BS42 50BS43
50BS44 50BS45 50BS46 50BS47 50BS48
50BS49 50BS50 50BS51 50BS52 50BS53
50BS54 50BS55 50BS56 50BS57 50BS58
50BS59 50BS60 50BS70 50BS72 50BS80
50BS84 50BS96 50BS112
2.09 2.30 2.50 2.71 2.91
3.11 3.32 3.52 3.72 3.92
4.12 4.32 4.52 4.72 4.92
5.12 5.32 5.52 5.72 5.92
6.12 6.32 6.52 6.72 6.92
7.12 7.32 7.52 7.72 7.92
8.12 8.32 8.52 8.72 8.91
9.11 9.31 9.51 9.71 9.91
10.11 10.31 10.51 10.71 10.91
11.11 11.31 11.50 11.70 11.90
12.10 12.30 14.29 14.69 16.28
17.08 19.47 22.65
1.8282.0232.2192.4152.612
2.8093.0063.2043.4013.599
3.7983.9954.1944.3924.590
4.7884.9875.185 5.3845.582
5.7815.9796.1786.3766.575
6.7746.9737.1717.3707.569
7.7687.9668.1658.3648.563
8.7618.9609.1599.3589.556
9.7559.954
10.15310.35110.550
10.74910.94811.14711.34611.544
11.74311.94213.93114.32915.919
16.71519.10222.284
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4
.30
.30
.60
.70
.80
1.00 1.20 1.45 1.60 1.90
2.00 2.10 2.25 2.40 2.50
3.00 3.10 3.30 3.46 3.60
3.78 3.90 4.46 4.70 4.92
5.06 5.30 5.50 5.62 5.80
6.02 6.20 6.45 6.68 6.99
7.30 8.00 8.51 8.76 9.03
9.33 9.63 9.81 9.99
10.37
10.75 11.08 11.41 11.75 12.08
12.41 13.50 17.81 19.13 24.39
25.15 32.57 41.65
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4
7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8
1111
11111
11111
11111
11111
11111
11111
11111
11111
11111
11111
111
1 1/81 1/8
1 1/81 1/81 1/81 1/81 1/8
1 1/81 1/81 1/81 1/81 1/8
1 1/81 1/81 1/81 1/81 1/8
1 1/81 1/81 1/81 1/81 1/8
1 1/81 1/81 1/81 1/81 1/8
1 1/81 1/8 1 1/81 1/81 1/8
1 1/81 1/81 1/81 1/81 1/8
1 1/81 1/81 1/81 1/81 1/8
1 1/81 1/81 1/81 1/81 1/8
1 1/81 1/81 1/81 1/81 1/8
1 1/81 1/81 1/8
1 3/161 3/16
1 3/161 3/161 3/161 3/161 3/16
1 3/161 3/161 3/161 3/161 3/16
1 3/161 3/161 3/161 3/161 3/16
1 3/161 3/161 3/161 3/161 3/16
1 3/161 3/161 3/161 3/161 3/16
1 3/161 3/161 3/161 3/161 3/16
1 3/161 3/161 3/161 3/161 3/16
1 3/161 3/161 3/161 3/161 3/16
1 3/161 3/161 3/161 3/161 3/16
1 3/161 3/161 3/161 3/161 3/16
1 3/161 3/161 3/16
1 1/41 1/4
1 1/41 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/41 1/4
1 1/41 1/41 1/4
1 3/81 3/81 3/81 3/8
1 3/81 3/81 3/81 3/81 3/8
1 3/81 3/81 3/81 3/81 3/8
1 3/81 3/81 3/81 3/81 3/8
1 3/81 3/81 3/81 3/81 3/8
1 3/81 3/81 3/81 3/81 3/8
1 3/81 3/81 3/81 3/81 3/8
1 3/81 3/81 3/81 3/81 3/8
1 3/81 3/81 3/81 3/81 3/8
1 3/81 3/81 3/81 3/81 3/8
1 3/81 3/81 3/8
1 7/161 7/161 7/161 7/16
1 7/161 7/161 7/161 7/161 7/16
1 7/161 7/161 7/161 7/161 7/16
1 7/161 7/161 7/161 7/161 7/16
1 7/161 7/161 7/161 7/161 7/16
1 7/161 7/161 7/161 7/161 7/16
1 7/161 7/161 7/161 7/161 7/16
1 7/161 7/161 7/161 7/161 7/16
1 7/161 7/161 7/161 7/161 7/16
1 7/161 7/161 7/161 7/161 7/16
1 7/161 7/161 7/16
1 1/21 1/21 1/21 1/2
1 1/21 1/21 1/21 1/21 1/2
1 1/21 1/21 1/21 1/21 1/2
1 1/21 1/21 1/21 1/21 1/2
1 1/21 1/21 1/21 1/21 1/2
1 1/21 1/21 1/21 1/21 1/2
1 1/21 1/21 1/21 1/21 1/2
1 1/21 1/21 1/21 1/21 1/2
1 1/21 1/21 1/21 1/21 1/2
1 1/21 1/21 1/21 1/21 1/2
1 1/21 1/21 1/2
1 5/81 5/81 5/8
1 5/81 5/8
1 3/41 3/41 3/4
1 3/41 3/41 3/41 3/41 3/4
1 3/41 3/41 3/41 3/41 3/4
1 3/41 3/41 3/41 3/41 3/4
1 3/41 3/41 3/41 3/41 3/4
1 3/41 3/41 3/41 3/41 3/4
1 3/41 3/41 3/41 3/41 3/4
1 3/41 3/41 3/4
1 15/161 15/161 15/16
1 15/161 15/161 15/161 15/161 15/16
1 15/161 15/161 15/161 15/161 15/16
1 15/161 15/161 15/161 15/161 15/16
1 15/161 15/161 15/161 15/161 15/16
1 15/161 15/161 15/161 15/161 15/16
1 15/161 15/161 15/161 15/161 15/16
1 15/161 15/161 15/16
Hub diameters vary to suit different bore sizes. Sprockets with “H” prefix have hardened teeth.
KEYWAY IS ON CENTER LINE OF TOOTH.
50 Sprockets5/8” Pitch
LengthThru Bore
.459Nominal
www.BlackStarPT.com 31
All dimensions in inches.
E
.284Nominal
OutsideDiameter
C
Single - Type C No.of
Teeth Catalog Number
Diameters Bore Hub Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
12 13 14 15 16
17 18 19 20
H50C12 H50C13 H50C14 H50C15 H50C16
H50C17 H50C18 H50C19 H50C20
2.71 2.91 3.11 3.32 3.52
3.72 3.92 4.12 4.32
2.4152.6122.8093.0063.204
3.4013.5993.7983.995
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 3⁄4 3⁄4
1 1⁄4 1 5⁄16 1 7⁄16 1 1⁄2 1 3⁄4
1 7⁄8 1 7⁄8 2 2
2 *1 7⁄8 2 1⁄8 2 3⁄8 2 1⁄2
2 47⁄64 2 15⁄16 3 5⁄64 3
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1.25 1.47 1.69 1.94 2.42
2.75 3.25 3.87 4.40
* Has a recessed groove in the hub for chain clearance.
HubDiameter
LengthThru Bore
.343Nominal
OutsideDiameter
50 Sprockets5/8” Pitch
Double Single - Type A No. of
Teeth Catalog Number
Diameters Bore
E
Approx. Weight(lbs.)
Outside Diameter
Pitch Diameter Minimum Maximum
15 16 17 18 19
20 21 22 23 24
DS50A15H DS50A16H DS50A17HDS50A18H DS50A19H
DS50A20HDS50A21HDS50A22HDS50A23HDS50A24H
3.32 3.52 3.72 3.92 4.12
4.32 4.52 4.72 4.92 5.12
3.006 3.204 3.401 3.599 3.797
3.995 4.194 4.392 4.590 4.788
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
5⁄8 5⁄8 5⁄8 5⁄8 5⁄8
1 1⁄2 1 11⁄16 1 3⁄4 1 7⁄8 2 1⁄16
2 1⁄4 2 1⁄4 2 7⁄16 2 5⁄8 2 3⁄4
2 3⁄8 2 31⁄64 2 11⁄16 2 57⁄64 3 5⁄64
3 9⁄32 3 31⁄64 3 11⁄16 3 57⁄64 4 5⁄64
2.1 2.4 2.9 3.3 3.7
4.2 4.8 5.3 5.8 6.3
Sprockets with “H” prefix have hardened teeth.
TYPE C TYPE A
Superior Materials Make Superior Products32
All dimensions in inches.
Double Single - TL Style No. of
Teeth Catalog Number Bushing
Diameters
Type
Bore Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter Minimum Maximum E L2
BushingOnly
Sprocket Only
16 17 18 19
20 21 23 24
DS50ATL16H DS50ATL17H DS50ATL18H DS50ATL19H
DS50ATL20H DS50ATL21H DS50ATL23H DS50ATL24H
1215 1615 1615 1615
1615 2012 2012 2012
3.52 3.72 3.92 4.12
4.32 4.52 4.92 5.12
3.204 3.401 3.599 3.797
3.995 4.194 4.590 4.788
A A A A
A A A A
1⁄2 1⁄2 1⁄2 1⁄2
1⁄2 1⁄2 1⁄2 1⁄2
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 2 2 2
2 31⁄64 2 11⁄16 2 57⁄64 3 5⁄64
3 9⁄32 3 31⁄64 3 57⁄64 4 5⁄64
1.51.51.51.5
1.51.251.251.25
0.60.90.90.9
0.91.41.41.4
3.0 1.8 2.2 2.7
5.0 3.3 3.7 4.1
Double Single - Split Taper Style No.of
Teeth Catalog Number
Bushing Size
Diameters
Type
Bore Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter Minimum Maximum
E L2
Bushing Only
Sprocket Only
17 19 21 23 24
DS50H17H DS50P19H DS50P21H DS50P23H DS50P24H
H P1 P1 P1 P1
3.72 4.12 4.52 4.92 5.12
3.401 3.797 4.194 4.590 4.788
B* B B B B
3⁄8 1⁄2 1⁄2 1⁄2 1⁄2
11⁄2 13⁄4 13⁄4 13⁄4 13⁄4
2 11/163 5/163 31/643 57/644 5/64
2 9⁄32 2 17⁄32 2 17⁄32 2 17⁄32 2 17⁄32
0.81.31.31.31.3
2.3 2.8 3.8 4.6 5.0
Sprockets with “H” suffix have hardened teeth.
*No External Key for H Bushing.
TYPE A TYPE B
50 Sprockets5/8” Pitch
1.656.343
Nominal
E2L
1.313
OutsideDiameter
1.656.343
Nominal
E2L
1.313
OutsideDiameter
TYPE 4
TYPE 3
0.343Nominal
O.L.
H
P
C L
OutsideDiameter
C L
P
H
0.343NominalO.L.
OutsideDiameter
Drawings in this box are for the table on page 35.
www.BlackStarPT.com 33
All dimensions in inches.
50 Sprockets5/8” Pitch
Single - Split Taper Style
No.of Teeth
Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
Bushing Only
Sprocket Only
13 14 15 15 16
16 17 17 18 18
19 19 20 20 21
21 22 22 23 23
23 24 24 24 25
25 25 26 26 26
27 27 27 28 28
28 29 30 30 30
31 32 32 32 33
33 34 34 35 35
35 36 36 36 37
38 38 39 40 40
41 42 44 45 47
48 50 54 56 60
70 72 80 84 96
112
H50H13 H50H14 H50H15 H50P15 H50H16 H50P16 H50H17 H50P17 H50H18 H50P18 H50H19 H50P19 H50H20 H50P20 H50H21 H50P21 H50H22 H50P22 H50H23 H50P23 H50Q23 H50H24 H50P24 H50Q24 H50H25 H50P25 H50Q25 H50H26 H50P26 H50Q26 H50H27 H50P27 H50Q27 H50H28 H50P28 H50Q28 H50P29 H50H30 H50P30 H50Q30 50P31 50H32 50P32 50Q32 50H33 50P33 50H34 50P34 50H35 50P35 50Q35 50H36 50P36 50Q36 50Q37 50H38 50Q38 50Q39 50H40 50Q40 50Q41 50Q42 50Q44 50Q45 50Q47 50Q48 50Q50 50Q54 50Q56 50Q60 50Q70 50Q72 50Q80 50Q84 50Q96 50Q112
H H H P1 H P1 H P1 H P1 H P1 H P1 H P1 H P1 H P1
Q1 H P1 Q1 H
P1 Q1 H P1 Q1
H P1 Q1 H P1
Q1 P1 H P1 Q1
P1 H P1 Q1 H
P1 H P1 H P1
Q1 H P1 Q1 Q1
H Q1 Q1 H Q1
Q1 Q1 Q1 Q1 Q1
Q1 Q1 Q1 Q1 Q1
Q1 Q1 Q1 Q1 Q1 Q1
2.91 3.11 3.32 3.32 3.52
3.52 3.72 3.72 3.92 3.92
4.12 4.12 4.32 4.32 4.52
4.52 4.72 4.72 4.92 4.92
4.92 5.12 5.12 5.12 5.32
5.32 5.32 5.52 5.52 5.52
5.72 5.72 5.72 5.92 5.92
5.92 6.12 6.32 6.32 6.32
6.52 6.72 6.72 6.72 6.92
6.92 7.12 7.12 7.32 7.32
7.32 7.52 7.52 7.52 7.72
7.92 7.92 8.12 8.32 8.32
8.52 8.72 9.11 9.31 9.71
9.91 10.31 11.11 11.50 12.30
14.29 14.69 16.28 17.08 19.47 22.65
2.612 2.809 3.006 3.006 3.204
3.204 3.401 3.401 3.599 3.599
3.797 3.797 3.995 3.995 4.194
4.194 4.392 4.392 4.590 4.590
4.590 4.788 4.788 4.788 4.987
4.987 4.987 5.185 5.185 5.185
5.384 5.384 5.384 5.582 5.582
5.582 5.781 5.979 5.979 5.979
6.178 6.376 6.376 6.376 6.575
6.575 6.774 6.774 6.972 6.972
6.972 7.171 7.171 7.171 7.370
7.569 7.569 7.767 7.966 7.966
8.165 8.363 8.761 8.960 9.357
9.556 9.954
10.749 11.147 11.942
13.931 14.329 15.920 16.715 19.102 22.285
3 3 3 4 3 4 3 4 3 4
3 4 3 4 3
4 3 4 3 4
4 3 4 4 3
4 4 3 4 4
3 4 4 3 4
4 4 3 4 4
4 3 4 4 3
4 3 4 3 4
4 3 4 4 4
3 4 4 3 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4 4
1 1/2 1 1/2 1 1/2 1 3/4 1 1/2 1 3/4 1 1/2 1 3/4 1 1/2 1 3/4
1 1/2 1 3/4 1 1/2 1 3/4 1 1/2
1 3/4 1 1/2 1 3/4 1 1/2 1 3/4
2 11/16 1 1/2 1 3/4 2 11/16 1 1/2
1 3/4 2 11/16 1 1/2 1 3/4 2 11/16
1 1/2 1 3/4 2 11/16 1 1/2 1 3/4
2 11/16 1 3/4 1 1/2 1 3/4 2 11/16
1 3/4 1 1/2 1 3/4 2 11/16 1 1/2
1 3/4 1 1/2 1 3/4 1 1/2 1 3/4
2 11/16 1 1/2 1 3/4 2 11/16 2 11/16
1 1/2 2 11/16 2 11/16 1 1/2 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16 2 11/16 2 11/16
1 21/32 1 19/32 1 1/2 2 3/16 1 1/2
2 3/16 1 1/2 2 3/16 1 1/2 2 3/16
1 1/2 2 3/16 1 1/2 2 3/16 1 1/2
2 3/16 1 1/2 2 3/16 1 1/2 2 3/16
2 25/32 1 1/2 2 3/16 2 25/32 1 1/2
2 3/16 2 25/32 1 1/2 2 3/16 2 25/32
1 1/2 2 3/16 2 25/32 1 1/2 2 3/16
2 25/32 2 3/16 1 1/2 2 3/16 2 25/32
2 3/16 1 1/2 2 3/16 2 25/32 1 1/2
2 3/16 1 1/2 2 3/16 1 1/2 2 3/16
2 25/32 1 1/2 2 3/16 2 25/32 2 25/32
1 1/2 2 25/32 2 25/32 1 1/2 2 25/32
2 25/32 2 25/32 2 25/32 2 25/32 2 25/32
2 25/32 2 25/32 2 25/32 2 25/32 2 25/32
2 25/32 2 25/32 2 25/32 2 25/32 2 25/32 2 25/32
1 1/4 1 1/4 1 1/4 1 15/16 1 1/4
1 15/16 1 1/4 1 15/16 1 1/4 1 15/16
1 1/4 1 15/16 1 1/4 1 15/16 1 1/4
1 15/16 1 1/4 1 15/16 1 1/4 1 15/16
2 1/2 1 1/4 1 15/16 2 1/2 1 1/4
1 15/16 2 1/2 1 1/4 1 15/16 2 1/2
1 1/4 1 15/16 2 1/2 1 1/4 1 15/16
2 1/2 1 15/16 1 1/4 1 15/16 2 1/2
1 15/16 1 1/4 1 15/16 2 1/2 1 1/4
1 15/16 1 1/4 1 15/16 1 1/4 1 15/16
2 1/2 1 1/4 1 15/16 2 1/2 2 1/2
1 1/4 2 1/2 2 1/2 1 1/4 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
7/32 5/32 1/16 0 1/16 0 1/16 0 1/16 0
1/16 0 1/16 0 1/16 0 1/16 0 1/16 0
0 1/16 0 0 1/16 0 0 1/16 0 0
1/16 0 0 1/16 0 0 0 1/16 0 0
0 1/16 0 0 1/16
0 1/16 0 1/16 0
0 1/16 0 0 0
1/16 0 0 1/16 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0 0
2 1/2 2 1/2 2 1/2 3 2 1/2
3 2 1/2 3 2 1/2 3
2 1/2 3 2 1/2 3 2 1/2
3 2 1/2 3 2 1/2 3 4 1/8 2 1/2 3 4 1/8 2 1/2
3 4 1/8 2 1/2 3 4 1/8
2 1/2 3 4 1/8 2 1/2 3
4 1/8 3 2 1/2 3 4 1/8
3 2 1/2 3 4 1/8 2 1/2
3 2 1/2 3 2 1/2 3
4 1/8 2 1/2 3 4 1/8 4 1/8
2 1/2 4 1/8 4 1/8 2 1/2 4 1/8
4 1/8 4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8
1 1/8 1 1/16 31/32 1 19/32 31/32 1 19/32 31/32 1 19/32 31/32 1 19/32
31/32 1 19/32 31/32 1 19/32 31/32
1 19/32 31/32 1 19/32 31/32 1 19/32
2 5/32 31/32 1 19/32 2 5/32 31/32
1 19/32 2 5/32 31/32 1 19/32 2 5/32
31/32 1 19/32 2 5/32 31/32 1 19/32
2 5/32 1 19/32 31/32 1 19/32 2 5/32
1 19/32 31/32 1 19/32 2 5/32 31/32
1 19/32 31/32 1 19/32 31/32 1 19/32
2 5/32 31/32 1 19/32 2 5/32 2 5/32
31/32 2 5/32 2 5/32 31/32 2 5/32
2 5/32 2 5/32 2 5/32 2 5/32 2 5/32
2 5/32 2 5/32 2 5/32 2 5/32 2 5/32
2 5/32 2 5/32 2 5/32 2 5/32 2 5/32 2 5/32
0.80.80.81.30.8
1.30.81.30.81.3
0.81.30.81.30.8
1.30.81.30.81.3
3.50.81.33.50.8
1.33.50.81.33.5
0.81.33.50.81.3
3.51.30.81.33.5
3.50.81.33.50.8
1.30.83.50.81.3
3.50.81.33.53.5
0.83.53.50.83.5
3.53.53.53.53.5
3.53.53.53.53.5
3.53.53.53.53.53.5
0.6 0.6 0.8 1.1 0.9
1.4 1.0 1.4 1.1 1.8
1.3 1.8 1.5 2.0 1.4
2.1
1.5 2.2 1.7 2.4
3.2 1.8 2.6 3.5 1.9
2.7
3.6 2.0 2.8 3.7
2.2 2.9 3.8 2.5 3.0
4.0 3.4 2.9 3.6 5.6
3.6
3.2 3.9 6.1 3.4
4.1
3.7 4.3 3.8 4.3
6.8 4.0 4.8 6.8 7.0
4.4 7.4 7.6 4.8 8.0
8.2 8.3 8.6 9.0 9.3
9.6
9.8 11.3 12.3 13.3
16.9 18.1 21.1 24.3 29.8 39.3
Sprockets with “H” suffix have hardened teeth.
Superior Materials Make Superior Products34
All dimensions in inches.
50 Sprockets5/8” PitchSingle - QD Style
No.of
TeethCatalogNumller Bushing
Diameters
TypeMaximum
Bore
DImensions Approx. Welght (lbs.)
OutsldeDiameter
PitchDiameter L1 L2 C Y G X
BushingOnly
SprocketOnly
121314
151617
181920
212223
242526
272830
323536
404245
485460
707280
8496112
H50JA12H50JA13H50JA14
H50JA15H50JA16H50SH17
H50SH18H50SH19H50SDS20
H50SDS21H50SDS22H50SDS23
H50SDS24H50SDS25H50SDS26
H50SDS27H50SDS28H50SDS30
50SDS3250SDS3550SDS36
50SDS4050SDS4250SDS45
50SDS4850SK5450SK60
50SK7050SK7250SF80
50SF8450SF9650SF112
JAJAJA
JAJASH
SHSHSDS
SDSSDSSDS
SDSSDSSDS
SDSSDSSDS
SDSSDSSDS
SDSSDSSDS
SDSSKSK
SKSKSF
SFSFSF
2.712.913.11
3.323.523.72
3.924.124.32
4.524.724.92
5.125.325.52
5.725.926.32
6.727.327.52
8.328.729.31
9.9111.1112.30
14.2914.6916.28
17.0819.4722.65
2.4152.6122.803
3.0063.2043.401
3.5993.7973.995
4.1944.3924.590
4.7884.9875.185
5.3845.5825.979
6.3766.9727.171
7.9668.3638.960
9.55610.74911.942
13.93114.32915.920
16.71519.10222.285
BBB
BBB
BBB
BBB
BBB
BBB
BBB
BBB
BBB
BBB
BBB
1 1/41 1/41 1/4
1 1/41 1/41 5/8
1 5/81 5/82
222
222
222
222
222
22 5/82 5/8
2 5/82 5/82 15/16
2 15/162 15/162 15/16
1 1/81 1/81 1/8
1 1/81 1/81 7/16
1 7/161 7/161 1/2
1 1/21 1/21 1/2
1 1/21 1/21 1/2
1 1/21 1/21 1/2
1 1/21 1/21 1/2
1 1/21 1/21 1/2
1 1/22 1/82 1/8
2 1/82 1/82 1/4
2 1/42 1/42 1/4
1 1/81 1/81 1/8
1 1/81 1/81 7/16
1 7/161 7/161 1/2
1 1/21 1/21 1/2
1 1/21 1/21 1/2
1 1/21 1/21 1/2
1 1/21 1/21 1/2
1 1/21 1/21 1/2
1 1/22 1/82 1/8
2 1/82 1/82 1/4
2 1/42 1/42 1/4
2 1/162 1/162 1/16
2 1/162 1/162 11/16
2 11/162 11/163 3/16
3 3/163 3/163 3/16
3 3/163 3/163 3/16
3 3/163 3/163 3/16
3 3/163 3/163 3/16
3 3/163 3/163 3/16
3 3/163 7/83 7/8
3 7/83 7/84 5/8
4 5/84 5/84 5/8
21/3221/3221/32
21/3221/3229/32
29/3229/3231/32
31/3231/3231/32
31/3231/3231/32
31/3231/3231/32
31/3231/3231/32
31/3231/3231/32
31/321 17/321 17/32
1 17/321 17/321 21/32
1 21/321 21/321 21/32
9/329/329/32
9/329/3215/32
15/3215/3213/32
13/3213/3213/32
13/3213/3213/32
13/3213/3213/32
13/3213/3213/32
13/3213/3213/32
13/3229/3229/32
29/3229/3229/32
29/3229/3229/32
5/85/85/8
5/85/813/16
13/1613/163/4
3/43/43/4
3/43/43/4
3/43/43/4
3/43/43/4
3/43/43/4
3/43/43/4
3/43/43/4
3/43/43/4
0.90.90.9
0.90.91.0
1.01.01.0
1.01.01.0
1.01.01.0
1.01.01.0
1.01.01.0
1.01.01.0
1.02.02.0
2.02.03.0
3.03.03.0
0.30.40.5
0.60.70.8
1.01.21.2
1.31.41.6
1.71.82.0
2.12.32.6
3.03.63.6
4.75.45.9
6.79.7
11.9
15.516.419.9
23.029.940.1
Sprockets with “H” prefix have hardened teeth.
OutsideDiameter
L1
Y
G
C
XL2
0.343Nominal
TYPE B
www.BlackStarPT.com 35
All dimensions in inches.
TYPE B
50 Sprockets5/8” Pitch
Single - TL Style
No.of
Teeth
Catalog Number
Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L
C
Bushing Only
SprocketOnly
12 13 14 15
16 17 18 19
20 21 22 23
24 25 26 27
28 30 32 35
36 40 42 45
48 54 60 70
72 80 84 96
112
H50BTL12 H50BTL13 H50BTL14 H50BTL15 H50BTL16 H50BTL17 H50BTL18 H50BTL19 H50BTL20 H50BTL21 H50BTL22 H50BTL23 H50BTL24 H50BTL25 H50BTL26 H50BTL27 H50BTL28 H50BTL30 50BTL32 50BTL35 50BTL36 50BTL40 50BTL42 50BTL45 50BTL48 50BTL54 50BTL60 50BTL70 50BTL72 50BTL80 50BTL84 50BTL96 50BTL112
1008 1008 1008 1210
1610 1610 1610 1610
1610 1610 1610 2012
2012 2012 2012 2012
2012 2012 2012 2012
2012 2012 2012 2012
2012 2012 2012 2517
2517 2517 2517 2517 2517
2.71 2.91 3.11 3.32
3.52 3.72 3.92 4.12
4.32 4.52 4.72 4.92
5.12
5.32 5.52 5.72
5.92 6.32 6.72 7.32
7.52
8.32 8.72 9.31
9.91
11.11 12.30 14.29
14.69
16.28 17.09 19.47 22.65
2.415 2.612 2.809 3.006
3.204 3.401 3.599 3.797
3.995 4.193 4.392 4.590
4.788 4.987 5.185 5.384
5.582 5.979 6.376 6.972
7.171 7.966 8.363 8.960
9.556 10.749 11.942 13.931
14.329
15.920 16.715 19.102 22.285
BBBB
BBBB
BBBB
BBBB
BBBB
BBBB
BBBB
BBBBB
1 1 1 1 1⁄4 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
7⁄8 7⁄8 7⁄8 1 1 1 1 1 1 1 1 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 15⁄16 1 13⁄16 1 15⁄16 2 15⁄32 2 25⁄32 2 25⁄32 2 25⁄32 3 3 1⁄4 3 1⁄2 3 1⁄2 3 7⁄8 4 4 4 4 4 3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16 4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4
0.3 0.3 0.3 0.6
0.9 0.9 0.9 0.9
0.9 0.9 0.9 1.7
1.7 1.7 1.7 1.7
1.7 1.7 1.7 1.7
1.7 1.7 1.7 1.7
1.7 1.7 1.7 3.5
3.5 3.5 3.5 3.5 3.5
0.5 0.5 0.6 0.7
0.7
0.8 0.9 1.3
1.6
1.5 1.6 2.0
2.2 2.4 2.5 2.6
2.8
3.2 3.6 4.2
4.3
5.2 5.9 6.5
7.3
9.0 10.8 14.0
15.5 19.5 22.5 29.0 38.7
Sprockets with “H” prefix have hardened teeth.
C
L
.343Nominal
Superior Materials Make Superior Products36
All dimensions in inches.
D50 Sprockets5/8” PitchDouble - Split Taper Style
No.of
TeethCatalogNumber Bushing
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
OutsideDiameter
Pitch Diameter OL L C H P
BushingOnly
SprocketOnly
1415161718
1920212223
2425262728
3032353640
4245485254
6072768495
96102112
D50H14HD50P15HD50P16HD50P17HD50P18H
D50P19HD50P20HD50P21HD50P22HD50P23H
D50Q24HD50Q25HD50Q26HD50Q27HD50Q28H
D50Q30HD50Q32D50Q35D50Q36D50Q40
D50Q42D50Q45D50Q48D50Q52D50Q54
D50Q60D50Q72D50Q76D50Q84D50R95
D50R96D50R102D50R112
HP1P1P1P1
P1P1P1P1P1
Q1Q1Q1Q1Q1
Q1Q1Q1Q1Q1
Q1Q1Q1Q1Q1
Q1Q1Q1Q1R1
R1R1R1
3.113.323.523.723.92
4.124.324.524.724.92
5.125.325.525.725.92
6.326.727.327.528.32
8.729.319.91
10.7111.11
12.3014.6915.4917.0819.27
19.4720.6622.65
2.8093.0063.2043.4013.599
3.7973.9954.1944.3924.590
4.7884.9875.1855.3845.582
5.9796.3766.9727.1717.966
8.3638.9609.556
10.35110.749
11.94214.32915.12416.71518.903
19.10220.29522.285
1116121212
1212121212
1212121212
1212121212
1212121212
1212121212
121212
1 1/21 3/41 3/41 3/41 3/4
1 3/41 3/41 3/41 3/41 3/4
2 11/162 11/162 11/162 11/162 11/16
2 11/162 11/162 11/162 11/162 11/16
2 11/162 11/162 11/162 11/162 11/16
2 11/162 11/162 11/162 11/163 3/4
3 3/43 3/43 3/4
2 5/163 7/162 11/162 11/162 11/16
2 3/162 3/162 3/162 3/162 3/16
2 25/322 25/322 25/322 25/322 25/32
2 25/322 25/322 25/322 25/322 25/32
2 25/322 25/322 25/322 25/322 25/32
2 25/322 25/322 25/322 25/323 5/32
3 5/323 5/323 5/32
1 1/41 15/161 15/161 15/161 15/16
1 15/161 15/161 15/161 15/161 15/16
2 1/22 1/22 1/22 1/22 1/2
2 1/22 1/22 1/22 1/22 1/2
2 1/22 1/22 1/22 1/22 1/2
2 1/22 1/22 1/22 1/22 7/8
2 7/82 7/82 7/8
7/81 1/41/21/21/2
00000
00000
00000
00000
00000
000
2 1/23333
33333
4 1/84 1/84 1/84 1/84 1/8
4 1/84 1/84 1/84 1/84 1/8
4 1/84 1/84 1/84 1/84 1/8
4 1/84 1/84 1/84 1/85 3/8
5 3/85 3/85 3/8
1 3/321 13/321 13/321 13/321 13/32
29/3229/3229/3229/3229/32
1 15/321 15/321 15/321 15/321 15/32
1 15/321 15/321 15/321 15/321 15/32
1 15/321 15/321 15/321 15/321 15/32
1 15/321 15/321 15/321 15/322 3/32
2 3/322 3/322 3/32
0.81.31.31.31.3
1.31.31.31.31.3
3.53.53.53.53.5
3.53.53.53.53.5
3.53.53.53.53.5
3.53.53.53.57.5
7.57.57.5
1.22.01.62.12.5
2.02.52.83.23.6
4.04.55.35.96.3
7.58.5
10.411.013.6
15.017.520.423.323.3
25.543.146.056.772.3
80.784.593.2
O.L.
OutsideDiameter
0.332
1.045
P
H
C L
TYPE 11
1.045
0.332
OutsideDiameter
H
O.L.
P
C L
TYPE 12
OL
OutsideDiameter
1.045
C
0.332
L
P
H
TYPE 16
www.BlackStarPT.com 37
All dimensions in inches.
D50 Sprockets5/8” Pitch
Double - Type B
No.of
Teeth Catalog Number
Diameters Bore Hub Approx. Weight (lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
11 12 13 14
15 16 17 18
19 20 21 22
23 24 25 26
30 32 35 36
40 42 45 48
52 54 60 68
72 76 84 95
96 102 112
D50B11H D50B12H D50B13H D50B14H
D50B15H D50B16H D50B17H D50B18H
D50B19H D50B20H D50B21H D50B22H
D50B23H D50B24H D50B25H D50B26H
D50B30HD50B32 D50B35 D50B36
D50B40 D50B42 D50B45 D50B48
D50B52 D50B54 D50B60 D50B68
D50B72 D50B76 D50B84 D50B95
D50B96 D50B102 D50B112
2.50 2.71 2.91 3.11
3.32 3.52 3.72 3.92
4.12 4.32 4.52 4.72
4.92 5.12 5.32 5.52
6.32 6.72 7.32 7.52
8.32 8.72 9.31 9.91
10.71 11.11 12.30 13.89
14.69 15.49 17.08 19.27
19.47 20.66 22.65
2.2192.415
2.612 2.809
3.006 3.204 3.401 3.599
3.797 3.995 4.193 4.392
4.590 4.788 4.987 5.185
5.979 6.376 6.972 7.171
7.966 8.363 8.960 9.556
10.35110.74911.94213.533
14.32915.12416.71518.903
19.10220.29622.284
5⁄8 5⁄8 5⁄8 5⁄8
3⁄4 3⁄4 3⁄4 3⁄4
1 1 1 1
1 1 1 1
1 1 1 1 3⁄16
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
1 3⁄16 1 3⁄16 1 5⁄16 1 5⁄16
1 5⁄16 1 5⁄16 1 5⁄16 1 5⁄16
1 5⁄16 1 5⁄16 1 5⁄16
15⁄16 1 1⁄8 1 5⁄16 1 3⁄8
1 1⁄2 1 3⁄4 1 7⁄8 1 15⁄16
2 1⁄8 2 1⁄4 2 3⁄8 2 3⁄8
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 3⁄4
2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4
2 3⁄4 2 3⁄4 3 3
3 3 3 3
3 3 3 5⁄16
1 15⁄32 1 11⁄16 1 7⁄8 2 1⁄16
2 5⁄16 2 1⁄2 2 11⁄16 2 15⁄16
3 1⁄8 3 1⁄4 3 1⁄2 3 9⁄16
3 5⁄8 3 5⁄8 3 5⁄8 3 3⁄4
3 3⁄4 3 3⁄4 3 3⁄4 4
4 4 4 4 1⁄4
4 1⁄4 4 1⁄4 4 1⁄2 4 1⁄2
4 1⁄2 4 1⁄2 4 1⁄2 4 1⁄2
4 1⁄2 4 1⁄2 5 1⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 7⁄8
1 7⁄8 1 7⁄8 1 7⁄8 1 7⁄8
1 7⁄8 1 7⁄8 1 7⁄8 2 1⁄8
2 1⁄8 2 1⁄8 2 1⁄8 2 3⁄8
2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄8
2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄8
2 3⁄8 2 3⁄8 2 3⁄8
1.0 1.3 1.6 1.9
2.2 2.6 3.0 3.6
3.9 4.3 4.9 5.6
6.1 6.5 6.9 7.5
9.4 10.5 12.3 13.9
16.5 17.9 20.324.1
27.429.735.945.0
50.245.651.664.3
67.472.790.2
Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. Sprockets with “H” suffix have hardened teeth.
TYPE B
HubDiameter
LengthThru Bore
.332Nominal
1.045
Superior Materials Make Superior Products38
All dimensions in inches.
1L
2L
X
C
T
Y W P
OutsideDiameter
Double - QD StyleNo.of
TeethCatalogNumber Bushing
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
PitchDiameter L1 L2 C Y P
BushingOnly
SprocketOnly
364248
5254606872
768495
102112
D50SK36D50SK42D50SK48
D50SF52D50SF54D50SF60D50SF68D50SF72
D50SF76D50SF84D50SF95D50SF102D50SF112
SKSKSK
SFSFSFSFSF
SFSFSFSFSF
7.528.729.91
10.7111.1112.3013.8914.69
15.4917.0819.2720.6622.65
7.1718.3639.556
10.35110.74911.94213.53314.329
15.12416.71518.90320.29522.285
CCC
CCCCC
CCCCC
2 5/82 5/82 5/8
2 15/162 15/162 15/162 15/162 15/16
2 15/162 15/162 15/162 15/162 15/16
2 1/82 1/82 1/8
2 15/162 15/162 15/162 15/162 15/16
2 15/162 15/162 15/162 15/162 15/16
2 1/82 1/82 1/8
2 1/42 1/42 1/42 1/42 1/4
2 1/42 1/42 1/42 1/42 1/4
3 7/83 7/83 7/8
4 5/84 5/84 5/84 5/84 5/8
4 5/84 5/84 5/84 5/84 5/8
5/85/85/8
3/43/43/43/43/4
3/43/43/43/43/4
13/6413/6413/64
13/6413/6413/6413/6413/64
13/6413/6413/6413/6413/64
2.02.02.0
3.03.03.03.03.0
3.03.03.03.03.0
9.913.217.9
21.323.229.138.243.3
44.045.958.966.085.3
TYPE C
D50 Sprockets5/8” Pitch
www.BlackStarPT.com 39
All dimensions in inches.
D50 Sprockets5/8” Pitch
Double - TL StyleNo.of
Teeth Catalog Number Bushing
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter L
C
Bushing Only
SprocketOnly
14 15 16 17
18 19 20 21
25 30 36 42
48 52 60 68
76 84 95
102
D50ATL14H D50ATL15H D50ATL16H D50ATL17H
D50ATL18H D50ATL19H D50BTL20H D50BTL21H
D50BTL25H D50BTL30HD50CTL36 D50CTL42
D50CTL48 D50CTL52 D50CTL60 D50CTL68
D50CTL76 D50CTL84 D50CTL95 D50CTL102
1008 1210 1210 1610
1610 1610 2012 2012
2012 2517 2517 2517
2517 2517 2517 2517
2517 2517 2517 2517
3.11 3.32 3.52 3.72
3.92 4.12 4.32 4.52
5.32 6.32 7.52 8.72
9.91 10.71 12.30 13.89
15.47 17.08 19.27 20.66
2.809 3.006 3.204 3.410
3.599 3.797 3.995 4.193
4.987 5.979 7.171
8.363
9.556 10.351 11.942 13.533
15.124 16.715 18.903 20.295
A A A A
A A B B
B B C C
C C C C
C C C C
1 1 1⁄4 1 1⁄4 1 5⁄8
1 5⁄8 1 5⁄8 2 2
2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
7⁄8 1 1 1
1 1 1 1⁄4 1 1⁄4
1 1⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
3 1⁄4 3 1⁄2
4 9⁄32 5 9⁄32 4 1⁄4 4 1⁄4
4 1⁄4 4 3⁄8 4 3⁄8 4 3⁄8 4 3⁄8 4 3⁄8 4 3⁄8 4 3⁄8
0.8 0.9 1.1 1.1
1.3 1.6 1.5 1.9
3.8 7.5 9.4
13.4
18.6 22.2 30.3 39.4
41.2 45.3 58.8 67.1
0.3 0.6 0.6 0.6
0.9 0.9 1.7 1.7
1.7 3.5 3.5 3.5
3.5 3.5 3.5 3.5
3.5 3.5 3.5 3.5
Sprockets with “H” suffix have hardened teeth.
TYPE A TYPE B TYPE C
C
L
.332Nominal
1.045
C
L
.332Nominal
1.045
L
C
.332Nominal
1.045
Superior Materials Make Superior Products40
All dimensions in inches.
T50 Sprockets5/8” Pitch Triple - Split Taper Style
No.of
Teeth Catalog Number Bushing
Diameters
Type
Maximum Bore
Dimensions Appros. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
Bushing Only
SprocketOnly
15 16 17 18 19 20 21 23 24 25
26 28 30 32 35
36 40 42 48 52
60 68 72 76 84
95 102
T50P15H T50P16H T50P17H T50P18H T50P19H
T50P20H T50P21H T50P23H T50Q24H T50Q25H
T50Q26H T50Q28H T50Q30H T50Q32 T50Q35
T50Q36 T50Q40 T50Q42 T50Q48 T50Q52
T50R60 T50R68 T50R72 T50R76 T50R84
T50R95 T50R102
P2 P2 P2 P2 P1
P1 P1 P1 Q1 Q1
Q1 Q1 Q1 Q1 Q1
Q1 Q1 Q1 Q1 Q1
R1 R1 R1 R1 R1
R1 R1
3.32 3.52 3.72 3.92 4.12
4.32 4.52 4.92 5.12 5.32
5.52 5.92 6.32 6.72 7.32
7.52 8.32 8.72 9.91
10.71
12.30 13.89 14.69 15.49 17.08
19.27
20.66
3.006 3.204 3.401 3.599 3.797
3.995 4.194 4.590 4.788 4.987
5.185 5.582 5.979 6.376 6.972
7.171 7.966 8.363 9.556
10.351
11.942 13.533 14.329 15.124 16.715
18.903
20.295
27 22 22 22 24 24 24 24 23 23
23 23 23 23 23
23 23 23 23 23
22 22 22 22 22
22 22
1 3/4 1 3/4 1 3/4 1 3/4 1 3/4
1 3/4 1 3/4 1 3/4 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16 2 11/16
3 3/4 3 3/4 3 3/4 3 3/4 3 3/4
3 3/4 3 3/4
4 1/8 3 3/8 3 3/8 3 3/8 2 5/8 2 5/8 2 5/8 2 5/8 2 25/32 2 25/32
2 25/32 2 25/32 2 25/32 2 25/32 2 25/32
2 25/32 2 25/32 2 25/32 2 25/32 2 25/32
2 5/32 2 5/32 2 5/32 2 5/32 2 5/32
2 5/32 2 5/32
2 15/16 2 15/16 2 15/16 2 15/16 1 15/16 1 15/16 1 15/16 1 15/16 2 1/2 2 1/2
2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
2 7/8 2 7/8 2 7/8 2 7/8 2 7/8
2 7/8 2 7/8
15/16 3/16 3/16 3/16 7/16
7/16 7/16 7/16 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0
3 3 3 3 3 3 3 3 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 4 1/8 4 1/8 4 1/8 4 1/8
5 3/8 5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8
1 3/8 1 3/8 1 3/8 1 3/8 5/8 5/8 5/8 5/8 3/4 3/4
3/4 3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4 3/4
1 1/8 1 1/8 1 1/8 1 1/8 1 1/8
1 1/8 1 1/8
1.51.51.51.51.3
1.31.31.33.53.5
3.53.53.53.53.5
3.53.53.53.53.5
7.57.57.57.57.5
7.57.5
2.5 2.4 2.8 3.4 2.9
3.1 3.5 4.5 4.7 5.0
5.9 7.3 8.8
10.9 13.7
14.6 19.1 21.5 29.6 36.4
48.0
63.5 72.0 81.0
100.0
130.0 151.0
Sprockets with “H” suffix have hardened teeth.
TYPE 22
C
.332
1.758
P
L
OutsideDiameter
H
O.L.
TYPE 23
C L
.332
1.758 P
OutsideDiameter
OL
H
TYPE 27
L
1.758
C
.332P
OutsideDiameter H
O.L.
.3321.758 P
LC
OutsideDiameter
H
OL
TYPE 24
www.BlackStarPT.com 41
All dimensions in inches.
T50 Sprockets5/8” Pitch
Triple - Types B & C
No. of Teeth Catalog Number
Diameters
Type
Bore Hub
Approx. Weight (lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
LengthThru Bore
11 12 13 14
15 16 17 18
19 20 21 22
23 24 25 26
30 35 36 42
48 52 60 68
72 76 84 95
102
T50B11H T50B12H T50B13H T50B14H
T50B15H T50B16H T50B17H T50B18H
T50B19H T50B20H T50B21H T50B22H
T50B23H T50B24H T50B25H T50B26H
T50B30HT50B35 T50B36 T50B42
T50B48 T50B52 T50B60 T50B68
T50C72 T50C76 T50C84 T50C95 T50C102
2.50 2.71 2.91 3.11
3.32 3.52 3.72 3.92
4.12 4.32 4.52 4.72
4.92 5.12 5.32 5.52
6.32 7.32 7.52 8.72
9.91 10.71 12.30 13.89
14.69 15.49 17.08 19.27 20.66
2.2192.4152.6122.809
3.006 3.204 3.410 3.599
3.797 3.995 4.1934.392
4.590 4.788 4.987 5.185
5.9796.9737.1718.165
9.55610.35111.94213.533
14.32915.12416.71518.90320.296
B B B B
B B B B
B B B B
B B B B
B B B B
B B B B
C C C C C
5⁄8 5⁄8 5⁄8 5⁄8
3⁄4 3⁄4 3⁄4 3⁄4
1 1 1 1
1 1 1 1
1 1 1 3⁄16 1 3⁄16
1 3⁄16 1 3⁄16 1 5⁄16 1 5⁄16
1 5⁄16 1 5⁄16 1 5⁄16 1 5⁄16 1 5⁄16
15⁄16 1 1⁄8 1 5⁄16 1 3⁄8
1 1⁄2 1 3⁄4 1 7⁄8 1 15⁄16
2 1⁄8 2 1⁄4 2 3⁄8 2 3⁄8
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 3⁄4 2 3⁄4
2 3⁄4 2 3⁄4 3 3
3 3 3 3 3
1 15⁄32 1 11⁄16 1 7⁄8 2 1⁄16
2 5⁄16 2 1⁄2 2 11⁄16 2 15⁄16
3 1⁄8 3 1⁄4 3 1⁄2 3 9⁄16
3 5⁄8 3 5⁄8 3 5⁄8 3 3⁄4
3 3⁄4 3 3⁄4 4 4
4 4 4 1⁄2 4 1⁄2
4 3⁄4 4 3⁄4 4 3⁄4 4 3⁄4 4 3⁄4
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 5⁄8 2 5⁄8 2 5⁄8
2 5⁄8 2 5⁄8 2 5⁄8 2 5⁄8
2 5⁄8 2 5⁄8 2 3⁄4 2 3⁄4
3 1⁄8 3 1⁄8 3 1⁄8 3 1⁄8
3 1⁄2 3 1⁄2 3 1⁄2 3 3⁄4 3 3⁄4
1.4 1.8 2.32.7
3.23.84.95.1
5.6 6.47.47.9
8.8 9.4
10.711.0
14.219.020.627.5
36.642.556.873.2
54.451.265.374.479.9
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” suffix have hardened teeth.
.332 Nominal
Length Thru Bore
Hub Diameter
1.758
OutsideDiameter
TYPE B
.332 Nominal
Length Thru Bore
Hub Diameter
1.758
OutsideDiameter
TYPE C
Superior Materials Make Superior Products42
All dimensions in inches.
Triple - QD StyleNo.of
Teeth
Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter L1
L2 C X
BushingOnly
SprocketOnly
36 42 48 52
60 68 72 76
84 95
102
E50SK36 E50SK42 E50SK48 E50SF52
E50SF60 E50SF68 E50SF72 E50SF76
E50SF84E50SF95 E50SF102
SK SK SK SF
SF SF SF SF
SF SFSF
7.52 8.72 9.91
10.71
12.30 13.89 14.69 15.49
17.08 19.27 20.66
7.171 8.363 9.556
10.351
11.942 13.533 14.329 15.124
16.715 18.903 20.295
B B B B
B B B1 B1
B1 B1 B1
2 5⁄8 2 5⁄8 2 5⁄8 2 15⁄16
2 15⁄16 2 15⁄16 2 15⁄16 2 15⁄16
2 15⁄16 2 15⁄16 2 15/16
2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄4
2 1⁄4 2 1⁄4 2 1⁄4 2 1⁄4
2 1⁄4 2 1⁄4 2 1/4
2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄4
2 1⁄4 2 1⁄4 2 1⁄4 2 1⁄4
2 1⁄4 2 1⁄4 2 1/4
3 7⁄8 3 7⁄8 3 7⁄8 4 5⁄8
4 5/84 5/84 5/84 5/8
4 5/84 5/84 5/8
1 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/4
1 1/41 1/41 1/4
2.02.02.03.0
3.03.03.03.0
3.03.03.0
12.819.527.628.6
39.150.843.646.9
50.959.366.3
T50 Sprockets5/8” Pitch
C
1.758
L1
0.332Nominal
L2X
Y
TYPE B
L1
L2
0.332Nominal
1.758Y
C
V
X
TYPE B1
www.BlackStarPT.com 43
All dimensions in inches.
* Has a recessed groove in the hub for chain clearance.
Maximum bores shown will accom-modate a standard keyseat and a set-screw over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat. Sprockets with “H” prefix have hardened teeth.
60 Sprockets3/4” Pitch
Single - Type B Single - Type ANo. of
TeethCatalogNumber
Diameters Bore HubApprox.Weight(lbs.)
CatalogNumber
StockBore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
89
1011
12131415
16171819
20212223
24252627
28293031
32333435
36373839
40414243
44454647
48495051
52535455
56575859
60646568
70727680
849096
112
H60B8H60B9H60B10H60B11
H60B12H60B13H60B14H60B15
H60B16H60B17H60B18H60B19
H60B20H60B21H60B22H60B23
H60B24H60B25H60B26H60B27
H60B28H60B29H60B3060B31
60B3260B3360B3460B35
60B3660B3760B3860B39
60B4060B4160B4260B43
60B4460B4560B4660B47
60B4860B4960B5060B51
60B5260B5360B5460B55
60B5660B5760B5860B59
60B6060B6460B6560B68
60B7060B7260B7660B80
60B8460B9060B9660B112
2.262.512.763.00
3.253.493.743.98
4.224.464.704.95
5.195.435.675.91
6.156.396.636.87
7.117.357.597.83
8.078.308.548.78
9.029.269.509.74
9.9810.2210.4610.70
10.9411.1811.4211.65
11.8912.1312.3712.61
12.8513.0913.3313.57
13.8114.0414.2814.52
14.7615.7215.9616.67
17.1517.6318.5819.54
20.4924.9323.3627.18
1.9602.1932.4272.663
2.8983.1343.3713.608
3.8454.0824.3194.557
4.7945.0335.2705.508
5.7465.9846.2226.461
6.6986.9377.1757.413
7.6527.8908.1298.367
8.6068.8449.0839.321
9.5609.798
10.03710.275
10.51410.75210.99111.229
11.46811.70611.94512.183
12.42212.66012.89913.137
13.37613.61513.85314.092
14.33015.28515.52416.240
16.71717.19518.14919.103
20.05821.49122.92226.741
5/8 3/4 3/4 3/4 3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4
3/4 1 1 1
1 1 1 1 1 1 1 1
15/16 15/16 15/16 15/16
15/16 15/16 15/16 15/16
15/16 15/16 15/161 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
5/8 7/8 1 1/8 1 5/16
1 3/8 1 1/2 1 3/4 1 7/8
2 2 1/4 2 3/8 2 3/8
5 5/8 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4 2 3/4
3 1/4 3 5/163 3/4 3 3/4
1 15/32 *1 9/16 *1 15/16 *2 3/8 *
2 11/16 *2 9/162 7/8 3 1/16
3 1/4 3 1/2 3 1/2 3 7/8
4 4 4 4
4 4 4 4
4 4 4 4
4 4 4 4
4 4 4 1/4 4 1/4
4 1/4 4 1/4 4 1/4 4 1/4
4 1/4 4 1/4 4 1/4 4 1/4 4 1/4 4 1/4 4 1/4 4 1/4
4 1/4 4 1/4 4 1/4 4 1/4
4 1/4 4 1/4 4 1/4 4 1/4
4 1/4 4 1/4 4 1/4 4 1/4
4 1/4 4 1/4 4 1/4 4 1/4
4 3/4 5 5 1/2 5 1/2
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 3/4 1 3/4
1 3/4 1 3/4 1 3/4 1 3/4
1 3/4 1 3/4 1 3/41 3/4
1 3/4 2 2 2 2
2 1/4 2 1/4 2 1/4
0.50.61.01.2
1.51.72.02.5
2.83.23.73.9
4.65.05.35.5
5.86.16.46.7
6.97.37.67.7
8.38.48.89.0
9.610.210.811.4
11.512.112.713.0
13.914.014.615.0
15.815.916.717.0
17.918.021.621.1
21.922.322.823.9
25.227.428.930.4
32.034.138.141.9
46.563.263.181.8
H60A10H60A11
H60A12H60A13H60A14H60A15
H60A16H60A17H60A18H60A19
H60A20H60A21H60A22H60A23
H60A24H60A25H60A26H60A27
H60A28H60A29H60A3060A31
60A3260A3360A3460A35
60A3660A3760A3860A39
60A4060A4160A4260A43
60A4460A4560A4660A47
60A4860A4960A5060A51
60A5260A5360A5460A55
60A5660A5760A5860A59
60A6060A6460A6560A68
60A7060A7260A7660A80
60A8460A9060A9660A112
3/4 3/4
3/4 3/4 3/4 3/4
3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4
23/32 23/32 23/32 23/32
23/32 23/32 23/32 23/32
23/32 15/16 15/16 15/16
15/16 15/16 15/16 15/16
15/16 15/16 15/16 15/16
15/16 15/16 15/16 15/16
15/16 15/16 15/16 15/16
15/16 15/16 15/161 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
0.40.5
0.70.80.91.1
1.21.41.61.8
2.12.32.52.7
3.03.33.54.0
4.14.44.85.2
5.55.96.26.8
6.87.57.88.3
8.69.19.89.7
10.811.211.512.3
12.412.914.014.6
14.615.815.917.0
17.617.619.019.2
20.023.023.225.5
27.228.932.335.5
40.243.452.070.8
OutsideDiameter
.459Nominal
TYPE A
HubDiameter
LengthThru Bore
.459Nominal
TYPE B
Superior Materials Make Superior Products44
All dimensions in inches.
60 Sprockets3/4” PitchSingle - Bored to Size — Keyway and 2 Setscrews
No.of
Teeth Catalog Number
Diameter Length
ThruBore
Approx.Weight(Lbs.) Stock Finished Bore Includes Keyway and Setscrews
Outside Diameter
PitchDiameter
9 10 11 12
13 14 15 16
17 18 19 20
21 22 23 24 25
26 27 28 29 30
31 32 33 34 35
36 37 38 39 40
41 42 43 44 45
46 47 48 49 50
51 52 53 54 55
56 57 58 59 60
70 72 80
84 96
112
H60BS9 H60BS10 H60BS11 H60BS12
H60BS13 H60BS14 H60BS15 H60BS16
H60BS17 H60BS18 H60BS19 H60BS20
H60BS21 H60BS22 H60BS23 H60BS24 H60BS25
H60BS26 H60BS27 H60BS28 H60BS29 H60BS30
60BS31 60BS32 60BS33 60BS34 60BS35
60BS36 60BS37 60BS38 60BS39 60BS40
60BS41 60BS42 60BS43 60BS44 60BS45
60BS46 60BS47 60BS48 60BS49 60BS50
60BS51 60BS52 60BS53 60BS54 60BS55
60BS56 60BS57 60BS58 60BS59 60BS60
60BS70 60BS72 60BS80
60BS84 60BS96 60BS112
2.51 2.76 3.00 3.25
3.49 3.74 3.98 4.22
4.46 4.70 4.95 5.19
5.43 5.67 5.91 6.15 6.39
6.63 6.87 7.11 7.35 7.59
7.83 8.07 8.30 8.54 8.78
9.02 9.26 9.50 9.74 9.98
10.22 10.46 10.70 10.94 11.18
11.42 11.65 11.89 12.13 12.37
12.61 12.85 13.09 13.33 13.57
13.81 14.04 14.28 14.52 14.76
17.15 17.63 19.54
20.49 23.36 27.18
2.1932.4272.6632.898
3.1343.3713.6083.845
4.0824.3194.5574.794
5.0335.2705.5085.7465.984
6.2226.4616.6986.9377.175
7.4137.6527.8908.1298.367
8.6068.8449.0839.3219.560
9.79810.03710.27510.51410.752
10.99111.22911.46811.70611.945
12.18312.42212.66012.89913.137
3.37613.61513.85314.09214.330
16.71717.19519.103
20.05822.92226.741
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 2 2
2 2 1⁄4 2 1⁄4
0.6 0.7 0.9 1.3
1.3 1.6 1.7 2.1
2.4 2.6 3.4 3.9
4.4 4.7 5.0 5.3 5.4
5.8 6.3 6.4 6.9 7.1
7.4 7.8 8.2 8.5 8.8
9.2 9.9
10.5 10.9 11.2
11.8 12.4 13.0 13.5 13.8
14.1 14.6 15.4 16.4 17.3
18.3 19.3 20.3 21.0 21.2
21.3 22.2 23.0 23.8 25.0
31.4 33.5 41.2
45.8 62.3 81.0
3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4
7⁄8 7⁄8 7⁄8 7⁄8
7⁄8 7⁄8 7⁄8 7⁄8
1 1 1 1
1 1 1 1
1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
1 3⁄16 1 3⁄16 1 3⁄16
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8
1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8
1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8
1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8
1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8
1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8
1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8
1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8
1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8
1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8
1 3⁄8 1 3⁄8 1 3⁄8
1 3⁄8 1 3⁄8 1 3⁄8
1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16
1 7⁄16 1 7⁄16 1 7⁄16
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2
1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8
1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4
1 15⁄16
1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16
1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16
1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16
1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16
1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16
1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16
1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16
1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16
1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16 1 15⁄16
1 15⁄16 1 15⁄16 1 15⁄16
1 15⁄16 1 15⁄16 1 15⁄16
2 2 2 2 2
2 2 2 2 2
2 2 2 2 2
2 2 2 2 2
2 2 2 2 2
2 2 2
2 2 2
2 3⁄16 2 3⁄16 2 3⁄16 2 3⁄16 2 3⁄16
2 3⁄16 2 3⁄16 2 3⁄16 2 3⁄16 2 3⁄16
2 3⁄16 2 3⁄16 2 3⁄16 2 3⁄16 2 3⁄16
2 3⁄16 2 3⁄16 2 3⁄16 2 3⁄16 2 3⁄16
2 3⁄16 2 3⁄16 2 3⁄16 2 3⁄16 2 3⁄16
2 3⁄16 2 3⁄16 2 3⁄16
2 3⁄16 2 3⁄16 2 3⁄16
2 7⁄16 2 7⁄16 2 7⁄16 2 7⁄16 2 7⁄16
2 7⁄16 2 7⁄16 2 7⁄16 2 7⁄16 2 7⁄16
2 7⁄16 2 7⁄16 2 7⁄16 2 7⁄16 2 7⁄16
2 7⁄16 2 7⁄16 2 7⁄16 2 7⁄16 2 7⁄16
2 7⁄16 2 7⁄16 2 7⁄16 2 7⁄16 2 7⁄16
2 7⁄16 2 7⁄16 2 7⁄16
2 7⁄16 2 7⁄16 2 7⁄16
Hub diameters vary to suit different bore sizes. Sprockets with “H” prefix have hardened teeth.
KEYWAY IS ON CENTER LINE OF TOOTH.
LengthThru Bore
.459Nominal
www.BlackStarPT.com 45
All dimensions in inches.
HubDiameter
LengthThru Bore
.459Nominal
OutsideDiameter
60 Sprockets3/4” Pitch
Single - Type C
No.of
Teeth Catalog Number
Diameters Bore Hub Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
LengthThru Bore
12 13 14 15 16
17 18
H60C12 H60C13 H60C14 H60C15 H60C16
H60C17 H60C18
3.25 3.49 3.743.98 4.22
4.46 4.70
2.8983.1343.3713.6083.845
4.0824.319
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4
1 3⁄8 1 1⁄2 1 3⁄4 1 7⁄8 2
2 1⁄4 2 3⁄8
2 3⁄8 *2 11⁄32 2 9⁄16 2 7⁄8 3 1⁄16
3 1⁄4 3 1⁄2
2 2 2 2 2
2 2
2.32.8 3.2 3.1 4.2
4.8 5.6
* Has a recessed groove in the hub for chain clearance.Sprockets with “H” prefix have hardened teeth.
Double Single - Type A
No.of
Teeth Catalog Number
Diameters Bore
E
Approx.Weight(lbs.)
Outside Diameter
Pitch Diameter Minimum Maximum
13 14 15 16 17
18 19 20 21 22
23 24
DS60A13HDS60A14HDS60A15HDS60A16HDS60A17H
DS60A18HDS60A19HDS60A20HDS60A21HDS60A22H
DS60A23HDS60A24H
3.49 3.74 3.98 4.22 4.46
4.70 4.95 5.19 5.43 5.67
5.91 6.15
3.134 3.371 3.607 3.844 4.082
4.319 4.557 4.794 5.032 5.270
5.508 5.749
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4 3⁄4 3⁄4 3⁄4
3⁄4 3⁄4
1 1⁄4 1 5⁄16 1 1⁄2 1 11⁄16 1 3⁄4
1 7⁄8 2 1⁄16 2 1⁄4 2 3⁄4 2 3⁄4
2 3⁄4 2 3⁄4
2 11⁄32 2 9⁄16 2 7⁄8 3 3⁄64 3 1⁄4
3 1⁄2 3 45⁄64 3 61⁄64 4 3⁄16 4 7⁄16
4 21⁄32 4 29⁄32
2.6 3.2 3.8 4.5 5.3
6.5 6.8 7.0 7.5
11.0
11.5 12.0
TYPE C TYPE A
E
.459Nominal
OutsideDiameter
1.484
1.938
Superior Materials Make Superior Products46
All dimensions in inches.
1.938
L2 E
1.484
1.459Nominal
OutsideDiameter
Double Single - TL StyleNo.of
Teeth Catalog Number Bushing Size
Diameters
Type
Bore Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter Minimum Maximum E L2
BushingOnly
SprocketOnly
16 17 18 19 20 21 23 24
DS60ATL16H DS60ATL17H DS60ATL18H DS60ATL19H DS60ATL20H DS60ATL21H DS60ATL23H DS60ATL24H
1615 1615 2012 2012 2517 2517 2517 2517
4.22 4.46 4.70 4.95 5.19 5.43 5.91 6.15
3.844 4.002 4.319 4.557 4.794 5.032 5.508 5.746
A A A A A A A A
1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 1⁄2 1⁄2
1 5⁄8 1 5⁄8 2 2 2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 63⁄64 3 7⁄32 3 15⁄32 3 45⁄64 3 61⁄64 4 3⁄16 4 43⁄64 4 29⁄32
1 1⁄2 1 1⁄2 1 1⁄4 1 1⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
0.90.91.41.43.03.03.03.0
4.5 4.5 5.0 5.8 5.6 6.4 7.3 8.2
Double Single - Split Taper StyleNo.of
Teeth Catalog Number
Bushing Size
Diameters
Type
Bore Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter Minimum Maximum E L2
BushingOnly
SprocketOnly
17 19 21 22 23 24
DS60P17H DS60P19H DS60Q21H DS60Q22H DS60Q23H DS60Q24H
P1 P1 Q1 Q1 Q1 Q1
4.46 4.95 5.43 5.67 5.91 6.15
4.002 4.557 5.032 5.270 5.508 5.746
B B B B B B
1⁄2 1⁄2 3⁄4 3⁄4 3⁄4 3⁄4
1 3⁄4 1 3⁄4 2 11⁄16 2 11⁄16 2 11⁄16 2 11⁄16
3 7⁄32 3 45⁄64 4 3⁄16 4 27⁄64 4 43⁄64 4 29⁄32
1 15⁄16 1 15⁄16 2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
1.31.33.53.53.53.5
3.9 5.3 5.4 6.2 6.9 7.6
Sprockets with “H” suffix have hardened teeth.
TYPE A TYPE B
60 Sprockets3/4” Pitch
1.938.459
Nominal
E2L
1.484
OutsideDiameter
www.BlackStarPT.com 47
All dimensions in inches.
Single - Split Taper Style No.of
Teeth Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
PitchDiameter OL L C H P
BushingOnly
SprocketOnly
11 12 13 13 14
14 15 15 16 16
17 17 18 18 19
19 20 20 20 21
21 22 22 22 23
23 24 24 24 25
25 26 26 27 27
28 28 29 30 30
31 32 33 34 35
36 37 38 39 40
41 42 44 45 47
48 50 54 56 60
70 70 72 72 80
80 84 84 96 96
112 112
H60H11 H60H12 H60H13 H60P13 H60H14 H60P14 H60H15 H60P15 H60H16 H60P16
H60H17 H60P17 H60H18 H60P18 H60H19
H60P19 H60H20 H60P20 H60Q20 H60P21
H60Q21 H60H22 H60P22 H60Q22 H60P23
H60Q23 H60H24 H60P24 H60Q24 H60P25
H60Q25 H60P26 H60Q26 H60P27 H60Q27
H60P28 H60Q28 H60Q29 H60P30 H60Q30
60Q31 60Q32 60Q33 60Q34 60Q35
60Q36 60Q37 60Q38 60Q39 60Q40
60Q41 60Q42 60Q44 60Q45 60Q47
60Q48 60Q50 60Q54 60Q56 60Q60
60Q70 60R70 60Q72 60R72 60Q80
60R80 60Q84 60R84 60Q96 60R96 60Q112 60R112
H H H P1 H P1 H P1 H P1
H P1 H P1 H
P1 H P1 Q1 P1
Q1 H P1 Q1 P1
Q1 H P1 Q1 P1
Q1 P1 Q1 P1 Q1
P1 Q1 Q1 P1 Q1
Q1 Q1 Q1 Q1 Q1
Q1 Q1 Q1 Q1 Q1
Q1 Q1 Q1 Q1 Q1
Q1 Q1 Q1 Q1 Q1
Q1 R1 Q1 R1 Q1
R1 Q1 R1 Q1 R1 Q1 R1
3.00 3.25 3.49 3.49 3.74
3.74 3.98 3.98 4.22 4.22
4.46 4.46 4.70 4.70 4.95
4.95 5.19 5.19 5.19 5.43
5.43 5.67 5.67 5.67 5.91
5.91 6.15 6.15 6.15 6.39
6.39 6.63 6.63 6.87 6.87
7.11 7.11 7.35 7.59 7.59
7.83 8.07 8.30 8.54 8.78
9.02 9.26 9.50 9.74 9.98
10.22 10.46 10.94 11.18 11.65
11.89
12.37 13.33 13.81 14.76
17.15 17.15 17.63 17.63 19.54
19.54
20.49 20.49 23.36 23.36 27.18 27.18
2.662 2.898 3.134 3.134 3.371
3.371 3.607 3.607 3.844 3.844
4.082 4.082 4.319 4.319 4.557
4.557 4.794 4.794 4.794 5.032
5.032 5.270 5.270 5.270 5.508
5.508 5.746 5.746 5.746 5.984
5.984 6.222 6.222 6.460 6.460
6.699 6.699 6.937 7.175 7.175
7.413 7.652 7.890 8.129 8.367
8.605 8.844 9.082 9.321 9.559
9.798 10.036 10.513 10.752 11.229
11.467
11.945 12.899 13.376 14.331
16.717 16.717 17.194 17.194 19.103
19.103
20.058 20.058 22.922 22.922 26.742 26.742
3 3 3 4 3
4 3 4 3 4
3 4 3 4 3
4 3 4 4 4
4 3 4 4 4
4 3 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4 4 4
1 1/2 1 1/2 1 1/2 1 3/4 1 1/2 1 3/4 1 1/2 1 3/4 1 1/2 1 3/4
1 1/2 1 3/4 1 1/2 1 3/4 1 1/2
1 3/4 1 1/2 1 3/4 2 11/16 1 3/4
2 11/16 1 1/2 1 3/4 2 11/16 1 3/4
2 11/16 1 1/2 1 3/4 2 11/16 1 3/4
2 11/16 1 3/4 2 11/16 1 3/4 2 11/16
1 3/4 2 11/16 2 11/16 1 3/4 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 3 3/4 2 11/16 3 3/4 2 11/16
3 3/4 2 11/16 3 3/4 2 11/16 3 3/4 2 11/16 3 3/4
1 13/16 1 3/4 1 1/2 2 3/16 1 1/2
2 3/16 1 1/2 2 3/16 1 1/2 2 3/16
1 1/2 2 3/16 1 1/2 2 3/16 1 1/2
2 3/16 1 1/2 2 3/16 2 25/32 2 3/16
2 25/32 1 1/2 2 3/16 2 25/32 2 3/16
2 25/32 1 1/2 2 3/16 2 25/32 2 3/16
2 25/32 2 3/16 2 25/32 2 3/16 2 25/32
2 3/16 2 25/32 2 25/32 2 3/16 2 25/32
2 25/32 2 25/32 2 25/32 2 25/32 2 25/32
2 25/32 2 25/32 2 25/32 2 25/32 2 25/32
2 25/32 2 25/32 2 25/32 2 25/32 2 25/32
2 25/32 2 25/32 2 25/32 2 25/32 2 25/32
2 25/32 3 5/32 2 25/32 3 5/32 2 25/32
3 5/32 2 25/32 3 5/32 2 25/32 3 5/32 2 25/32 3 5/32
1 1/4 1 1/4 1 1/4 1 15/16 1 1/4
1 15/16 1 1/4 1 15/16 1 1/4 1 15/16
1 1/4 1 15/16 1 1/4 1 15/16 1 1/4
1 15/16 1 1/4 1 15/16 2 1/2 1 15/16
2 1/2 1 1/4 1 15/16 2 1/2 1 15/16
2 1/2 1 1/4 1 15/16 2 1/2 1 15/16
2 1/2 1 15/16 2 1/2 1 15/16 2 1/2
1 15/16 2 1/2 2 1/2 1 15/16 2 1/2
2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 7/8 2 1/2 2 7/8 2 1/2
2 7/8 2 1/2 2 7/8 2 1/2 2 7/8 2 1/2 2 7/8
3/8 5/16 1/16 0 1/16 0 1/16 0 1/16 0
1/16 0 1/16 0 1/16
0 1/16 0 0 0
0 1/16 0 0 0
0 1/16 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0 0 0
2 1/2 2 1/2 2 1/2 3 2 1/2
3 2 1/2 3 2 1/2 3
2 1/2 3 2 1/2 3 2 1/2
3 2 1/2 3 4 1/8 3
4 1/8 2 1/2 3 4 1/8 3
4 1/8 2 1/2 3 4 1/8 3
4 1/8 3 4 1/8 3 4 1/8
3 4 1/8 4 1/8 3 4 1/8
4 1/8 4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 5 3/8 4 1/8 5 3/8 4 1/8
5 3/8 4 1/8 5 3/8 4 1/8 5 3/8 4 1/8 5 3/8
1 5/32 1 3/32 27/32 1 15/32 27/32
1 15/32 27/32 1 15/32 27/32 1 15/32
27/32 1 15/32 27/32 1 15/32 27/32
1 15/32 27/32 1 15/32 2 1/32 1 15/32
2 1/32 27/32 1 15/32 2 1/32 1 15/32
2 1/32 27/32 1 15/32 2 1/32 1 15/32
2 1/32 1 15/32 2 1/32 1 15/32 2 1/32
1 15/32 2 1/32 2 1/32 1 15/32 2 1/32
2 1/32 2 1/32 2 1/32 2 1/32 2 1/32
2 1/32 2 1/32 2 1/32 2 1/32 2 1/32
2 1/32 2 1/32 2 1/32 2 1/32 2 1/32
2 1/32 2 1/32 2 1/32 2 1/32 2 1/32
2 1/32 2 13/32 2 1/32 2 13/32 2 1/32
2 13/32 2 1/32 2 13/32 2 1/32 2 13/32 2 1/32 2 13/32
0.80.80.81.30.8
1.30.81.30.81.3
0.81.30.81.30.8
1.30.81.33.51.3
3.50.81.33.51.3
3.50.81.33.51.3
3.51.33.51.33.5
1.33.53.51.33.5
3.53.53.53.53.5
3.53.53.53.53.5
3.53.53.53.53.5
3.53.53.53.53.5
3.57.53.57.53.5
7.53.57.53.57.53.57.5
0.7 0.8 0.8 1.2 1.1
1.4 1.4 1.7 1.3 1.8
1.5 2.1 1.7 2.2 1.9
2.5 2.1 3.1 3.5 2.9
3.6 2.6 3.2 4.0 3.5
4.1 3.0 3.8 4.5 4.1
5.9 4.3 6.3 4.5 6.4
4.9 6.9 7.3 5.6 7.6
7.8 8.3 8.7 9.1 9.3
9.9 10.3 10.6 11.1 11.6
11.9
12.6 13.4 13.9 16.3
16.4 16.9 19.6 20.3 22.9
30.9 31.8 31.9 34.1 39.1
41.5 41.6 44.8 54.0 56.0 73.0 74.5
60 Sprockets3/4” Pitch
Sprockets with “H” suffix have hardened teeth.
TYPE 3
TYPE 4
0.459Nominal
O.L.
H
P
C L
OutsideDiameter
C L
P
H
0.459Nominal
O.L.
OutsideDiameter
Superior Materials Make Superior Products48
All dimensions in inches.
Single - QD StyleNo.of
TeethCatalogNumber Bushing
Diameters
TypeMaximum
Bore
DImensions Approx. Weight (lbs.)
OutsIdeDiameter
PitchDiameter L1 L2 C Y G X
BushingOnly
SprocketOnly
1112131415
1617181920
2122232425
2627283032
3536404245
4854607072
808496112
H60JA11H60JA12H60JA13H60SH14H60SH15
H60SH16H60SDS17H60SDS18H60SDS19H60SDS20
H60SDS21H60SDS22H60SDS23H60SDS24H60SDS25
H60SK26H60SK27H60SK28H60SK3060SK32
60SK3560SK3660SK4060SF4260SF45
60SF4860SF5460SF6060SF7060SF72
60SF8060SF8460SF9660E112
JAJAJASHSH
SHSDSSDSSDSSDS
SDSSDSSDSSDSSDS
SKSKSKSKSK
SKSKSKSFSF
SFSFSFSFSF
SFSFSFE
3.003.253.493.743.98
4.224.464.704.955.19
5.435.675.916.156.39
6.636.877.117.598.07
8.789.029.98
10.4611.18
11.8913.3314.7617.1517.63
19.5420.4923.3627.18
2.6622.8983.1343.3713.607
3.8444.0824.3194.5574.794
5.0325.2705.5085.7465.984
6.2226.4606.6997.1757.652
8.3678.6059.559
10.03610.752
11.46712.89914.33116.71717.194
19.10320.05822.92226.742
BBBBB
BBBBB
BBBBB
BBBBB
BBBBB
BBBBB
BBBB1
1 1/41 1/41 1/41 5/81 5/8
1 5/82222
22222
2 5/82 5/82 5/82 5/82 5/8
2 5/82 5/82 5/82 15/162 15/16
2 15/162 15/162 15/162 15/162 15/16
2 15/162 15/162 15/163 1/2
1 1/81 1/81 1/81 7/161 7/16
1 7/161 1/21 1/21 1/21 1/2
1 1/21 1/21 1/21 1/21 1/2
2 1/82 1/82 1/82 1/82 1/8
2 1/82 1/82 1/82 1/42 1/4
2 1/42 1/42 1/42 1/42 1/4
2 1/42 1/42 1/42 5/8
1 1/81 1/81 1/81 7/161 7/16
1 7/161 1/21 1/21 1/21 1/2
1 1/21 1/21 1/21 1/21 1/2
2 1/82 1/82 1/82 1/82 1/8
2 1/82 1/82 1/82 1/42 1/4
2 1/42 1/42 1/42 1/42 1/4
2 1/42 1/42 1/42 5/8
2 1/162 1/162 1/162 11/162 11/16
2 11/163 3/163 3/163 3/163 3/16
3 3/163 3/163 3/163 3/163 3/16
3 7/83 7/83 7/83 7/83 7/8
3 7/83 7/83 7/84 5/84 5/8
4 5/84 5/84 5/84 5/84 5/8
4 5/84 5/84 5/86
35/6435/6435/6451/6451/64
51/6455/6455/6455/6455/64
55/6455/6455/6455/6455/64
1 27/641 27/641 27/641 27/641 27/64
1 27/641 27/641 27/641 35/641 35/64
1 35/641 35/641 35/641 35/641 35/64
1 35/641 35/641 35/642 3/16
11/6411/6411/6423/6423/64
23/6419/6419/6419/6419/64
19/6419/6419/6419/6419/64
51/6451/6451/6451/6451/64
51/6451/6451/6451/6451/64
51/6451/6451/6451/6451/64
51/6451/6451/641 11/64
5/85/85/813/1613/16
13/163/43/43/43/4
3/43/43/43/43/4
1 1/41 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 5/8
0.90.90.91.01.0
1.01.01.01.01.0
1.01.01.01.01.0
2.02.02.02.02.0
2.02.02.02.03.0
3.03.03.03.03.0
3.03.03.0
10.0
0.50.60.80.91.1
1.31.41.61.82.0
2.22.42.72.93.2
4.24.54.75.36.1
7.47.79.6
10.812.4
14.317.020.828.629.6
38.240.952.473.8
Sprockets with “H” suffix have hardened teeth.
60 Sprockets3/4” Pitch
OutsideDiameter
L1
Y
G
C
XL2
0.459Nominal
TYPE B
OutsideDiameter
C
L2X
G
Y
L10.459Nominal
P
TYPE B1
www.BlackStarPT.com 49
All dimensions in inches.
60 Sprockets3/4” Pitch
Single - TL StyleNo.of
Teeth Catalog Number Bushing
Diameters
Type
Maximum Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L
C
BushingOnly
SprocketOnly
11 12 13 14 15
16 17 18 19 20
21 22 23 24 25
26 27 28 30 32
35 36 40 42 45
48 54 60 70 72
80 84
H60BTL11 H60BTL12 H60BTL13 H60BTL14 H60BTL15
H60BTL16 H60BTL17 H60BTL18 H60BTL19 H60BTL20
H60BTL21 H60BTL22 H60BTL23 H60BTL24 H60BTL25
H60BTL26 H60BTL27 H60BTL28 H60BTL30 60BTL32
60BTL35 60BTL36 60BTL40 60BTL42 60BTL45
60BTL48 60BTL54 60BTL60 60BTL70 60BTL72
60BTL80 60BTL84
1008 1008 1210 1210 1610
1610 1610 1610 1610 2012
2012 2012 2012 2012 2012
2012 2012 2012 2012 2012
2012 2012 2012 2012 2012
2012 2517 2517 2517 2517
2517 2517
3.00 3.25 3.49 3.74 3.98
4.22 4.46 4.70 4.95 5.19
5.43 5.67 5.91 6.15 6.39
6.63 6.87 7.11 7.59 8.07
8.78
9.02 9.98
10.46 11.18
11.89
13.33 14.76 17.15 17.63
19.58
20.49
2.662 2.898 3.134 3.371 3.607
3.844 4.082 4.319 4.557 4.794
5.032 5.270 5.508 5.746 5.984
6.222 6.416 6.699 7.175 7.652
8.367
8.605 9.559
10.036 10.752
11.467
12.899 14.330 16.717 17.194
19.103
20.058
B B B B B B B B B B
B B B B B
B B B B B
B B B B B
B B B B B
B B
1 1 1 1⁄4 1 1⁄4 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8 2
2 2 2 2 2
2 2 2 2 2
2 2 2 2 2
2 2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2
7⁄8 7⁄8 1 1 1 1 1 1 1 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4
1 13⁄16 1 15⁄16 2 15⁄32 * 2 19⁄32 2 25⁄32
3 3 1⁄4 3 1⁄2 3 1⁄2 3 15⁄16 4 4 4 3 9⁄16 3 9⁄16
3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16
3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16 3 9⁄16
3 9⁄16 4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4
4 1⁄4 4 1⁄4
0.3 0.3 0.6 0.6 0.9
0.9 0.9 0.9 0.9 1.7
1.7 1.7 1.7 1.7 1.7
1.7 1.7 1.7 1.7 1.7
1.7 1.7 1.7 1.7 1.7
1.7 3.5 3.5 3.5 3.5
3.5 3.5
0.6 0.8 0.8 1.0 1.0
1.4 1.8 1.9 2.2 2.2
2.5 2.8 3.1 3.4 3.7
4.0 4.2 4.6 5.2 5.6
6.4 6.6 8.3 10.0 11.5
13.2 17.1 21.0 27.6 30.0
36.3 40.6
* Has a recessed groove in the hub for chain clearance.Sprockets with “H” prefix have hardened teeth.
C
L
.459Nominal
TYPE B
Superior Materials Make Superior Products50
All dimensions in inches.
60 Sprockets3/4” PitchDouble - Split Taper Style
No.of
TeethCatalogNumber Bushing
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
OutsideDiameter
PitchDiameter OL L C H P
BushingOnly
SprocketOnly
1314151617
1819202122
2324252627
2830323536
4042424548
5254606872
76849596
D60P13HD60P14HD60P15HD60P16HD60P17H
D60P18HD60P19HD60P20HD60Q21HD60Q22H
D60Q23HD60Q24HD60Q25HD60Q26HD60Q27H
D60Q28HD60Q30HD60Q32D60Q35D60Q36
D60Q40D60Q42D60R42D60R45D60R48
D60R52D60R54D60R60D60R68D60R72
D60R76D60R84D60R95D60R96
P1P1P1P1P1
P1P1P1Q1Q1
Q1Q1Q1Q1Q1
Q1Q1Q1Q1Q1
Q1Q1R1R1R1
R1R1R1R1R1
R1R1R1R1
3.493.743.984.224.46
4.704.955.195.435.67
5.916.156.396.636.87
7.117.598.078.789.02
9.9810.4610.4611.1811.89
12.8513.3314.7616.6717.63
18.5820.4923.1223.36
3.1343.3713.6073.8444.082
4.3194.5574.7945.0325.270
5.5085.7465.9846.2226.460
6.6997.1757.6528.3678.605
9.55910.03610.03610.75211.467
12.42212.89914.33116.24017.194
18.14920.05822.68322.922
1612121313
1313131212
1212121212
1212121212
1212121212
1212121212
12121212
1 3/41 3/41 3/41 3/41 3/4
1 3/41 3/41 3/42 11/162 11/16
2 11/162 11/162 11/162 11/162 11/16
2 11/162 11/162 11/162 11/162 11/16
2 11/162 11/163 3/43 3/43 3/4
3 3/43 3/43 3/43 3/43 3/4
3 3/43 3/43 3/43 3/4
3 13/1633 2 7/322 7/32
2 7/322 7/322 7/322 25/322 25/32
2 25/322 25/322 25/322 25/322 25/32
2 25/322 25/322 25/322 25/322 25/32
2 25/322 25/323 5/323 5/323 5/32
3 5/323 5/323 5/323 5/323 5/32
3 5/323 5/323 5/323 5/32
1 15/161 15/161 15/161 15/161 15/16
1 15/161 15/161 15/162 1/22 1/2
2 1/22 1/22 1/22 1/22 1/2
2 1/22 1/22 1/22 1/22 1/2
2 1/22 1/22 7/82 7/82 7/8
2 7/82 7/82 7/82 7/82 7/8
2 7/82 7/82 7/82 7/8
1 5/813/1613/161/321/32
1/321/321/3200
00000
00000
00000
00000
0000
33333
3334 1/84 1/8
4 1/84 1/84 1/84 1/84 1/8
4 1/84 1/84 1/84 1/84 1/8
4 1/84 1/85 3/85 3/85 3/8
5 3/85 3/85 3/85 3/85 3/8
5 3/85 3/85 3/85 3/8
1 13/321 13/321 13/325/85/8
5/85/85/81 5/321 5/32
1 5/321 5/321 5/321 5/321 5/32
1 5/321 5/321 5/321 5/321 5/32
1 5/321 5/321 17/321 17/321 17/32
1 17/321 17/321 17/321 17/321 17/32
1 17/321 17/321 17/321 17/32
1.31.31.31.31.3
1.31.31.33.53.5
3.53.53.53.53.5
3.53.53.53.53.5
3.53.57.57.57.5
7.57.57.57.57.5
7.57.57.57.5
2.52.32.72.42.8
3.44.04.74.85.6
6.37.07.98.89.6
10.512.314.317.718.4
23.926.325.730.235.1
41.845.154.873.881.8
93.0111.0148.0155.0
Sprockets with “H” suffix have hardened teeth.
1.341
.444
OutsideDiameter
H
O.L.
P
C L
TYPE 12
1.341
.444
OutsideDiameter
P
H
LC
O.L.
TYPE 13 TYPE 16
OL
OutsideDiameter
LC
.444
1.341P
H
www.BlackStarPT.com 51
All dimensions in inches.
Double - Type B & C No.of
Teeth Catalog Number
Diameter
Type
Bore Hub
Approx. Weight (lbs.)
OutsideDiameter
Pitch Diameter Minimum Maximum Diameter
Length Thru Bore
11 12 13
14 15 16
17 18 19
20 21 22
23 24 25
26 30 32
35 36 40
42 45 52
60 68 72
76 95
D60B11H D60B12H D60B13H
D60B14H D60B15H D60B16H
D60B17H D60B18H D60B19H D60B20H D60B21H D60B22H D60B23H D60B24H D60B25H
D60B26H D60B30H D60B32
D60B35 D60B36 D60B40
D60B42 D60B45 D60B52
D60B60 D60C68 D60C72
D60C76 D60C95
3.00 3.25 3.49
3.74 3.98 4.22
4.46 4.70 4.95
5.19 5.43 5.67
5.91 6.15 6.39
6.63 7.59 8.07
8.78 9.02 9.98
10.46 11.18 12.85
14.76
16.67 17.63
18.58 23.12
2.662 2.898 3.134
3.371 3.607 3.844
4.082 4.319 4.557
4.794 5.032 5.270
5.508 5.746 5.984
6.2227.175
7.652
8.367 8.605 9.559
10.036 10.75212.422
14.33016.24017.195
18.14922.684
B B B B B B B B B B B B B B B B B B
B B B
B B B
B C C
C C
1 1 1
1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4
1 1⁄4 1 7⁄16 1 1⁄2 1 3⁄4 1 7⁄8 2
2 1⁄4 2 3⁄8 2 1⁄2 2 1⁄2 2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4
2 3⁄4 2 3⁄4 3
3 3 3 1⁄4
3 1⁄4 3 1⁄4 3 1⁄4
3 1⁄4 3 5⁄16 3 5⁄16
3 5⁄16 3 3⁄4
1 13⁄16 2 1⁄8 2 1⁄4
2 1⁄2 2 13⁄16 3
3 1⁄4 3 1⁄2 3 11⁄16 3 3⁄4 4 1⁄8 4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4
4 1⁄4 4 1⁄4 4 1⁄2
4 1⁄2 4 1⁄2 4 3⁄4
4 3⁄4 4 3⁄4 4 3⁄4
4 3⁄4 5 5
5 5 1⁄2
2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8 2 1⁄8
2 1⁄8 2 1⁄8 2 3⁄8
2 3⁄8 2 3⁄8 2 3⁄4
2 3⁄4 2 3⁄4 2 3⁄4
2 3⁄4 3 3
3 3 1⁄2
1.6 2.2 2.6
3.2 4.0 4.6
5.4 6.2 7.0
7.7 8.8 9.7
10.3 11.1 12.0
12.7 16.4 19.5
22.8 23.8 30.8
33.1 37.1 48.7
63.1 53.7 53.7
60.3 87.1
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” suffix have hardened teeth.
D60 Sprockets3/4” Pitch
HubDiameter
LengthThru Bore
.444Nominal
1.341
TYPE B
.444Nominal
HubDiameter
1.341
LengthThru Bore
OutsideDiameter
TYPE C
Superior Materials Make Superior Products52
All dimensions in inches.
Double - QD StyleNo.of
TeethCetalogNumber BushIng
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
OutsideDiameter
PItchDiameter L1 L2 C Y P G X
BushingHub
SprocketOnly
1422
364245
526068
7695
D60SH14HD60SDS22H
D60SF36D60E42D60E45
D60E52D60E60D60E68
D60E76D60E95
SHSDS
SFEE
EEE
EE
3.745.67
9.0210.4611.18
12.8514.7616.67
18.5823.12
3.3715.270
8.60510.03610.752
12.42214.33116.240
18.14922.683
BB
C1C2C2
C2C2C4
C4C4
1 5/82
2 15/163 1/23 1/2
3 1/23 1/23 1/2
3 1/23 1/2
1 31/321 17/32
22 5/82 5/8
2 5/82 5/82 5/8
2 5/82 5/8
1 31/321 17/32
2 1/42 15/162 15/16
2 15/162 15/162 15/16
2 15/162 15/16
2 11/163 3/16
4 5/866
666
66
1/2
3/47/87/8
7/87/87/8
7/87/8
13/3213/32
13/3213/3213/32
13/3213/32
9/329/32
9/329/329/32
9/329/32
3/4
1 1/41 5/81 5/8
1 5/81 5/81 5/8
1 5/81 5/8
1.01.0
3.010.010.0
10.010.010.0
10.010.0
1.54.4
16.324.028.4
39.553.744.3
51.573.0
Sprockets with “H” suffix have hardened teeth.
D60 Sprockets3/4” Pitch
TYPE C1
1L
2L
X
C
Y P
G
OutsideDiameter
.444Nominal
1.341
TYPE C2
1L
2L
C
Y P
G
X
OutsideDiameter
.444Nominal
1.341
TYPE C4
1L
.444Nominal
Y 1.341 P
C
X2L
OutsideDiameter
TYPE B
1L
.444Nominal
Y 1.341
C
X
2L
OutsideDiameter
www.BlackStarPT.com 53
All dimensions in inches.
D60 Sprockets3/4” Pitch
Double - TL Style
No.of
Teeth
Catalog Number
Bushing
Diameters
Maximum Bore
Dimensions
Type
Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L
C Bushing Only
Sprocket Only
13 14 15 16
17 18 19 20 21 25 30
36 42 45 52
60 68 76 95
D60BTL13H D60BTL14H D60BTL15H D60BTL16H
D60BTL17H D60ATL18H D60ATL19H
D60BTL20H D60BTL21H D60BTL25H D60BTL30H
D60CTL36 D60CTL42 D60CTL45 D60CTL52
D60CTL60 D60CTL68 D60CTL76 D60CTL95
1215 1215 1615 1615
1615 2012 2012
2517 2517 2517 2517
2517 2517 2517 2517
2517 2517 3020 3020
3.49 3.75 3.98 4.22
4.46 4.70 4.95
5.19 5.43 6.39 7.59
9.02 10.46 11.18 12.85
14.76 16.67 18.58 23.12
3.134 3.371 3.607 3.844
4.082 4.319 4.557
4.794 5.032 4.984 7.175
8.605 10.036 10.752 12.422
14.330 16.240 18.149 22.684
1 1⁄4 1 1⁄4 1 5⁄8 1 5⁄8 1 5⁄8 2 2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 3 3
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄4 1 1⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 2 2
2 1⁄4 2 1⁄2 2 13⁄16 3
3 1⁄4
3 61⁄64 4 3⁄16 5 5⁄32 6 11⁄32
4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4
4 1⁄4 4 1⁄2 5 1⁄4 5 1⁄4
B B B B
B A A
B B B B
C C C C
C 1 C 1 C 1 C 1
0.60.60.90.9
0.91.4 1.4
3.03.03.03.0
3.03.03.03.0
3.03.05.45.4
1.61.71.82.3
2.82.42.9
2.93.87.4
13.3
17.425.029.340.3
33.543.247.869.8
Sprockets with “H” suffix have hardened teeth.
TYPE A TYPE B TYPE C
C
L
.444Nominal
1.341
C
L
.444Nominal
1.341
L
C
.444Nominal
1.341
TYPE C1
L
C
.444Nominal
1.341
Superior Materials Make Superior Products54
All dimensions in inches.
T60 Sprockets3/4” PitchTriple - Split Taper Style No.of
Teeth Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
BushingOnly
SprocketOnly
13 14 15 16
17 18 19 20
21 22 23 24
25 26 27 28
30 32 35 36
40 42 52
T60P13H T60P14H T60P15H T60P16H T60Q17H T60Q18H T60Q19H T60Q20H
T60Q21H T60Q22H T60Q23H T60Q24H
T60Q25H T60Q26H T60Q27H T60Q28H
T60R30H T60R32 T60R35 T60R36
T60R40 T60R42 T60R52
P2 P2 P2 P1
Q1 Q1 Q1 Q1
Q1 Q1 Q1 Q1
Q1 Q1 Q1 Q1
R1 R1 R1 R1
R1 R1 R1
3.49 3.74 3.98 4.22
4.46 4.70 4.95 5.19
5.43 5.67 5.91 6.15
6.39 6.63 6.87 7.11
7.59 8.07 8.78 9.02
9.98 10.46 12.85
3.134 3.371 3.607 3.844
4.082 4.319 4.557 4.794
5.032 5.270 5.508 5.746
5.984 6.222 6.460 6.699
7.175 7.652 8.367 8.605
9.559 10.036 12.422
27 22 22 24
27 22 22 22
24 24 25 25
25 25 25 25
25 25 25 25
25 25 25
1 3/4 1 3/4 1 3/4 1 3/4 2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16
3 3/4 3 3/4 3 3/4 3 3/4
3 3/4 3 3/4 3 3/4
4 23/32 3 29/32 3 29/32 3 1/8
5 4 3/16 4 3/16 4 3/16
3 1/4 3 1/4 2 25/32 2 25/32
2 25/32 2 25/32 2 25/32 2 25/32
3 5/32 3 5/32 3 5/32 3 5/32
3 5/32 3 5/32 3 5/32
2 15/16 2 15/16 2 15/16 1 15/16
3 1/2 3 1/2 3 1/2 3 1/2
2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 2 1/2 2 1/2
2 7/8 2 7/8 2 7/8 2 7/8
2 7/8 2 7/8 2 7/8
1 17/32 1 23/32 1 23/32 15/16
13/32 13/32 13/32 13/32
15/32 15/32 0 0
0 0 0 0
0 0 0 0
0 0 0
3 3 3 3
4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 4 1/8 4 1/8 4 1/8
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8
1 13/32 1 13/32 1 13/32 5/8
1 21/32 1 21/32 1 21/32 1 21/32
3/4 3/4 1/4 1/4
1/4 1/4 1/4 1/4
5/8 5/8 5/8 5/8
5/8 5/8 5/8
1.51.51.51.3
3.53.53.53.5
3.53.53.53.5
3.53.53.53.5
7.57.57.57.5
7.57.57.5
3.3 3.3 4.0 3.4
4.6 5.0 5.9 7.0
5.7 6.6 7.7 8.8
10.0 11.1 12.4 13.6
14.0 19.0 22.0 23.4
31.3 35.3 63.2
Sprockets with “H” suffix have hardened teeth.
TYPE 22
C
.444
2.238
P
L
OutsideDiameter
H
O.L.
.4442.238 P
LC
OutsideDiameter
H
OL
L
2.238
C
.444P
OutsideDiameter H
O.L.
TYPE 24 TYPE 27TYPE 25
P2.238C
.444
L
OutsideDiameter
H
O.L.
www.BlackStarPT.com 55
All dimensions in inches.
T60 Sprockets3/4” Pitch
Triple - QD StyleNo.of
TeethCatalogNumber Bushing
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
OutsideDiameter
PitchDiameter L1 L2 C Y P V X
BushingOnly
SprocketOnly
364252
687695
T60E36T60E42T60E52
T60E68T60E76T60E95
EEE
EEE
9.0210.4612.85
16.6718.5823.12
8.60510.03612.422
16.24018.14922.683
B2B2B2
C1C1C1
3 1/23 1/23 1/2
3 1/23 1/23 1/2
2 5/82 5/82 5/8
2 13/162 13/162 13/16
2 15/162 15/162 15/16
3 7/643 7/643 7/64
666
666
17/6417/6417/64
9/169/169/16
1/81/81/8
3/163/163/16
5/165/165/16
1 5/81 5/81 5/8
1 5/81 5/81 5/8
10.010.010.0
10.010.010.0
37.050.068.0
71.087.0
117.0
TYPE B2
C
0.444Nominal
2.238
L1
Y
L2X
TYPE C1
0.444Nominal
Y 2.238
C
L1
X G
L2
V
P
Superior Materials Make Superior Products56
All dimensions in inches.
T60 Sprockets3/4” PitchTriple - Type B & C
No.of
TeethCatalogNumber
Diameters
Type
Bore HubApprox.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
LengthThru Bore
11121314
15161718
19202122
23242526
30353642
45526068
727695
T60B11HT60B12HT60B13HT60B14H
T60B15HT60B16HT60B17HT60B18H
T60B19HT60B20HT60B21HT60B22H
T60B23HT60B24HT60B25HT60B26H
T60B30HT60B35T60B36T60B42
T60B45T60C52T60C60T60C68
T60C72T60C76T60C95
3.003.253.493.74
3.984.224.464.70
4.955.195.435.67
5.916.156.396.63
7.598.789.02
10.46
11.1812.8514.7616.67
17.6318.5823.12
2.6632.8983.134
3.371
3.607 3.844 4.082 4.319
4.557 4.794 5.032 5.270
5.508 5.746 5.984 6.222
7.1758.3678.606
10.037
10.75212.42214.33016.240
17.19518.14922.684
BBBB
BBBB
BBBB
BBBB
BBBB
BCCC
CCC
1111
1111
1111
1111
11 1/41 1/41 1/4
1 1/41 1/41 1/41 1/4
1 1/41 1/21 1/2
1 1/41 7/161 1/21 3/4
1 7/822 1/42 3/8
2 1/22 1/22 3/42 3/4
2 3/42 3/42 3/42 3/4
2 3/4333 1/4
3 1/43 1/43 1/43 1/4
3 1/43 3/43 3/4
1 13/162 1/82 1/42 1/2
2 13/1633 1/43 1/2
3 11/163 3/44 1/84 1/4
4 1/44 1/44 1/44 1/4
4 1/44 1/24 1/24 3/4
4 3/44 3/44 3/45
55 1/25 1/2
3333
3333
3333
3333
33 1/43 1/43 5/8
3 5/83 1/23 1/23 1/2
3 1/23 1/24
2.53.33.94.5
5.46.57.78.5
10.011.212.513.2
14.615.817.018.6
23.234.537.049.0
57.073.063.073.0
85.082.0
105.0
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” suffix have hardened teeth.
.444Nominal
Length Thru Bore
HubDiameter
2.238
TYPE B
.444Nominal
Length Thru Bore
HubDiameter
2.238
TYPE C
www.BlackStarPT.com 57
All dimensions in inches.
80 Sprockets1” Pitch
Single - Type B & C Single - Type A
No. ofTeeth
CatalogNumber
Diameter
Type
Bore HubApprox.Weight(lbs.)
CatalogNumber
StockBore
Approx.Weight(lbs.)
Outside Diameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
89
1011
12131415
16171819
20212223
24252627
28293031
32333435
36373839
40414243
44454647
48495051
52535455
56575859
60657072
7680849096
112
H80B8H80B9H80B10H80B11
H80B12H80B13H80B14H80B15
H80B16H80B17H80B18H80B19
H80B20H80B21H80B22H80B23
H80B24H80B25H80B26H80B27
H80B28H80B29H80B3080B31
80B3280B3380B3480B35
80B3680B3780B3880B39
80B4080B4180B4280B43
80B4480B4580B4680B47
80B4880B4980B5080B51
80B5280B5380B5480B55
80B5680B5780B5880B59
80B6080B6580C7080C72
80C7680C8080C8480C9080C9680C112
3.013.353.684.01
4.334.664.985.30
5.635.956.276.59
6.917.247.567.88
8.208.528.849.16
9.489.80
10.1110.43
10.7511.0711.3911.71
12.0312.3512.6712.99
13.3113.6313.9414.26
14.5814.9015.2215.54
15.8616.1816.5016.81
17.1317.4517.7718.09
18.4118.7319.0419.36
19.6821.2722.8723.50
24.7826.0527.3329.2431.1536.24
2.6132.6133.2363.550
3.8644.1794.4944.810
5.1265.4425.7596.076
6.3926.7107.0277.344
7.6617.9798.2968.614
8.9319.2499.2499.884
10.20210.52010.83811.156
11.47111.79212.11012.428
12.74613.06413.38213.700
14.01814.33614.65414.972
15.29015.60815.92616.244
16.56216.88017.19817.516
17.83518.15318.47118.789
19.10720.69822.28922.926
24.19825.47126.74428.65430.56335.655
BBBB
BBBB BBBB
BBBB
BBBB
BBBB
BBBB
BBBB
BBBB
BBBB
BBBB
BBBB
BBBB
BBCC
CCCCCC
1 1 1 1
1 1 1 1
1 1 1 1
1 1 1 1
1 1 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 1 5/161 1/2 1 5/8
1 7/8 2 2 1/4 2 1/2
2 3/4 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 3 1/4 3 1/4
3 1/4 3 1/4 3 1/4 3 1/4
3 1/4 3 1/4 3 1/4 3 1/4
3 1/4 3 1/4 3 1/4 3 1/4
3 1/4 3 1/4 3 1/4 3 1/4
3 1/4 3 1/4 3 1/4 3 1/4
3 1/4 3 1/4 3 1/4 3 1/4
3 1/4 3 1/4 3 1/2 3 1/2
3 1/2 3 1/2 3 1/2 3 1/2
3 1/2 3 1/2 4 1/4 4 1/4
4 1/4 4 1/4 4 1/4 4 1/4 4 1/4 4 1/4
1 15/16 *2 1/4 *2 9/16 *2 13/16 *
3 1/8 3 3 1/4 3 13/16
4 4 4 1/4 4 1/4
4 1/4 4 1/4 4 1/4 4 1/4
4 1/4 4 1/4 4 3/4 4 3/4
4 3/4 4 3/4 4 3/4 4 3/4
4 3/4 4 3/4 4 3/4 4 3/4
4 3/4 4 3/4 4 3/4 4 3/4
4 3/4 4 3/4 4 3/4 4 3/4
4 3/4 4 3/4 4 3/4 4 3/4
4 3/4 4 3/4 4 3/4 4 3/4
4 3/4 4 3/4 5 1/4 5 1/4
5 1/4 5 1/4 5 1/4 5 1/4
5 1/4 5 1/4 6 1/4 6 1/4
6 1/4 6 1/4 6 1/4 6 1/4 6 1/4 6 1/4
1 5/8 1 5/8 1 5/8 1 5/8
1 5/8 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 3/4 1 3/4 1 3/4 1 3/4 1 3/4 2 2
2 2 2 2
2 2 2 2
2 2 2 2
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
2 2 2 2 2 2 3 1/2 3 1/2
3 1/2 3 1/2 3 1/2 3 1/2 3 1/2 3 1/2
1.401.602.203.20
3.403.504.105.30
5.906.607.307.80
8.409.40
10.0010.70
11.3011.9014.3015.40
16.0017.1017.4018.70
19.5019.6021.3022.10
23.1023.8024.7025.60
26.7027.8028.7029.40
29.9031.4033.1034.00
35.5035.8037.3038.60
39.4041.3044.7045.60
47.5048.5050.5052.10
54.5061.8075.7081.40
87.8089.9099.20
106.00117.00154.00
H80A9H80A10H80A11
H80A12H80A13H80A14H80A15
H80A16H80A17H80A18H80A19
H80A20H80A21H80A22H80A23
H80A24H80A25H80A26H80A27
H80A28H80A29H80A3080A31
80A3280A3380A3480A35
80A3680A3780A3880A39
80A4080A4180A4280A43
80A4480A4580A4680A47
80A4880A4980A5080A51
80A5280A5380A5480A55
80A5680A5780A5880A59
80A6080A6580A7080A72
80A7680A8080A8480A9080A9680A112
15/16 15/16 15/16 15/16 15/16 15/16 15/16 15/16 15/16 15/16 15/16 15/16 15/16 15/16 15/16 15/16 15/161 3/161 3/16
1 3/161 3/161 3/161 3/16
1 3/161 3/161 3/161 3/16
1 3/161 3/161 3/161 3/16
1 3/161 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
0.81.01.3
1.51.82.22.5
2.93.33.74.1
4.74.95.56.3
6.77.27.88.6
9.39.8
10.711.3
12.113.614.314.8
16.116.817.217.9
18.921.021.823.6
24.325.226.626.4
27.828.930.932.2
33.034.936.637.5
39.440.441.342.9
45.352.259.865.7
70.279.686.1
101.0120.0165.0
Sprockets with “H” prefix have hardened teeth.* Has a recessed groove in the hub for chain clearance.
Maximum bores shown will accom-modate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow key-seat, or setscrew at angle to keyseat.
TYPE A
TYPE B
OutsideDiameter
.575Nominal
HubDiameter
LengthThru Bore
.575Nominal
OutsideDiameter
HubDiameter
LengthThru Bore
.575Nominal
OutsideDiameter
TYPE C
Superior Materials Make Superior Products58
All dimensions in inches.
LengthThru Bore
.575Nominal
www.BlackStarPT.com 59
All dimensions in inches.
80 Sprockets1” Pitch
Single - Bored to Size — Keyway and 2 Setscrews
No.of
Teeth Catalog Number
Diameters
Length Thru Bore
Approx.Weight(lbs.) Stock Finished Bore Includes Keyway and Setscrews
OutsideDiameter
PitchDiameter
9 10 11
H80BS9H80BS10 H80BS11
3.35 3.68 4.01
2.6133.2363.550
1 5/8 1 5/8 1 5/8
1.6 1.7 1.8
1 1 1
1 1/8 1 1/8
1 3/16 1 3/16 1 3/16
1 1/4 1 1/4 1 1/4 1 3/8 1 7/16 1 1/2 1 5/8
12 13 14 15
H80BS12 H80BS13 H80BS14 H80BS15
4.33 4.66 4.98 5.30
3.8644.1794.4944.810
1 5/8 1 1/21 1/2 1 1/2
3.0 3.5 4.1 5.2
1111
1 1/8 1 1/8 1 1/8 1 1/8
1 3/16 1 3/16 1 3/16 1 3/16
1 1/4 1 1/4 1 1/4 1 1/4
1 3/8 1 3/8 1 3/8 1 3/8
1 7/16 1 7/16 1 7/16 1 7/16
1 1/2 1 1/2 1 1/2 1 1/2
1 5/8 1 5/8 1 5/8 1 5/8
1 3/4 1 3/4 1 3/4 1 3/4
1 7/8 1 7/8 1 7/8
1 15/16 1 15/16 1 15/16
222
16 17 18
H80BS16 H80BS17 H80BS18
5.63 5.95 6.27
5.1265.4425.759
1 1/2 1 1/2 1 1/2
5.5 6.0 6.5
1 1 1
1 3/16 1 3/16 1 3/16
1 1/4 1 1/4 1 1/4
1 3/8 1 3/8 1 3/8
1 7/16 1 7/16 1 7/16
1 1/2 1 1/2 1 1/2
1 5/8 1 5/8 1 5/8
1 3/4 1 3/4 1 3/4
1 15/16 1 15/16 1 15/16
222
2 3/16 2 3/16 2 3/16
2 7/162 7/16
19 20 21 22 23
H80BS19 H80BS20 H80BS21 H80BS22 H80BS23
6.59 6.91 7.24 7.56 7.88
6.0766.3926.7107.0277.344
1 1/2 1 1/21 3/41 3/41 3/4
7.0 8.0 8.9 9.5
10.2
1 1111
1 3/16 1 3/16 1 3/16 1 3/16 1 3/16
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 3/8 1 3/8 1 3/8 1 3/8 1 3/8
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 5/8 1 5/8 1 5/8 1 5/8 1 5/8
1 3/4 1 3/4 1 3/4 1 3/4 1 3/4
1 15/16 1 15/16 1 15/16 1 15/16 1 15/16
22222
2 3/16 2 3/16 2 3/16 2 3/16 2 3/16
2 7/162 7/162 7/162 7/162 7/16
24 25 26 27 28
H80BS24 H80BS25 H80BS26 H80BS27 H80BS28
8.20 8.52 8.84 9.16 9.48
7.6617.9798.2968.6148.931
1 3/41 3/4 2 2 2
10.8 11.4 14.0 14.7 15.3
1 1
1 3/16 1 3/16
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 3/8 1 3/8 1 3/8 1 3/8 1 3/8
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 5/8 1 5/8 1 5/8 1 5/8 1 5/8
1 3/4 1 3/4 1 3/4 1 3/4 1 3/4
1 15/16 1 15/16 1 15/16 1 15/16 1 15/16
22222
2 3/16 2 3/16 2 3/16 2 3/16 2 3/16
2 7/162 7/162 7/162 7/162 7/16
29 30 31 32 33
H80BS29 H80BS30 80BS31 80BS32 80BS33
9.80 10.11 10.43 10.75 11.07
9.2499.2499.884
10.20210.520
2 2 2 2 2
16.4 16.7 18.0 18.8 18.9
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 3/8 1 3/8 1 3/8 1 3/8 1 3/8
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 5/8 1 5/8 1 5/8 1 5/8 1 5/8
1 3/4 1 3/4 1 3/4 1 3/4 1 3/4
1 15/16 1 15/16 1 15/16 1 15/16 1 15/16
22222
2 3/16 2 3/16 2 3/16 2 3/16 2 3/16
2 7/162 7/162 7/162 7/162 7/16
2 15/16 2 15/16 2 15/16 2 15/16 2 15/16
34 35 36 37 38
80BS34 80BS35 80BS36 80BS37 80BS38
11.39 11.71 12.03 12.35 12.67
10.83811.15611.47111.79212.110
2 2 2 2 2
20.6 21.4 22.4 23.9 24.0
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 3/8 1 3/8 1 3/8 1 3/8 1 3/8
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 5/8 1 5/8 1 5/8 1 5/8 1 5/8
1 3/4 1 3/4 1 3/4 1 3/4 1 3/4
1 15/16 1 15/16 1 15/16 1 15/16 1 15/16
22222
2 3/16 2 3/16 2 3/16 2 3/16 2 3/16
2 7/162 7/162 7/162 7/162 7/16
2 15/16 2 15/16 2 15/16 2 15/16 2 15/16
39 40 41 42 43
80BS39 80BS40 80BS41 80BS42 80BS43
12.99 13.31 13.63 13.94 14.26
12.42812.74613.06413.38213.700
2 2 2 2 2
24.9 26.0 27.1 28.0 29.3
1 1/4 1 1/4
1 3/8 1 3/8 1 3/8 1 3/8 1 3/8
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 5/8 1 5/8 1 5/8 1 5/8 1 5/8
1 3/4 1 3/4 1 3/4 1 3/4 1 3/4
1 15/16 1 15/16 1 15/16 1 15/16 1 15/16
22222
2 3/16 2 3/16 2 3/16 2 3/16 2 3/16
2 7/162 7/162 7/162 7/162 7/16
2 15/16 2 15/16 2 15/16 2 15/16 2 15/16
44 45 46 47 48
80BS44 80BS45 80BS46 80BS47 80BS48
14.58 14.90 15.22 15.54 15.86
14.01814.33614.65414.97215.290
2 2 2 2 2
29.3 30.7 32.4 33.3 34.8
1 3/8 1 3/8 1 3/8 1 3/8 1 3/8
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 5/8 1 5/8 1 5/8 1 5/8 1 5/8
1 3/4 1 3/4 1 3/4 1 3/4 1 3/4
1 15/16 1 15/16 1 15/16 1 15/16 1 15/16
22222
2 3/16 2 3/16 2 3/16 2 3/16 2 3/16
2 7/162 7/162 7/162 7/162 7/16
2 15/16 2 15/16 2 15/16 2 15/16 2 15/16
49 50 51 52 53
80BS49 80BS50 80BS51 80BS52 80BS53
16.18 16.50 16.81 17.13 17.45
15.60815.92616.24416.56216.880
2 2 2 2 2
35.1 36.6 38.5 40.3 42.2
1 3/8 1 3/8 1 3/8 1 3/8 1 3/8
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 5/8 1 5/8 1 5/8 1 5/8 1 5/8
1 3/4 1 3/4 1 3/4 1 3/4 1 3/4
1 15/16 1 15/16 1 15/16 1 15/16 1 15/16
22222
2 3/16 2 3/16 2 3/16 2 3/16 2 3/16
2 7/162 7/162 7/162 7/162 7/16
2 15/16 2 15/16 2 15/16 2 15/16 2 15/16
54 55 56 57 58
80BS54 80BS55 80BS56 80BS57 80BS58
17.77 18.09 18.41 18.73 19.04
17.19817.51617.83518.15318.471
2 2 2 2 2
44.0 46.3 47.3 48.9 50.6
1 3/8 1 3/8 1 3/8 1 3/8 1 3/8
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 5/8 1 5/8 1 5/8 1 5/8 1 5/8
1 3/4 1 3/4 1 3/4 1 3/4 1 3/4
1 15/16 1 15/16 1 15/16 1 15/16 1 15/16
22222
2 3/16 2 3/16 2 3/16 2 3/16 2 3/16
2 7/162 7/162 7/162 7/162 7/16
2 15/16 2 15/16 2 15/16 2 15/16 2 15/16
59 60
80BS59 80BS60
19.36 19.68
18.78919.107
22
52.2 58.8
1 3/8 1 3/8
1 7/16 1 7/16
1 1/2 1 1/2
1 5/8 1 5/8
1 3/4 1 3/4
1 15/16 1 15/16
22
2 3/16 2 3/16
2 7/162 7/16
2 15/16 2 15/16
Sprockets with “H” suffix have hardened teeth.
Superior Materials Make Superior Products60
All dimensions in inches.
80 Sprockets1” PitchSingle - Type C
No.of
Teeth Catalog Number
Diameters Bore Hub Approx. Weight (lbs.)
OutsideDiameter Pitch Diameter Minimum Maximum Diameter
LengthThru Bore
11 12 13 14 15 16
H80C11 H80C12 H80C13 H80C14 H80C15 H80C16
4.01 4.33 4.66 4.98 5.30 5.63
3.5503.8644.1794.4944.8105.126
1 1 1 1 1 1
1 5⁄8 1 7⁄8 2 2 1⁄4 2 1⁄2 2 3⁄4
2 29⁄32 *3 1⁄8 *3 1⁄64 3 11⁄32 3 13⁄16 4
2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄8
3.94.35.36.47.88.8
TYPE C
Double Single - Type ANo.of
TeethCatalogNumber
Diameters Bore
E
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum
1314151617
181920212223
DS80A13HDS80A14HDS80A15HDS80A16HDS80A17H
DS80A18HDS80A19HDS80A20HDS80A21HDS80A22HDS80A23H
4.664.985.305.635.95
6.276.596.917.247.567.88
4.1794.4944.8105.1265.442
5.7596.0766.3926.7107.0277.344
11111
111111
22 1/42 3/82 11/162 13/16
3 1/83 1/43 1/23 3/43 7/83 7/8
3 1/643 11/323 13/1644 5/16
4 41/644 61/645 9/325 19/325 59/646 15/64
6.57.79.19.5
10.8
12.112.814.016.518.420.5
Sprockets with “H” suffix have hardened teeth.
TYPE A
HubDiameter
LengthThru Bore
.459Nominal
E
1.625
.575Nominal
2.188
www.BlackStarPT.com 61
All dimensions in inches.
Double Single - TL Style
No. of
Teeth
Catalog Number Bushing Size
Diameters
Type
Bore Dimensions Approx. Weight (lbs.)
Outside Diameter Pitch Diameter Minimum Maximum E L2
BushingOnly
Sprocket Only
17 18 19 20 21
22 23
DS80ATL17H DS80ATL18H DS80ATL19H DS80ATL20H DS80ATL21H
DS80ATL22H DS80ATL23H
2517 2517 3020 3020 3020
3020 3020
5.95 6.27 6.59 6.91 7.24
7.56 7.88
5.442 5.759 6.076 6.392 6.710
7.027 7.344
AAAAA
AA
1⁄2 1⁄2 15⁄16 15⁄16 15⁄16
15⁄16 15⁄16
2 1⁄2 2 1⁄2 3 3 3
3 3
4 5⁄16 4 41⁄64 4 61⁄64 5 9⁄32 5 19⁄32
5 59⁄64 6 15⁄64
1 3⁄4 1 3⁄4 2 2 2
2 2
3.03.05.45.45.4
5.45.4
7.6 8.7 9.7
10.0 12.0
13.0 14.5
Double Single - Split Taper Style
No.of
Teeth
Catalog Number
Bushing Size
Diameters
Type
Bore Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter Minimum Maximum E L2
BushingOnly
SprocketOnly
17 19 20 21 23
DS80Q17H DS80Q19H DS80Q20H DS80R21H DS80R23H
Q1 Q1 Q1 R1 R1
5.95 6.59 6.91 7.24 7.88
5.442 6.076 6.392 6.710 7.344
BBBBB
3⁄4 3⁄4 3⁄4 1 1⁄8 1 1⁄8
2 11⁄16 2 11⁄16 2 11⁄16 3 3⁄4 3 3⁄4
4 5⁄16 4 61⁄64 5 9⁄32 5 19⁄32 6 15⁄64
3 15⁄64 3 15⁄64 3 15⁄64 3 23⁄64 3 23⁄64
3.53.53.57.57.5
7.2 10.5 12.2 12.8 13.3
Sprockets with “H” suffix have hardened teeth.
TYPE A
80 Sprockets1” Pitch
2.188
L2 E
1.625
.575Nominal
TYPE B
1L
W
E2L
C
OutsideDiameter
Superior Materials Make Superior Products62
All dimensions in inches.
80 Sprockets1” PitchSingle - Split Taper Style No.of
Teeth Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
BushingOnly
SprocketOnly
10 11 11 12 13
14 14 15 15 16
16 17 17 18 18
19 19 20 21 22
23 24 25 26 27
28 29 30 31 32
33 34 35 36 36
37 38 39 40 40
41 42 42 44 45
45 47 48 48 50
54 54 56 60 60
70 70 72 72 80
84 96 112
H80H10 H80H11 H80P11 H80P12 H80P13 H80P14 H80Q14 H80P15 H80Q15 H80P16
H80Q16 H80P17 H80Q17 H80P18 H80Q18
H80P19 H80Q19 H80Q20 H80Q21 H80Q22
H80Q23 H80Q24 H80Q25 H80Q26 H80Q27
H80Q28 H80Q29 H80Q30 80Q31 80Q32
80Q33 80Q34 80Q35 80Q36 80R36
80Q37 80Q38 80R39 80Q40 80R40
80R41 80Q42 80R42 80R44 80Q45
80R45 80R47 80Q48 80R48 80R50
80Q54 80R54 80R56 80Q60 80R60
80Q70 80R70 80Q72 80R72 80R80
80R84 80R96 80S112
H H P1 P1 P1
P1 Q1 P1 Q1 P1
Q1 P1 Q1 P1 Q1
P1 Q1 Q1 Q1 Q1
Q1 Q1 Q1 Q1 Q1
Q1 Q1 Q1 Q1 Q1
Q1 Q1 Q1 Q1 R1
Q1 Q1 R1 Q1 R1
R1 Q1 R1 R1 Q1
R1 R1 Q1 R1 R1
Q1 R1 R1 Q1 R1
Q1 R1 Q1 R1 R1
R1 R1 S1
3.68 4.01 4.01 4.33 4.66
4.98 4.98 5.30 5.30 5.63
5.63 5.95 5.95 6.27 6.27
6.59 6.59 6.91 7.24 7.56
7.88 8.20 8.52 8.84 9.16
9.48 9.80
10.11 10.43 10.75
11.07 11.39 11.71 12.03 12.03
12.35 12.67 12.99 13.31 13.31
13.63 13.94 13.94 14.58 14.90
14.90 15.54 15.86 15.86 16.50
17.77 17.77 18.41 19.68 19.68
22.87 22.87 23.50 23.50 26.05
27.33 31.15 36.24
3.236 3.550 3.550 3.864 4.179
4.494 4.494 4.810 4.810 5.126
5.126 5.442 5.442 5.759 5.759
6.076 6.076 6.392 6.710 7.027
7.344 7.661 7.979 8.296 8.614
8.931 9.249 9.567 9.885
10.202
10.520 10.838 11.156 11.474 11.474
11.792 12.110 12.428 12.746 12.746
13.064 13.382 13.382 14.018 14.336
14.336 14.972 15.290 15.290 15.926
17.198 17.198 17.835 19.107 19.107
22.289 22.289 22.926 22.926 25.471
26.744 30.563 36.655
3 3 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 5 5
5 5 5
1 1/2 1 1/2 1 3/4 1 3/4 1 3/4
1 3/4 2 11/16 1 3/4 2 11/16 1 3/4
2 11/16 1 3/4 2 11/16 1 3/4 2 11/16
1 3/4 2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 2 11/16 2 11/16 2 11/16 3 3/4
2 11/16 2 11/16 3 3/4 2 11/16 3 3/4
3 3/4 2 11/16 3 3/4 3 3/4 2 11/16
3 3/4 3 3/4 2 11/16 3 3/4 3 3/4
2 11/16 3 3/4 3 3/4 2 11/16 3 3/4
2 11/16 3 3/4 2 11/16 3 3/4 3 3/4
3 3/4 3 3/4 4 1/4
2 3/32 1 1/2 2 11/32 2 3/16 2 3/16
2 3/16 2 25/32 2 3/16 2 25/32 2 3/16
2 25/32 2 3/16 2 25/32 2 3/16 2 25/32
2 3/16 2 25/32 2 25/32 2 25/32 2 25/32
2 25/32 2 25/32 2 25/32 2 25/32 2 25/32
2 25/32 2 25/32 2 25/32 2 25/32 2 25/32
2 25/32 2 25/32 2 25/32 2 25/32 3 5/32
2 25/32 2 25/32 3 5/32 2 25/32 3 5/32
3 5/32 2 25/32 3 5/32 3 5/32 2 25/32
3 5/32 3 5/32 2 25/32 3 5/32 3 5/32
2 25/32 3 5/32 3 5/32 2 25/32 3 5/32
2 25/32 3 5/32 2 25/32 3 5/32 3 5/32
3 5/32 3 5/32 4 3/4
11/4 1 1/4 1 15/16 1 15/16 1 15/16
1 15/16 2 1/2 1 15/16 2 1/2 1 15/16
2 1/2 1 15/16 2 1/2 1 15/16 2 1/2
1 15/16 2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 2 1/2 2 1/2 2 7/8
2 1/2 2 1/2 2 7/8 2 1/2 2 7/8
2 7/8 2 1/2 2 7/8 2 7/8 2 1/2
2 7/8 2 7/8 2 1/2 2 7/8 2 7/8
2 1/2 2 7/8 2 7/8 2 1/2 2 7/8
2 1/2 2 7/8 2 1/2 2 7/8 2 7/8
2 7/8 2 7/8 4 3/8
21/32 1/16 5/32 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 1 7/16 1 7/16
1 7/16 1 7/16 2 3/4
2 1/2 2 1/2 3 3 3
3 4 1/8 3 4 1/8 3
4 1/8 3 4 1/8 3 4 1/8
3 4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 4 1/8 4 1/8 4 1/8 5 3/8
4 1/8 4 1/8 5 3/8 4 1/8 5 3/8
5 3/8 4 1/8 5 3/8 5 3/8 4 1/8
5 3/8 5 3/8 4 1/8 5 3/8 5 3/8
4 1/8 5 3/8 5 3/8 4 1/8 5 3/8
4 1/8 5 3/8 4 1/8 5 3/8 5 3/8
5 3/8 5 3/8 6 3/8
1 21/64 3/4 1 17/32 1 3/8 1 3/8
1 3/8 1 15/16 1 3/8 1 15/16 1 3/8
1 15/16 1 3/8 1 15/16 1 3/8 1 15/16
1 3/8 1 15/16 1 15/16 1 15/16 1 15/16
1 15/16 1 15/16 1 15/16 1 15/16 1 15/16
1 15/16 1 15/16 1 15/16 1 15/16 1 15/16
1 15/16 1 15/16 1 15/16 1 15/16 2 5/16
1 15/16 1 15/16 2 5/16 1 15/16 2 5/16
2 5/16 1 15/16 2 5/16 2 5/16 1 15/16
2 5/16 2 5/16 1 15/16 2 5/16 2 5/16
1 15/16 2 5/16 2 5/16 1 15/16 2 5/16
2 5/16 2 5/16 2 5/16 7/8 7/8
7/8 7/8 1 1/8
0.80.81.31.31.3
1.33.51.33.51.3
3.51.33.51.33.5
1.33.53.53.53.5
3.53.53.53.53.5
3.53.53.53.53.5
3.53.53.53.57.5
3.53.57.53.57.5
7.53.57.57.53.5
7.57.53.57.57.5
3.57.57.53.57.5
3.57.53.57.57.5
7.57.5
13.5
2.0 1.3 1.6 2.0 2.4
2.6 2.9 3.0 3.4 3.5
4.6 3.8 5.3 4.4 6.0
4.9 6.5 7.0 7.3 8.2
8.8 9.1 9.6
10.6 10.9
12.4 12.6 13.4 13.9 14.8
15.5 16.3 17.8 18.1 19.5
18.5 20.0 22.8 21.9 23.4
23.9 23.8 25.4 27.2 27.8
28.5 31.0 30.8 32.3 35.1
38.5 40.8 44.0 46.8 47.3
60.0 63.5 67.5 69.4 85.0
90.0 110.0 165.0
Sprockets with “H” prefix have hardened teeth.
TYPE 4
TYPE 3
0.575Nominal
O.L.
H
P
C L
OutsideDiameter
C L
P
H
TO.L.
OutsideDiameter
H
.L.O
C
L
TP
OutsideDiameter
TYPE 5
www.BlackStarPT.com 63
All dimensions in inches.
80 Sprockets1” Pitch
Single - QD StyleNo.of
TeethCatalogNumber
Bush-ing
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
OutsideDiameter
PitchDIameter L1 L2 C Y P G X
BushingOnly
SprocketOnly
11121314
15161718
19202122
23242526
27283032
33343536
40424548
54607072
808496112
H80SH11H80SH12H80SDS13H80SDS14
H80SK15H80SK16H80SK17H80SK18
H80SK19H80SF20H80SF21H80SF22
H80SF23H80SF24H80SF25H80SF26
H80SF27H80SF28H80SF3080SF32
80SF3380SF3480SF3580SF36
80SF4080SF4280SF4580SF48
80SF5480SF6080E7080E72
80E8080E8480E9680F112
SHSHSDSSDS
SKSKSKSK
SKSFSFSF
SFSFSFSF
SFSFSFSF
SFSFSFSF
SFSFSFSF
SFSFEE
EEEF
4.014.334.664.98
5.305.635.956.27
6.596.917.247.56
7.888.208.528.84
9.169.48
10.1110.75
11.0711.3911.7112.03
13.3113.9414.9015.86
17.7719.6822.8723.50
26.0527.3331.1536.24
3.5503.8644.1794.494
4.8105.1265.4425.759
6.0766.3926.7107.027
7.3447.6617.9798.296
8.6148.9319.567
10.202
10.52010.83811.15611.474
12.74613.38214.33615.290
17.19819.10722.28922.926
25.47126.74430.56335.655
BBBB
BBBB
BBBB
BBBB
BBBB
BBBB
BBBB
BBCC
CCCC
1 5/81 5/822
2 5/82 5/82 5/82 5/8
2 5/82 15/162 15/162 15/16
2 15/162 15/162 15/162 15/16
2 15/162 15/162 15/162 15/16
2 15/162 15/162 15/162 15/16
2 15/162 15/162 15/162 15/16
2 15/162 15/163 1/23 1/2
3 1/23 1/23 1/23 15/16
1 7/161 7/161 1/21 1/2
2 1/82 1/82 1/82 1/8
2 1/82 1/42 1/42 1/4
2 1/42 1/42 1/42 1/4
2 1/42 1/42 1/42 1/4
2 1/42 1/42 1/42 1/4
2 1/42 1/42 1/42 1/4
2 1/42 1/42 5/82 5/8
2 5/82 5/82 5/83 5/8
1 7/161 7/161 1/21 1/2
2 1/82 1/82 1/82 1/8
2 1/82 1/42 1/42 1/4
2 1/42 1/42 1/42 1/4
2 1/42 1/42 1/42 1/4
2 1/42 1/42 1/42 1/4
2 1/42 1/42 1/42 1/4
2 1/42 1/42 15/162 15/16
2 15/162 15/162 15/164
2 11/162 11/163 3/163 3/16
3 7/83 7/83 7/83 7/8
3 7/84 5/84 5/84 5/8
4 5/84 5/84 5/84 5/8
4 5/84 5/84 5/84 5/8
4 5/84 5/84 5/84 5/8
4 5/84 5/84 5/84 5/8
4 5/84 5/866
6666 5/8
21/3221/3247/6447/64
1 19/641 19/641 19/641 19/64
1 19/641 27/641 27/641 27/64
1 27/641 27/641 27/641 27/64
1 27/641 27/641 27/641 27/64
1 27/641 27/641 27/641 27/64
1 27/641 27/641 27/641 27/64
1 27/641 27/647/87/8
7/87/87/81
1 3/161 3/16
1 3/161 3/161 3/162 1/16
15/6415/6411/6411/64
21/3221/3221/3221/32
21/3221/3221/3221/32
21/3221/3221/3221/32
21/3221/3221/3221/32
21/3221/3221/3221/32
21/3221/3221/3221/32
21/3221/321 3/641 3/64
1 3/641 3/641 3/641 59/64
13/1613/163/43/4
1 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/4
1 1/41 1/41 1/41 1/4
1 1/41 1/41 5/81 5/8
1 5/81 5/81 5/82 1/2
1.01.01.01.0
2.02.02.02.0
2.03.03.03.0
3.03.03.03.0
3.03.03.03.0
3.03.03.03.0
3.03.03.03.0
3.03.0
10.010.0
10.010.010.011.5
1.01.41.51.8
2.53.13.53.9
4.45.35.76.3
6.87.58.08.6
9.410.211.313.0
13.514.115.516.9
20.622.425.128.6
36.845.855.659.3
69.274.997.5
134.0
Sprockets with “H” prefix have hardened teeth.
TYPE B TYPE C
Outside Diameter
L1
Y
G
C
X L2
.168Nominal
OutsideDiameterC
L2X
G
Y
L1
T P
Superior Materials Make Superior Products64
All dimensions in inches.
80 Sprockets1” PitchSingle - TL Style
No.of
Teeth
Catalog Number
Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L
C
BushingOnly
Sprocket Only
10 11 12 13
14 15 16 17
18 19 20 21
22 23 24 25
26 27 28 30
32 35 36 40
45 48 54 60
70 80
H80BTL10 H80BTL11 H80BTL12 H80BTL13
H80BTL14 H80BTL15 H80BTL16 H80BTL17
H80BTL18 H80BTL19 H80BTL20 H80BTL21
H80BTL22 H80BTL23 H80BTL24 H80BTL25
H80BTL26 H80BTL27 H80BTL28 H80BTL30
80BTL32 80BTL35 80BTL36 80BTL40
80BTL45 80BTL48 80BTL54 80BTL60
80BTL70 80BTL80
1215 1215 1615 1615
1615 1615 2012 2012
2012 2012 2517 2517
2517 2517 2517 2517
2517 2517 2517 2517
2517 2517 2517 2517
2517 2517 2517 2517
3020 3020
3.68 4.07 4.33 4.66
4.98 5.31 5.63 5.95
6.27 6.59 6.91 7.24
7.56 7.88 8.20 8.52
8.84 9.16 9.48
10.11
10.75 11.71 12.03 13.31
14.90 15.88 17.77 19.68
22.87 26.05
3.236 3.549 3.864 4.179
4.494 4.810 5.126 5.442
5.759 6.076 6.392 6.710
7.027 7.344 7.661 7.979
8.296 8.614 8.931 9.567
10.202 11.156 11.474 12.746
14.336
15.290 17.198 19.107
22.289 25.471
BBBB
BBBB
BBBB
BBBB
BBBB
BBBB
BBBB
BB
1 1⁄4 1 1⁄4 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 2 2
2 2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
3 3
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3-⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
2 2
2 3⁄8 * 2 15⁄32 * 3 * 3
3 11⁄32 3 1⁄2 4 4
3 9⁄16 3 9⁄16 4 1⁄4 4 1⁄4
4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4
4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4
4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4
4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4
5 1⁄4 5 1⁄4
0.60.60.90.9
0.90.91.41.4
1.41.43.03.0
3.03.03.03.0
3.03.03.03.0
3.03.03.03.0
3.03.03.03.0
5.45.4
0.8 0.8 1.2 1.2
1.2 1.2 1.7 1.7
1.7 1.7 1.7 3.5
3.5 3.5 3.5 3.5
3.5 3.5 3.5 3.5
3.5 3.5 3.5 3.5
3.5 3.5 3.5 3.5
6.5 6.5
* Has a recessed groove in the hub for chain clearance.
Sprockets with “H” prefix have hardened teeth.
TYPE B
C
L
.575Nominal
www.BlackStarPT.com 65
All dimensions in inches.
D80 Sprockets1” Pitch
Double - Split Taper Style
No.of Teeth
Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
BushingOnly
SprocketOnly
13 14 15 16
17 18 19 20
21 22 23 24
25 26 27 28
30 36 42 45
48 52 54 60
68 72 76 95
D80P13H D80Q14H D80Q15H D80Q16H
D80Q17H D80Q18H D80Q19H D80R20H
D80R21H D80R22H D80R23H D80R24H
D80R25H D80R26H D80R27H D80R28H
D80R30H D80R36 D80R42 D80R45
D80R48 D80R52 D80R54 D80R60
D80R68 D80R72 D80U76 D80U95
P1 Q2 Q2 Q1
Q1 Q1 Q1 R1
R1 R1 R1 R1
R1 R1 R1 R1
R1 R1 R1 R1
R2 R2 R2 R2
R2 R2 U0 U0
4.66 4.98 5.30 5.63
5.95 6.27 6.59 6.91
7.24 7.56 7.88 8.20
8.52 8.84 9.16 9.48
10.11 12.03 13.94 14.90
15.86 17.13 17.77 19.68
22.23 23.50 24.78 30.83
4.179 4.494 4.810 5.126
5.442 5.759 6.076 6.392
6.710 7.027 7.344 7.661
7.979 8.296 8.614 8.931
9.567 11.474 13.382 14.336
15.290 16.562 17.198 19.107
21.653 22.926 24.198 30.245
13 16 12 13
13 13 13 12
12 12 12 12
12 12 12 12
12 12 12 12
15 15 15 15
15 15 15 15
1 3/4 2 5/8 2 5/8 2 11/16
2 11/16 2 11/16 2 11/16 3 3/4
3 3/4 3 3/4 3 3/4 3 3/4
3 3/4 3 3/4 3 3/4 3 3/4
3 3/4 3 3/4 3 3/4 3 3/4
3 5/8 3 5/8 3 5/8 3 5/8
3 5/8 3 5/8 5 1/2 51/2
2 19/32 4 5/8 3 25/32 2 25/32
2 25/32 2 25/32 2 25/32 3 5/32
3 5/32 3 5/32 3 5/32 3 5/32
3 5/32 3 5/32 3 5/32 3 5/32
3 5/32 3 5/32 3 5/32 3 5/32
5 5/32 5 5/32 5 5/32 5 5/32
5 5/32 5 5/32 5 23/32 5 23/32
1 15/16 3 1/2 3 1/2 2 1/2
2 1/2 2 1/2 2 1/2 2 7/8
2 7/8 2 7/8 2 7/8 2 7/8
2 7/8 2 7/8 2 7/8 2 7/8
2 7/8 2 7/8 2 7/8 2 7/8
4 7/8 4 7/8 4 7/8 4 7/8
4 7/8 4 7/8 5 1/4 5 1/4
13/32 27/32 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
2 9/32 2 9/32 2 9/32 2 9/32
2 9/32 2 9/32 2 1/32 2 1/32
3 4 1/8 4 1/8 4 1/8
4 1/8 4 1/8 4 1/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 8 3/8 8 3/8
5/8 1 3/4 13/4 3/4
3/4 3/4 3/4 1 5/32
1 5/32 1 5/32 1 5/32 1 5/32
1 5/32 1 5/32 1 5/32 1 5/32
1 5/32 1 5/32 1 5/32 1 5/32
7/8 7/8 7/8 7/8
7/8 7/8 1 1/2 1 1/2
1.34.54.53.5
3.53.53.57.5
7.57.57.57.5
7.57.57.57.5
7.57.57.57.5
11.011.011.011.0
11.011.030.030.0
3.6 5.4 5.4 4.8
6.0 7.3 8.5 7.8
9.4 10.8 12.3 14.1
15.8 18.1 20.4 22.7
26.8 41.6 58.0 68.0
86.0
103.0 111.0 135.0
176.0
198.0 219.0 342.0
Sprockets with “H” suffix have hardened teeth.
TYPE 12
1.710
.557
OutsideDiameter
H
O.L.
P
C L
TYPE 13
1.710
.557
OutsideDiameter
P
H
LC
O.L.
TYPE 15
1.710
OutsideDiameter
CP
L
H
O.L.
.557
TYPE 16
OL
OutsideDiameter
LC
.557
1.710P
H
Superior Materials Make Superior Products66
All dimensions in inches.
D80 Sprockets1” PitchDouble - Type B & C
No.of
Teeth Catalog Number
Diameters
Type
Bore Hub
Approx. Weight (lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
10 11 12 13
14 15 16 17
18 19 20 21
22 23 24 25
26 30 32 35
36 42 45 52
60 68 76 95
D80B10H D80B11H D80B12H D80B13H
D80B14H D80B15H D80B16H D80B17H
D80B18H D80B19H D80B20H D80B21H
D80B22H D80B23H D80B24H D80B25H
D80B26H D80B30H D80B32 D80B35
D80B36 D80B42 D80B45 D80C52
D80C60 D80C68 D80C76 D80C95
3.68 4.01 4.33 4.66
4.98 5.30 5.63 5.95
6.27 6.59 6.91 7.24
7.56 7.88 8.20 8.52
8.84 10.11 10.75 11.71
12.03 13.94 14.90 17.13
19.68 22.23 24.78 30.83
3.236 3.549 3.864 4.179
4.494 4.810 5.126 5.442
5.759 6.076 6.392 6.710
7.027 7.344 7.661 7.979
8.2969.567
10.20211.156
11.47113.38214.33616.562
19.10721.65324.19830.245
B B B B
B B B B
B B B B
B B B B
B B B B
B B B C
C C C C
1 1 1 1
1 1 1 1
1 1 1 1
1 1 1 1
1 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 3⁄4 1 7⁄8 2 1⁄4 2 3⁄8 2 1⁄2 2 3⁄4 3
3 1⁄4 3 5⁄16 3 5⁄16 3 5⁄16
3 5⁄16 3 5⁄16 3 1⁄2 3 1⁄2
3 1⁄2 3 3⁄4 3 3⁄4 3 3⁄4
3 3⁄4 3 3⁄4 3 3⁄4 3 3⁄4
3 3⁄4 3 13⁄16 3 13⁄16 4
2 9⁄16 * 2 1⁄2 2 27⁄32 3 5⁄32
3 15⁄32 3 51⁄64 4 4 27⁄64
4 47⁄64 5 5 5
5 5 5 1⁄4 5 1⁄4
5 1⁄4 5 3⁄4 5 3⁄4 5 3⁄4
5 3⁄4 5 3⁄4 5 3⁄4 5 3⁄4
5 3⁄4 6 6 6
2 3⁄4 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 3⁄4 2 3⁄4
2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4
2 3⁄4 2 3⁄4 2 3⁄4 3
3 3 3 3
3 1⁄8 3 1⁄8 3 1⁄8 3 3⁄4
3 3⁄4 4 4 4 1⁄4
3.6 4.0 5.1 6.3
7.6 9.0
11.0 13.2
15.0 17.0 18.2 19.6
21.0 22.8 25.1 28.3
29.9 39.5 43.8 49.1
54.2 71.5 73.5 78.4
93.3 96.2
113.0 165.0
Has recessed groove in hub for chain clearance.
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” suffix have hardened teeth.
HubDiameter
LengthThru Bore
.575Nominal
1.710
TYPE B
.575Nominal
HubDiameter
1.710
LengthThru Bore
TYPE C
www.BlackStarPT.com 67
All dimensions in inches.
Double - QD Style
No.of
Teeth Catalog Number
Bush-
ing
Diameters
Type
Maximum Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L1
L2
C
Y
P G V X
BushingOnly
SprocketOnly
36 42 45 52
60 68 76 95
D80E36 D80E42 D80E45 D80E52
D80E60 D80E68 D80E76 D80F95
E E E E
E E E F
12.03 13.94 14.90 17.13
19.68 22.23 24.78 30.83
11.474 13.382 14.336 16.562
19.107 21.653 24.198 30.245
1 1 1 3
3 3 3 4
3 1⁄2 3 1⁄2 3 1⁄2 3 1⁄2
3 1⁄2 3 1⁄2 3 1⁄2 3 15⁄16
2 5⁄8 2 5⁄8 2 5⁄8 2 5⁄8 2 5⁄8 2 5⁄8 2 5⁄8 3 5⁄8
2 15⁄16 2 15⁄16 2 15⁄16 2 15⁄16 2 15⁄16 2 15⁄16 2 15⁄16 4
6 6 6 6
6 6 6 6 5⁄8
51⁄64 51⁄64 51⁄64 51⁄64
51⁄64 51⁄64 51⁄64 1
1⁄8 1⁄8 1⁄8 1⁄8
1⁄8 1⁄8 1⁄8 5 9⁄64
51⁄64
3⁄32
3⁄32 3⁄32 3⁄32
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 5⁄8 1 5⁄8 2 1⁄2
10.010.010.010.0
10.010.010.011.5
38.2 55.3 64.6 58.2
68.2 74.2 90.1
140.0
D80 Sprockets1” Pitch
TYPE 1
1L
2L
X
C
T
Y W P
G
OutsideDiameter
TYPE 3
1L
2L
C
Y W P
T
G
X
OutsideDiameter
TYPE 4
1L
TY W P
C
X2L
OutsideDiameter
Superior Materials Make Superior Products68
All dimensions in inches.
D80 Sprockets1” PitchDouble - TL Style
No.of
Teeth
Catalog Number
Bushing
Diameter
Type
Maximum Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L
C
BushingOnly
Sprocket Only
13 14 15 16
17 18 19 20
21 25 30 36
42 45 52 60
68 76 95
D80ATL13H D80ATL14H D80ATL15H D80ATL16H
D80ATL17H D80ATL18H D80BTL19H D80BTL20H
D80BTL21H D80BTL25H D80CTB30H D80CTB36
D80CTL42 D80CTL45 D80CTL52 D80CTL60
D80CTL68 D80CTL76 D80CTL95
1615 2012 2012 2517
2517 2517 3020 3020
3020 3020 3020 3020
3020 3020 3020 3020
3020 3020 3020
4.66 4.98 5.31 5.63
5.95 6.27 6.59 6.91
7.24 8.55
10.11 12.03
13.94 14.90 17.13 19.68
22.23 24.78 30.83
4.179 4.494 4.810 5.126
5.442 5.759 6.076 6.392
6.710 7.979 9.567
11.474
13.392 14.336 16.562 19.107
21.653 24.198 30.245
A A A A
A A B B
B B C C
C C1 C1 C1
C1 C1 C1
1 5⁄8 2 2 2 1⁄2
2 1⁄2 2 1⁄2 3 3
3 3 3 3
3 3 3 3
3 3 3
1 1⁄2 1 1⁄4 1 1⁄4 1 3⁄4
1 3⁄4 1 3⁄4 2 2
2 2 2 2
2 2 2 2
2 2 2
3 1⁄8
3 1⁄8 3 1⁄8 5 5 1⁄4
5 9⁄16 6 7⁄8 5 1⁄4 5 1⁄4
5 1⁄4 5 1⁄4 5 1⁄4 5 1⁄4
5 1⁄4 5 1⁄4 5 1⁄4
0.91.41.43.0
3.03.05.45.4
5.45.45.45.4
5.45.45.45.4
5.45.45.4
3.4 3.5 4.3 3.8
5.1 6.4 5.6 7.1
8.9 16.5 25.1 39.4
36.4 41.4 56.2 66.3
72.0 89.1
112.0
Sprockets with “H” suffix have hardened teeth.
TYPE A
C
L
.557Nominal
1.710
TYPE B
C
L
.557Nominal
1.710
TYPE C
L
C
.557Nominal
1.710
TYPE C1
L
C
.557Nominal
1.710
www.BlackStarPT.com 69
All dimensions in inches.
T80 Sprockets1” Pitch
Triple - Split Taper Style
No. of Teeth
Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
Bushing Only
Sprocket Only
13 14 15 16
17 18 19 20
21 22 23 24
25 26 27 28
30 36 42 45
52 60 68 76 95
T80P13H T80Q14H T80Q15H T80Q16H
T80Q17H T80Q18H T80Q19H T80R20H
T80R21H T80R22H T80R23H T80R24H
T80R25H T80R26H T80R27H T80R28H
T80R30H T80S36 T80S42 T80S45
T80U52 T80U60 T80U68 T80U76 T80U95
P2 Q2 Q2 Q2
Q2 Q2 Q2 R1
R1 R1 R1 R1
R1 R1 R1 R1
R1 S1 S1 S1
U0 U0 U0 U0 U0
4.66 4.98 5.30 5.63
5.95 6.27 6.59 6.91
7.24 7.56 7.88 8.20
8.52 8.84 9.16 9.48
10.11
12.03 13.94 14.90
17.13
19.68 22.23 24.78 30.83
4.179 4.494 4.810 5.126
5.442 5.759 6.076 6.392
6.710 7.027 7.344 7.661
7.979 8.296 8.614 8.931
9.567 11.474 13.382 14.336
16.562 19.107 21.653 24.198 30.245
24 27 22 25
24 24 24 24
24 24 25 25
25 25 25 25
25 22 22 22
22 22 22 22 25
1 3/4 2 5/8 2 5/8 2 5/8
2 5/8 2 5/8 2 5/8 3 3/4
3 3/4 3 3/4 3 3/4 3 3/4
3 3/4 3 3/4 3 3/4 3 3/4
3 3/4 4 1/4 4 1/4 4 1/4
5 1/2 5 1/2 5 1/2 5 1/2 5 1/2
3 3/4 5 25/32 4 29/32 3 7/8
3 29/32 3 29/32 3 29/32 4 1/32
4 1/32 4 1/32 3 5/32 3 5/32
3 5/32 3 5/32 3 5/32 3 5/32
3 5/32 5 1/8 5 1/8 5 1/8
5 23/32 5 23/32 5 23/32 5 23/32 5 55/64
2 15/16 3 1/2 3 1/2 3 1/2
3 1/2 3 1/2 3 1/2 2 7/8
2 7/8 2 7/8 2 7/8 2 7/8
2 7/8 2 7/8 2 7/8 2 7/8
2 7/8 4 3/8 4 3/8 4 3/8
5 1/4 5 1/4 5 1/4 5 1/4 5 1/4
9/16 2 1 1/8 3/32
1/8 1/8 1/8 7/8
7/8 7/8 0 0
0 0 0 0
0 0 0 0
0 0 0 0 1/32
3 4 1/8 4 1/8 4 1/8
4 1/8 4 1/8 4 1/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 6 3/8 6 3/8 6 3/8
8 3/8 8 3/8 8 3/8 8 3/8 8 3/8
5/8 1 3/4 1 3/4 3/4
3/4 3/4 3/4 7/8
7/8 7/8 0 0
0 0 0 0
0 1 1/2 1 1/2 1 1/2
1 25/32 1 25/32 1 25/32 1 25/32 1 13/32
1.54.54.54.5
4.54.54.57.5
7.57.57.57.5
7.57.57.57.5
7.513.513.513.5
30.030.030.030.030.0
5.7 7.5 8.1 9.3
9.8 12.0 13.9 10.2
12.4 14.6 15.9 18.5
20.3 23.4 25.8 28.1
33.3 67.0 96.1
112.0
150.0 207.0 271.0 344.0 183.0
Sprockets with “H” suffix have hardened teeth.
TYPE 22
C
.557
2.863
P
L
OutsideDiameter
H
O.L.
.5572.863 P
LC
OutsideDiameter
H
OL
TYPE 24
L
2.863
C
.557P
OutsideDiameter H
O.L.
TYPE 27TYPE 25
P2.863C
.557
L
OutsideDiameter H
O.L.
Superior Materials Make Superior Products70
All dimensions in inches.
T80 Sprockets1” PitchTriple - Type B & C
No.of
Teeth Catalog Number
Diameters
Type
Bore Hub
Approx. Weight (lbs.)
OutsideDiameter
Pitch Diameter Minimum Maximum Diameter
Length Thru Bore
10 11 12 13
14 15 16 17
18 19 20 21
22 23 24 25
26 30 32 35
36 42 45 52
60 68 76 95
T80B10H T80B11H T80B12H T80B13H
T80B14H T80B15H T80B16H T80B17H
T80B18H T80B19H T80B20H T80B21H
T80B22H T80B23H T80B24H T80B25H
T80B26H T80B30H T80B32 T80B35
T80B36 T80B42 T80B45 T80C52
T80C60 T80C68 T80C76 T80C95
3.68 4.01 4.33 4.66
4.98 5.30 5.63 5.95
6.27 6.59 6.91 7.24
7.56 7.88 8.20 8.52
8.84 10.11 10.75 11.71
12.03 13.94 14.90 17.13
19.68 22.23 24.78 30.83
3.2363.5503.8644.179
4.494 4.810 5.126 5.442
5.759 6.076 6.392 6.710
7.027 7.344 7.661 7.979
8.2969.567
10.20211.156
11.47113.38214.33616.562
19.10721.65324.19830.245
BBBB
BBBB
BBBB
BBBB
BBBB
BBBC
CCCC
1 1 1 1
1 1 1 1
1 1 1 1
1 1 1 1
1 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 ⁄2 1 3⁄4 1 7⁄8 2 1⁄4
2 3⁄8 2 1⁄2 2 3⁄4 3
3 1⁄4 3 5⁄16 3 5⁄16 3 5⁄16
3 5⁄16 3 5⁄16 3 1⁄2 3 1⁄2
3 1⁄2 3 3⁄4 3 3⁄4 3 3⁄4
3 3⁄4 3 3⁄4 3 3⁄4 3 3⁄4
3 3⁄4 3 13⁄16 3 13⁄16 4
2 9⁄16 2 1⁄2 2 27⁄32 3 5⁄32
3 15⁄32 3 51⁄64 4 4 27⁄64
4 47⁄64 5 5 5
5 5 5 1⁄4 5 1⁄4
5 1⁄4 5 3⁄4 5 3⁄4 5 3⁄4
5 3⁄4 5 3⁄4 5 3⁄4 5 3⁄4
5 3⁄4 6 6 6
2 3⁄4 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 3⁄4 2 3⁄4
2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4
2 3⁄4 2 3⁄4 2 3⁄4 3
3 3 3 3
3 1⁄8 3 1⁄8 3 1⁄8 3 3⁄4
3 3⁄4 4 4 4 1⁄4
3.6 4.0 5.1 6.3
7.6 9.0
11.0 13.2
15.0 17.0 18.2 19.6
21.0 22.8 25.1 28.3
29.9 39.5 43.8 49.1
54.2 71.5 73.5 78.4
93.3 96.2
113.0 165.0
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” suffix have hardened teeth.
.575Nominal
Length Thru Bore
HubDiameter
2.863
TYPE B
.575Nominal
Length Thru Bore
HubDiameter
2.863
TYPE C
www.BlackStarPT.com 71
All dimensions in inches.
Triple - QD Style
No.of
Teeth
Catalog Number
Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L1
L2
C
Y
P
G
X
BushingOnly
Sprocket Only
36 42 45 52
60 68 76 95
T80E36 T80E42 T80E45 T80E52
T80F60 T80F68 T80F76 T80F95
E E E E
F F F F
12.03 13.94 14.90 17.13
19.68 22.23 24.78 30.83
11.474 13.382 14.336 16.562
19.107 21.653 24.198 30.245
B B B1 B1
B1 B1 B1 B1
3 1⁄2 3 1⁄2 3 1⁄2 3 1⁄2
3 15⁄16 3 15⁄16 3 15⁄16 3 15⁄16
3 7⁄64 3 7⁄64 3 7⁄64 3 7⁄64
3 43⁄64 3 43⁄64 3 43⁄64 3 43⁄64
3 27⁄64 3 27⁄64 3 27⁄64 3 27⁄64
4 3⁄64 4 3⁄64 4 3⁄64 4 3⁄64
6 6 6 6
6 5⁄8 6 5⁄8 6 5⁄8 6 5⁄8
1⁄4 1⁄4 1⁄4 1⁄4
13⁄16 13⁄16 13⁄16 13⁄16
31⁄64 31⁄64 31⁄64 31⁄64
3⁄64 3⁄64 3⁄64 3⁄64
1⁄8 1⁄8 1⁄8 1⁄8
1⁄8 1⁄8 1⁄8 1⁄8
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
10.010.010.010.0
11.511.511.511.5
55.1 71.9 65.3 80.0
100.0 120.0 138.0 196.0
T80 Sprockets1” Pitch
TYPE B
C
Y 2.863
L1
0.557Nominal
L2X
TYPE B1
L1
L2
0.557Nominal
2.863Y
C
X
Superior Materials Make Superior Products72
All dimensions in inches.
Maximum bores shown will accom-modate a standard keyseat and a set-screw over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
100 Sprockets1 1/4” PitchSingle - Type B & C Single - Type A
No. ofTeeth
CatalogNumber
Diameters
Type
Bore Hub
Approx.Weight(lbs.)
CatalogNumber
StockBore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
789
10
11121314
15161718
19202122
23242526
27282930
31323334
35363738
39404142
43444546
47484950
51525354
55565758
59607072
7680849096
H100B8H100B9H100B10
H100B11H100B12H100B13H100B14
H100B15H100B16H100B17H100B18
H100B19H100B20H100B21H100B22
H100B23H100B24H100B25H100B26
H100B27H100B28H100B29H100B30
100B32
100B35100B36
100B38
100B39100B40
100B42
100B45
100B48
100C54
100C60100C70100C72
100C76100C80100C84100C90100C96
3.774.184.60
5.015.425.826.23
6.637.037.447.84
8.248.649.049.44
9.8410.2510.6511.05
11.4411.8412.2412.64
13.44
14.6415.04
15.84
16.2316.63
17.43
18.63
19.82
22.21
24.0628.5829.38
30.9732.5734.1636.5538.93
3.2663.6554.045
4.4384.8305.2245.618
6.0136.4086.8037.199
7.5957.9908.3888.784
9.1809.5769.974
10.370
10.76811.16411.56111.959
12.753
13.94514.343
15.138
15.53515.933
16.728
17.920
19.113
21.498
23.88427.86128.658
28.65831.83933.43035.81838.204
BBB
BBBB
BBBB
BBBB
BBBB
BBBB
B
BB
B
BB
B
B
B
C
CCC
CCCCC
1 1 1
1 1 1 1 1/4
1 1/4 1 5/161 5/161 5/16
1 5/161 5/161 5/161 5/16
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4
1 1/4 1 1/4
1 1/4
1 1/4 1 1/4
1 1/4
1 1/2
1 1/2
1 1/2
1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1 1/4 1 5/8 1 7/8
2 1/4 2 1/4 2 31/822 3/4
3 3 3 3
3 3 3 3
3 3 3 3 5/16
3 5/163 5/163 5/163 5/16
3 5/16
3 5/163 5/16
3 5/16
3 5/163 5/16
3 5/16
3 5/16
4
4
4 5 1/4 5 1/4
5 1/4 5 1/4 5 1/4 5 1/4 5 1/4
2 7/16 *2 13/16 *3 1/4 *
3 9/16 *4 *3 7/8 4 3/16
4 1/2 4 1/2 4 1/2 4 1/2
4 1/2 4 1/2 4 1/2 4 1/2
4 1/2 4 1/2 4 1/2 5
5 5 5 5
5
5 5
5
5 5
5
5
6
6
6 7 7
7 7 7 7 7
1 7/8 1 7/8 1 7/8
1 7/8 1 7/8 1 5/8 1 5/8
1 3/4 1 3/4 1 3/4 1 3/4
2 2 2 2
2 2 2 2
2 2 2 2
2
2 1/2 2 1/2
2 1/2
2 1/2 2 1/2
2 1/2
2 1/2
2 1/2
3 1/4
3 1/4 3 3/4 3 3/4
3 3/4 3 3/4 3 3/4 3 3/4 4 1/2
2.33.24.1
5.36.46.67.4
9.29.9
10.811.5
13.114.215.316.1
17.219.219.521.7
23.024.425.026.9
29.8
36.938.0
41.5
43.646.9
50.4
54.0
66.0
78.0
89.0125.0134.0
143.0151.0170.0184.0203.0
H100A7H100A8H100A9H100A10
H100A11H100A12H100A13H100A14
H100A15H100A16H100A17H100A18
H100A19H100A20H100A21H100A22
H100A23H100A24H100A25H100A26
H100A27H100A28H100A29H100A30
100A31100A32100A33100A34
100A35100A36100A37100A38
100A39100A40100A41100A42
100A43100A44100A45100A46
100A47100A48100A49100A50
100A51100A52100A53100A54
100A55100A56100A57100A58
100A59100A60100A70100A72
100A76100A80100A84100A90100A96
1 1 1 1
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
1.21.41.62.0
2.53.03.54.1
4.75.46.17.0
7.88.89.8
10.5
11.812.813.915.0
16.017.419.620.1
21.522.624.126.0
27.230.031.033.0
35.036.039.010.0
43.045.047.048.0
52.054.056.057.0
63.064.064.268.0
70.072.075.876.0
77.080.0
113.0119.0
133.0146.0162.0193.0215.0
Sprockets with “H” prefix have hardened teeth.*Has a recessed groove in the hub for chain clearance.
TYPE A
TYPE B
OutsideDiameter
.692Nominal
HubDiameter
LengthThru Bore
.692Nominal
HubDiameter
LengthThru Bore
.692Nominal
TYPE C
www.BlackStarPT.com 73
All dimensions in inches.
100 Sprockets1 1/4” Pitch
Single - Type CNo.of
Teeth Catalog Number
Outside Diameter
PitchDiameter
Bore Hub Approx. Weight(lbs.)Stock Recommended Max. Diameter
Length Thru Bore
10 11 12 13 14
H100C10 H100C11 H100C12 H100C13 H100C14
4.60 5.01 5.42 5.82 6.23
4.0454.4384.8305.2245.618
1 1 1 1 1 1⁄4
1 7⁄8 2 1⁄4 2 1⁄46 2 3⁄8 2 3⁄4
3 9⁄32 3 9⁄16 4 3 57⁄64 4 3⁄16
2 7⁄8 2 7⁄8 2 7⁄8 2 7⁄8 2 7⁄8
6.1 7.1 8.4
10.012.2
Sprockets with “H” prefix have hardened teeth.
Single - Bored to Size — Keyway and 2 Setscrews
No.of
Teeth Catalog Number
DiametersLength Thru Bore
Approx.Weight(lbs.) Stock Finished Bore Includes Keyway and Setscrews
Outside Diameter
PitchDiameter
8 9
10 11 12
13 14 15 16 17
18 19 20 21 22
23 24 25
H100BS8 H100BS9 H100BS10 H100BS11 H100BS12
H100BS13 H100BS14 H100BS15 H100BS16 H100BS17
H100BS18 H100BS19 H100BS20 H100BS21 H100BS22
H100BS23 H100BS24 H100BS25
3.77 4.18 4.60 5.01 5.42
5.82 6.23 6.63 7.03 7.44
7.84 8.24 8.64 9.04 9.44
9.84 10.25 10.65
3.2663.6554.0454.4384.830
5.2245.6186.0136.4086.803
7.1997.5957.9908.3888.784
9.1809.5769.974
1 7/8 1 7/8 1 7/8 1 7/8 1 7/8
1 5/8 1 5/81 3/41 3/41 3/4
1 3/42 2 2 2
2 2 2
2.8 3.0 3.9 4.9 6.0
6.2 6.6 8.4 9.0 9.9
10.6 12.1 13.2 14.3 15.1
16.1 18.1 18.4
11 111
1
1 3/16 1 3/16 1 3/16 1 3/16 1 3/16
1 3/16
1 1/4 1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 7/16 1 7/16 1 7/16 1 7/16 1 7/16
1 7/16 1 7/16 1 7/16
1 15/16 1 15/16
1 15/16 1 15/16 1 15/16 1 15/16 1 15/16
1 15/16 1 15/16 1 15/16 1 15/16 1 15/16
1 15/16 1 15/16 1 15/16
2 2
2 2 2 2 2
2 2 2 2 2
2 2 2
2 3/16 2 3/16
2 3/16 2 3/16 2 3/16 2 3/16 2 3/16
2 3/16 2 3/16 2 3/16 2 3/16 2 3/16
2 3/16 2 3/16 2 3/16
2 7/16 2 7/16
2 7/16 2 7/16 2 7/16 2 7/16 2 7/16
2 7/16 2 7/16 2 7/16
2 15/16 2 15/16
2 15/16 2 15/16 2 15/16 2 15/16 2 15/16
2 15/16 2 15/16 2 15/16
Hub diameters vary to suit different bore sizes. NOTE: KEYWAY IS ON CENTER LINE OF TOOTH.
LengthThru Bore
.692Nominal
HubDiameter
LengthThru Bore
.692Nominal
BORED TO SIZE TYPE C
Superior Materials Make Superior Products74
All dimensions in inches.
Double Single - Type A
No.of
Teeth
Catalog Number
Diameters Bore
E
Approx.Weight(Lbs.)
Outside Diameter
Pitch Diameter Minimum Maximum
13 14 15 16 17
18 19 20 21
DS100A13H DS100A14HDS100A15HDS100A16HDS100A17H
DS100A18HDS100A19HDS100A20HDS100A21H
5.82 6.23 6.63 7.03 7.44
7.84 8.24 8.64 9.04
5.223 5.617 6.012 6.407 6.803
7.198 7.595 7.991 8.387
1 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
2 1⁄2 2 3⁄4 3 1⁄16 3 1⁄4 3 5⁄8
3 3⁄4 4 3⁄16 4 3⁄16 5 1⁄4
3 25⁄32 4 3⁄16 4 19⁄32 5 5 13⁄32
5 51⁄64 6 13⁄64 6 39⁄64 7
11.2 13.5 16.8 19.3 21.5
23.0 25.0 26.5 29.0
100 Sprockets1 1/4” Pitch
Double Single - TL Style
No. of
Teeth Catalog Number Bushing Size
Diameters
Type
Bore Dimensions Approx. Weight (lbs.)
Outside Diameter Pitch Diameter Minimum Maximum E L2 Bushing Only Sprocket Only
15 16 17 18 19
20 21
DS100ATL15H DS100ATL16H DS100ATL17H DS100ATL18H DS100ATL19H
DS100ATL20H DS100ATL21H
2517 2517 3020 3020 3020
3020 3020
6.63 7.03 7.44 7.84 8.24
8.64 9.04
6.012 6.407 6.803 7.198 7.595
7.991 8.387
A A A A A
A A
3⁄4 3⁄4 15⁄16 15⁄16 15⁄16
15⁄16 15⁄16
2 1⁄2 2 1⁄2 3 3 3
3 3
4 19⁄32 5 5 13⁄32 5 51⁄64 6 13⁄64
6 39⁄64 7
1 3⁄4 1 3⁄4 2 2 2
1 3⁄4 2
1.71.76.56.56.5
6.56.5
12.5 13.0 14.0 16.0 20.0
27.5 27.5
Double Single - Split Taper Style
No.of
Teeth Catalog Number
Bushing Size
Diameters
Type
Bore Dimensions Approx.
Weight (lbs.)
Outside Diameter
Pitch Diameter Minimum Maximum L1
C E L2 Bushing Only Sprocket Only
17 19 21
DS100R17H DS100R19H DS100R21H
R1 R1 R1
7.44 8.24 9.04
6.803 7.595 8.387
B B B
1 1⁄8 1 1⁄8 1 1⁄8
3 3⁄4 3 3⁄4 3 3⁄4
2 11⁄16 2 11⁄16 2 11⁄16
2 2 2
5 13⁄32 6 13⁄64 7
3 27⁄32 3 27⁄32 3 27⁄32
19.519.519.5
12.5 18.8 23.1
Sprockets with “H” suffix have hardened teeth.
DOUBLE SINGLETYPE A
E
2.000
0.692Nominal
2.688
TYPE B
2.188
.692
E2L
1.625
OutsideDiameter
TL - TYPE A
2.688
L2 E
2.000
2.692Nominal
www.BlackStarPT.com 75
All dimensions in inches.
100 Sprockets1 1/4” Pitch
OutsideDiameter
L1
Y
G
C
XL2
0.692Nominal
TYPE 1
OutsideDiameter
C
L2X
G
Y
L1
T P
TYPE 2
OutsideDiameterC
L2X
G
Y
L1.692NominalP
TYPE 3
Single - QD StyleNo.of
TeethCatalogNumber Bushing
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
OutsideDiameter
PitchDiameter L1 L2 C Y P G X
BushingOnly
SprocketOnly
11121314
15161718
19202122
23242526
27283032
35364042
45485460
70728084
H100SDS11H100SDS12H100SK13H100SK14
H100SF15H100SF16H100SF17H100E18
H100E19H100E20H100E21H100E22
H100E23H100E24H100E25H100E26
H100E27H100E28H100E30100E32
100E35100E36100E40100E42
100E45100E48100E54100E60
100F70100F72100F80100F84
SDSSDSSKSK
SFSFSFE
EEEE
EEEE
EEEE
EEEE
EEEE
FFFF
5.015.425.826.23
6.637.037.447.84
8.248.649.049.44
9.8410.2510.6511.05
11.4411.8412.6413.44
14.6415.0416.6317.43
18.6319.8222.2124.60
28.5829.3832.5734.16
4.4374.8305.2235.617
6.0126.4076.8037.198
7.5957.9918.3878.783
9.1809.5779.973
10.370
10.76711.16411.95812.753
13.94514.34215.93216.727
17.92019.11221.49823.884
27.86228.65731.83933.430
1111
1112
2222
2222
2222
2222
2233
3333
222 5/82 5/8
2 15/162 15/162 15/163 1/2
3 1/23 1/23 1/23 1/2
3 1/23 1/23 1/23 1/2
3 1/23 1/23 1/23 1/2
3 1/23 1/23 1/23 1/2
3 1/23 1/23 1/23 1/2
3 15/163 15/163 15/163 15/16
1 1/21 1/22 1/82 1/8
2 1/42 1/42 1/42 5/8
2 5/82 5/82 5/82 5/8
2 5/82 5/82 5/82 5/8
2 5/82 5/82 5/82 5/8
2 5/82 5/82 5/82 5/8
2 5/82 5/82 5/82 5/8
3 5/83 5/83 5/83 5/8
1 1/21 1/22 1/82 1/8
2 1/42 1/42 1/42 15/16
2 15/162 15/162 15/162 15/16
2 15/162 15/162 15/162 15/16
2 15/162 15/162 15/162 15/16
2 15/162 15/162 15/162 15/16
2 15/162 15/162 15/162 15/16
4444
3 3/163 3/163 7/83 7/8
4 5/84 5/84 5/86
6666
6666
6666
6666
6666
6 5/86 5/86 5/86 5/8
5/85/81 13/641 13/64
1 19/641 19/641 19/641 13/16
1 13/161 13/161 13/161 13/16
1 13/161 13/161 13/161 13/16
1 13/161 13/161 13/161 13/16
1 13/161 13/161 13/161 13/16
1 13/161 13/167/87/8
1111
1/8
1/81/81/81/8
1/81/81/81/8
1/81/81/81/8
1/81/81/81/8
1/81/81 1/161 1/16
1 15/161 15/161 15/161 15/16
1/161/169/169/16
9/169/169/1615/16
15/1615/1615/1615/16
15/1615/1615/1615/16
15/1615/1615/1615/16
15/1615/1615/1615/16
15/1615/1615/1615/16
1 13/161 13/161 13/161 13/16
3/43/41 1/41 1/4
1 1/41 1/41 1/41 5/8
1 5/81 5/81 5/81 5/8
1 5/81 5/81 5/81 5/8
1 5/81 5/81 5/81 5/8
1 5/81 5/81 5/81 5/8
1 5/81 5/81 5/81 5/8
2 1/22 1/22 1/22 1/2
1.01.02.02.0
3.03.03.0
10.0
10.010.010.010.0
10.010.010.010.0
10.010.010.010.0
10.010.010.010.0
10.010.010.010.0
11.511.511.511.5
2.02.63.34.1
4.85.66.59.0
10.211.612.513.5
14.615.716.818.1
19.220.723.225.4
30.532.339.143.4
48.954.062.074.0
99.0106.0123.0140.0
Sprockets with “H” prefix have hardened teeth.
Superior Materials Make Superior Products76
All dimensions in inches.
100 Sprockets1 1/4” PitchSingle - TL Style
No.of
Teeth
Catalog Number
Bushing
Diameter
Type
Maximum Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L
C Bushing Only Sprocket Only
11 12 13 14
15 16 17 18
19 20 21 22
24 26 28 30
32 35 36 40
45 48 54 60
H100BTL11 H100BTL12 H100BTL13 H100BTL14
H100BTL15 H100BTL16 H100BTL17 H100BTL18
H100BTL19 H100BTL20 H100BTL21 H100BTL22
H100BTL24 H100BTL26 H100BTL28 H100BTL30
100BTL32 100BTL35 100BTL36 100BTL40
100BTL45 100BTL48 100BTL54 100BTL60
1615 1615 2012 2012
2517 2517 2517 2517
2517 2517 2517 2517
2517 2517 3020 3020
3020 3020 3020 3020
3020 3020 3020 3020
5.01 5.42 5.82 6.23
6.63 7.03 7.44 7.84
8.24 8.64 9.04 9.44
10.25 11.05 11.84 12.64
13.44 14.64 15.04 16.63
18.63 19.82 22.21 24.60
4.437 4.830 5.223 5.617
6.012 6.407 6.803 7.198
7.594 7.991 8.387 8.783
9.577 10.370 11.164 11.958
12.753
13.945 14.342 15.932
17.919 19.112 21.498 23.884
B B B B
B B B B
B B B B
B B B B
B B B B
B B B B
1 5⁄8 1 5⁄8 2 2 2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 2 1⁄2 2 1⁄2
2 1⁄2 2 1⁄2 3 3
3 3 3 3
3 3 3 3
1 1⁄2 1 1⁄2 1 1⁄4 1 1⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 2 2
2 2 2 2
2 2 2 2
3 3 1⁄4 3 9⁄16 3 9⁄16
4 1⁄4 4 1⁄2 4 1⁄2 4 1⁄2
4 1⁄2 4 1⁄2 4 1⁄2 4 1⁄2
4 1⁄2 4 1⁄2 5 1⁄4 5 1⁄4
5 1⁄4 5 1⁄4 5 1⁄4 5 1⁄4
5 1⁄4 5 1⁄4 5 1⁄4 5 1⁄4
0.90.91.41.4
3.03.03.03.0
3.03.03.03.0
3.03.05.45.4
5.45.45.45.4
5.45.45.45.4
2.7 3.5 3.6 3.9
5.0 6.4 7.1 7.8
8.7 9.6
10.6 11.0
13.0 15.0 16.5 22.0
23.0 28.0 31.0 37.0
46.0 53.0 62.0 72.0
Sprockets with “H” prefix have hardened teeth.
TYPE B
C
L
.692Nominal
www.BlackStarPT.com 77
All dimensions in inches.
D100 Sprockets1 1/4” Pitch
Double - Split Taper Style
No.of
Teeth Catalog Number Bush-
ing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
BushingOnly
SprocketOnly
11 12 13 14 15
16 17 18 19 20
21 22 24 35 45
60 70 80
D100P11H D100Q12H D100Q13H D100Q14H D100Q15H
D100Q16H D100R17H D100R18H D100R19H D100R20H
D100R21H D100R22H D100R24H D100R35 D100S45
D100S60 D100S70 D100S80
P1 Q2 Q2 Q1 Q1
Q1 R1 R1 R1 R1
R1 R1 R1 R1 S1
S1 S1 S1
5.01 5.42 5.82 6.23 6.63
7.03 7.44 7.84 8.24 8.64
9.04 9.44
10.25 14.64 18.63
24.60
28.58 32.57
4.437 4.830 5.223 5.617 6.012
6.407 6.803 7.198 7.595 7.991
8.387 8.783 9.577
13.945 17.920
23.884 27.862 31.839
14 12 12 14 14
14 14 14 14 14
14 14 14 14 15
15 18 18
1 3/4 2 5/8 2 5/8 2 11/16 2 11/16
2 11/16 3 3/4 3 3/4 3 3/4 3 3/4
3 3/4 3 3/4 3 3/4 3 3/4 4 1/4
4 1/4 4 1/4 4 1/4
2 15/16 4 7/32 4 7/32 3 3/32 3 3/32 3 3/32 3 7/32 3 7/32 3 7/32 3 7/32
3 7/32 3 7/32 3 7/32 3 7/32 4 3/4
4 3/4 7 1/8 7 1/8
1 15/16 3 1/2 3 1/2 2 1/2 2 1/2
2 1/2 2 7/8 2 7/8 2 7/8 2 7/8
2 7/8 2 7/8 2 7/8 2 7/8 4 3/8
4 3/8 6 3/4 6 3/4
3/4 7/16 7/16 5/16 5/16
5/16 1/16 1/16 1/16 1/16
1/16 1/16 1/16 1/16 1 15/64
1 15/64 2 1/4 2 1/4
3 4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8 6 3/8
6 3/8 6 3/8 6 3/8
5/8 1 55/64 1 55/64 3/4 3/4
3/4 7/8 7/8 7/8 7/8
7/8 7/8 7/8 7/8 1 1/16
1 1/16 2 7/16 2 7/16
1.34.54.53.53.5
3.57.57.57.57.5
7.57.57.57.5
13.5
13.513.513.5
4.7 5.9 7.9 7.4 9.1
10.9 10.0 12.3 14.9 17.4
20.3 22.8 29.5 76.8
138.0
251.0 358.0 431.0
Sprockets with “H” suffix have hardened teeth.
TYPE 12
2.077
.669
OutsideDiameter
H
O.L.
P
C L
TYPE 14
.669
2.077
P
HOutsideDiameter
C L
O.L.
TYPE 15
2.077
OutsideDiameter
CP
L
H
O.L.
.669
TYPE 18
H
.669
C 2.077
P
L
OutsideDiameter
OL
Superior Materials Make Superior Products78
All dimensions in inches.
Double - Type B & C No. of
Teeth Catalog Number
Diameters
Type
Bore Hub Approx. Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
9 10 11 12
13 14 15 16
17 18 19 20
21 22 23 24
25 26 30 35
45 60 70 80
D100B9H D100B10H D100B11H D100B12H
D100B13H D100B14H D100B15H D100B16H
D100B17H D100B18H D100B19H D100B20H D100B21H D100B22H D100B23H D100B24H
D100B25H D100B26H D100B30H D100C35
D100C45 D100C60 D100C70 D100C80
4.18 4.60 5.01 5.42
5.82 6.23 6.63 7.03
7.44 7.84 8.24 8.64
9.04 9.44 9.84
10.25
10.65 11.05 12.64 14.64
18.63 24.60 28.58 32.57
3.6554.0454.437
4.830
5.223 5.617 6.012 6.407
6.803 7.198 7.594 7.991
8.387 8.783 9.180 9.577
9.97410.37011.95913.945
17.92023.88427.86131.839
B B B B
B B B B
B B B B B B B B
B B B C
C C C C
1 1 1 1 1⁄8
1 1⁄8 1 1⁄8 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 5⁄8 1 7⁄8 2 1⁄8 2 1⁄4
2 1⁄2 2 3⁄4 3 1⁄8 3 5⁄16
3 1⁄2 3 1⁄2 3 3⁄4 3 3⁄4 3 3⁄4 3 3⁄4 3 3⁄4 3 3⁄4
3 3⁄4 3 3⁄4 3 3⁄4 3 13⁄16
3 13⁄16 5 3⁄8 5 3⁄8 5 3⁄8
2 3⁄8 2 3⁄4 3 1⁄8 3 3⁄8
3 13⁄16 4 3⁄16 4 5⁄8 5
5 1⁄4 5 1⁄4 5 1⁄2 5 1⁄2 5 1⁄2 5 1⁄2 5 1⁄2 5 3⁄4
5 3⁄4 5 3⁄4 5 3⁄4 6
6 7 1⁄2 7 1⁄2 7 1⁄2
2 7⁄8 2 7⁄8 2 7⁄8 2 7⁄8
2 7⁄8 2 7⁄8 3 1⁄8 3 1⁄8
3 1⁄8 3 1⁄8 3 3⁄8 3 3⁄8 3 3⁄8 3 3⁄8 3 3⁄8 3 3⁄8
3 3⁄8 3 3⁄8 3 3⁄8 4 1⁄4
4 1⁄2 5 5 5
4.6 6.2 7.9 9.3
11.4 13.6 17.1 20.1
23.1 25.4 29.6 32.4
35.3 38.4 41.3 45.1
48.5 51.5 65.0 75.0
103.0 175.0 197.0 231.0
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” suffix have hardened teeth.
D100 Sprockets1 1/4” Pitch
HubDiameter
LengthThru Bore
.669Nominal
2.077
TYPE B
.669Nominal
HubDiameter
2.077
LengthThru Bore
TYPE C
www.BlackStarPT.com 79
All dimensions in inches.
Double - QD Style
No. of
Teeth
Catalog Number
Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L1
L2
C
Y
P
G
V
X
BushingOnly
SprocketOnly
35 45
60 70 80
D100F35 D100F45
D100J60 D100J70 D100J80
F F
J J J
14.64 18.63
24.60 28.58 32.57
13.945 17.920
23.884 27.862 31.839
C2 C2
C6 C6 C6
3 15⁄16 3 15⁄16
4 7⁄16 4 7⁄16 4 7⁄16
3 5⁄8 3 5⁄8
4 1⁄2 4 1⁄2 4 1⁄2
4 4
5 5 5
6 5⁄8 6 5⁄8
7 1⁄4 7 1⁄4 7 1⁄4
1 1 1 7⁄32 1 7⁄32 1 7⁄32
3 5⁄64 3 5⁄64
1 13⁄64 1 13⁄64 1 13⁄64
2 7⁄64 2 7⁄64
1 3⁄32 1 3⁄32 1 3⁄32
1⁄32 1⁄32 1⁄32
2 1⁄2 2 1⁄2
3 3⁄16 3 3⁄16 3 3⁄16
11.511.5
18.018.018.0
73.0 81.0
133.0 161.0 196.0
1L
2L
X
C
Y P
G
OutsideDiameter
.669Nominal
2.077
TYPE C2
D100 Sprockets1 1/4” Pitch
1L
TY W P
C
V
X
G
OutsideDiameter
TYPE C6
Superior Materials Make Superior Products80
All dimensions in inches.
T100 Sprockets1 1/4” PitchTriple - Type B & C
No. of
Teeth Catalog Number
Diameters
Type
Bore Hub Approx. Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
11 12 13 14
15 16 17 18
19 20 21 22
23 24 25 26
30 35 45 60
70 80
T100B11H T100B12H T100B13H T100B14H
T100B15H T100B16H T100B17H T100B18H
T100B19H T100B20H T100B21H T100B22H
T100B23H T100B24H T100B25H T100B26H
T100B30H T100C35 T100C45 T100C60
T100C70 T100C80
5.01 5.42 5.82 6.23
6.63 7.03 7.44 7.84
8.24 8.64 9.04 9.44
9.84 10.25 10.65 11.05
12.64 14.64 18.63 24.60
28.58 32.57
4.437 4.830 5.223 5.617
6.012
6.407 6.803 7.198
7.594 7.991 8.387 8.783
9.180 9.5779.974
10.370
11.95913.94517.92023.884
27.86131.839
B B B B
B B B B
B B B B
B B B B
B C C C
C C
1 1 1⁄8 1 1⁄8 1 1⁄8
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2
2 1⁄8 2 1⁄4 2 1⁄2 2 3⁄4
3 1⁄8 3 5⁄16 3 1⁄2 3 1⁄2
3 3⁄4 3 3⁄4 3 3⁄4 3 3⁄4
3 3⁄4 3 3⁄4 3 3⁄4 3 13⁄16
3 13⁄16 4 4 5 3⁄8
5 3⁄8 5 3⁄8
3 1⁄8 3 3⁄8 3 13⁄16 4 3⁄16
4 5⁄8 5 5 1⁄4 5 1⁄4
5 1⁄2 5 1⁄2 5 1⁄2 5 1⁄2
5 1⁄2 5 3⁄4 5 3⁄4 5 3⁄4
5 3⁄4 6 6 7 1⁄2
7 1⁄2 7 1⁄2
4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4
4 1⁄2 4 1⁄2 4 1⁄2 4 3⁄4
4 3⁄4 4 3⁄4 4 3⁄4 4 3⁄4
4 3⁄4 4 3⁄4 4 3⁄4 4 3⁄4
4 3⁄4 5 5 5
5 5
11.7 13.7 16.9 20.2
25.0 29.3 33.8 38.6
43.3 47.9 52.3 57.5
62.5 69.0 73.0 79.0
103.0 108.0 143.0 217.0
262.0 313.0
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” suffix have hardened teeth.
.669Nominal
Length Thru Bore
HubDiameter
3.489
TYPE B
.669Nominal
Length Thru Bore
HubDiameter
3.489
TYPE C
www.BlackStarPT.com 81
All dimensions in inches.
Triple - QD Style
No.of
Teeth
Catalog Number
Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L1
L2
C
Y
P
G
V
X
BushingOnly
Sprocket Only
35 45
60 70 80
T100F35 T100F45
T100J60 T100J70 T100J80
F F
J J J
14.6418.63
24.60 28.58 32.57
13.945 17.820
28.884 27.862 31.839
B1 B1
C3 C3 C3
3 15⁄16 3 15⁄16
4 7⁄164 7⁄16 4 7⁄16
3 63⁄64 3 63⁄64 4 1⁄2 4 1⁄2 4 1⁄2
4 23⁄64 4 23⁄64
5 5 5
6 5⁄8 6 5⁄8
7 1⁄4 7 1⁄4 7 1⁄4
1⁄2 1⁄2
1⁄2 1⁄2 1⁄2
23⁄64 23⁄64 33⁄64 33⁄64 33⁄64
1⁄8 1⁄8
3⁄8 3⁄8 3⁄8
1⁄2 1⁄2
1 1⁄16 1 1⁄16 1 1⁄16
2 1⁄2 2 1⁄2
3 3⁄16 3 3⁄16 3 3⁄16
11.511.5
18.018.018.0
100.0 120.0
178.0 228.0 268.0
T100 Sprockets1 1/4” Pitch
T
Y W
C
L1
P
X GL2
V
TYPE C3
L1
L2
Y 3.4850.669
Nominal
C
V
X
TYPE B1
Superior Materials Make Superior Products82
All dimensions in inches.
120 Sprockets1 1/2” PitchSingle - Type B & C Single - Type A
No. of
TeethCatalogNumber
Diameters
Type
Bore HubApprox.Weight(lbs.)
CatalogNumber
StockBore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
89
1011
12131415
16171819
20212223
24252627
28303233
34353640
42454854
60708090
H120B9H120B10H120B11
H120B12H120B13H120B14H120B15
H120B16H120B17H120B18H120B19
H120B20120B21120B22120B23
120B24120B25120B26
120B28120B30120B32
120B35120B36120C40
120C42120C45120C48120C54
120C60120C70120C80
5.025.526.01
6.506.994.474.96
8.448.929.419.89
10.3710.8511.3311.81
12.2912.7713.25
14.2115.1716.13
17.5718.0519.96
20.9222.3523.7926.65
29.5234.3039.08
4.3864.8545.325
5.7966.2696.7417.215
7.6898.1638.6399.114
9.58810.06510.54111.016
11.49211.96912.444
13.39714.35115.303
16.73417.21119.119
20.07321.50422.93525.797
28.66133.43438.207
BBB
BBBB
BBBB
BBBB
BBB
BBB
BBC
CCCC
CCC
1 3/8 1 3/8 1 3/8
1 3/8 1 3/8 1 3/8 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/2
1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2
1 13/162 1/4 2 3/8
2 3/4 3 3 1/4 3 1/4
3 1/2 3 1/2 3 1/2 3 1/2
3 1/2 3 1/2 3 1/2 3 1/2
3 1/2 3 1/2 4
4 4 4
4 4 4
4 4 4 4
5 1/4 5 3/8 5 3/8
3 3/8 3 3/4 3 9/16
4 1/8 4 9/164 3/4 4 3/4
5 1/4 5 1/4 5 1/4 5 1/4
5 1/4 5 1/4 5 1/4 5 1/4
5 1/4 5 1/4 6
6 6 6
6 6 6
6 6 6 6
7 7 1/2 7 1/2
2 1/4 2 1/4 2 1/8
2 1/8 2 1/4 2 1/4 2 3/8
2 3/8 2 3/8 2 3/8 2 3/8
2 3/8 2 3/8 2 3/8 2 3/8
2 3/8 2 3/8 2 1/2
2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 3 3/4
3 3/4 3 3/4 4 4 4 4 1/2 4 1/2
5.307.107.60
9.9012.4014.4016.70
19.9020.8022.2024.80
25.8026.7028.2030.30
32.1034.6040.00
44.9050.2056.00
62.4066.4092.00
98.0099.20
113.00133.00
160.00206.00254.00
H120A8H120A9H120A10H120A11
H120A12H120A13H120A14H120A15
H120A16H120A17H120A18H120A19
H120A20120A21120A22120A23
120A24120A25120A26120A27
120A28120A30120A32120A33
120A34120A35120A36120A40
120A42120A45120A48120A54
120A60120A70120A80120A90
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/4 1 1/4
1 1/4 1 1/4 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
2.403.003.804.80
5.806.708.009.10
10.6012.6013.6015.10
16.9018.7020.0022.10
24.8026.8028.3030.90
33.6039.0043.9048.20
50.0052.0056.0071.00
75.0088.00
103.00140.00
160.00216.00284.00358.00
Sprockets with “H” prefix have hardened teeth.
TYPE A TYPE B TYPE C
OutsideDiameter
.924Nominal
HubDiameter
LengthThru Bore
.924Nominal
HubDiameter
LengthThru Bore
.924Nominal
www.BlackStarPT.com 83
All dimensions in inches.
120 Sprockets1 1/2” Pitch
Single - Split Taper Style
No.of
Teeth Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
BushingOnly
Sprocket Only
11 12 13 14 15 16 16 17 17 18
18 19 20 21 22
23 24 25 26 28
30 32 35 36 40
40 42 45 45 48
54 60 60 70 70
80 80
120Q11H 120Q12H 120Q13H 120Q14H 120Q15H
120Q16H 120R16H 120Q17H 120R17H 120Q18H
120R18H 120R19H 120R20H 120R21 120R22
120R23 120R24 120R25 120R26 120R28
120R30 120R32 120R35 120R36 120R40
120S40 120S42 120R45 120S45 120S48
120S54 120R60 120S60 120R70 120S70
120R80 120S80
Q1 Q1 Q1 Q1 Q1
Q1 R1 Q1 R1 Q1
R1 R1 R1 R1 R1
R1 R1 R1 R1 R1
R1 R1 R2 R2 R2
S1 S1 R2 S1 S1
S1 R2 S1 R2 S2
R2 S2
6.01 6.50 6.99 7.47 7.96
8.44 8.44 8.92 8.92 9.41
9.41 9.89
10.37 10.85 11.33
11.81
12.29 12.77 13.25 14.21
15.17
16.13 17.57 18.05 19.96
19.96
20.92 22.35 22.35 23.79
26.65 29.52 29.52 34.30 34.30
39.08 39.08
5.324 5.796 6.268 6.741 7.215
7.689 7.689 8.163 8.163 8.638
8.638 9.113 9.589
10.064 10.540
11.016
11.492 11.968 12.444 13.397
14.350
15.303 16.734 17.211 19.118
19.118
20.072 21.503 21.503 22.935
25.798
28.661 28.661 33.434 33.434
38.207 38.207
4 4 4 4 4
4 4 4 4 4
4 4 4 4 4
4 4 4 5 5
5 5 6 6 6
5 5 6 5 5
5 6 5 6 5
6 6
2 11/16 2 11/16 2 11/16 2 11/16 2 11/16
2 11/16 3 3/4 2 11/16 3 3/4 2 11/16
3 3/4 3 3/4 3 3/4 3 3/4 3 3/4
3 3/4 3 3/4 3 3/4 3 3/4 3 3/4
3 3/4 3 3/4 3 5/8 3 5/8 3 5/8
4 1/4 4 1/4 3 5/8 4 1/4 4 1/4
4 1/4 3 5/8 4 1/4 3 5/8 4 3/16
3 5/8 4 3/16
2 25/32 2 25/32 2 25/32 2 25/32 2 25/32
2 25/32 3 5/32 2 25/32 3 5/32 2 25/32
3 5/32 3 5/32 3 5/32 3 5/32 3 5/32
3 5/32 3 5/32 3 5/32 3 5/32 3 5/32
3 5/32 3 5/32 5 5/32 5 5/32 5 5/32
4 3/4 4 3/4 5 5/32 4 3/4 4 3/4
4 3/4 5 5/32 4 3/4 5 5/32 7 1/8
5 5/32 7 1/8
2 1/2 2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 7/8 2 1/2 2 7/8 2 1/2
2 7/8 2 7/8 2 7/8 2 7/8 2 7/8
2 7/8 2 7/8 2 7/8 2 7/8 2 7/8
2 7/8 2 7/8 4 7/8 4 7/8 4 7/8
4 3/8 4 3/8 4 7/8 4 3/8 4 3/8
4 3/8 4 7/8 4 3/8 4 7/8 6 3/4
4 7/8 6 3/4
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 1 1/16 1 1/16
1 1/16 1 1/16 2 2 2
2 3/8 2 3/8 2 2 3/8 2 3/8
2 3/8 2 2 3/8 2 2 7/8
2 2 7/8
4 1/8 4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 5 3/8 4 1/8 5 3/8 4 1/8
5 3/8 5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8 5 3/8
6 3/8 6 3/8 5 3/8 6 3/8 6 3/8
6 3/8 5 3/8 6 3/8 5 3/8 6 3/8
5 3/8 6 3/8
1 9/16 1 9/16 1 9/16 1 9/16 1 9/16
1 15/16 1 15/16 1 15/16 1 15/16 1 15/16
1 15/16 1 15/16 1 15/16 1 15/16 1 15/16
1 15/16 1 15/16 1 15/16 7/8 7/8
7/8 7/8 1 15/16 1 15/16 1 15/16
1 1/16 1 1/16 1 15/16 1 1/16 1 1/16
1 1/16 1 15/16 1 1/16 1 15/16 2 15/16
1 15/16 2 15/16
3.53.53.53.53.5
3.57.53.57.53.5
7.57.57.57.57.5
7.57.57.57.57.5
7.57.5
11.011.011.0
13.513.511.013.513.5
13.511.013.511.019.0
11.019.0
4.8 6.3 7.9 9.2
10.4
11.8 12.0 13.4 13.7 15.6
15.0 16.9 18.8 20.7 22.5
24.3 27.1 29.1 33.3 38.0
43.3 49.4 68.0 72.0 82.0
83.0 90.0
102.0 100.0 111.0
138.0 179.0 180.0 148.0 167.0
291.0
305.0
Sprockets with “H” suffix have hardened teeth.
TYPE 4
C L
P
H
0.924NominalO.L.
OutsideDiameter
H
.L.O
C
L.924NominalP
OutsideDiameter
TYPE 5
H
L
.L.O
C
P T
OutsideDiameter
TYPE 6
Superior Materials Make Superior Products84
All dimensions in inches.
120 Sprockets1 1/2” PitchSingle - QD StyleNo.of
TeethCatalogNumber BushIng
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
OutsideDiameter
PitchDiameter L1 L2 C Y P G X
BushingOnly
SprocketOnly
121314
151617
181920
212223
242526
283032
353640
424548
54607080
H120SF12H120SF13H120SF14
H120SF15H120E16H120E17
H120E18H120E19H120E20
120E21120E22120E23
120E24120E25120E26
120E28120E30120F32
120F35120F36120F40
120F42120F45120F48
120F54120J60120J70120J80
SFSFSF
SFEE
EEE
EEE
EEE
EEF
FFF
FFF
FJJJ
6.506.997.47
7.968.448.92
9.419.89
10.37
10.8511.3311.81
12 .2912.7713.25
14.2115.1716.13
17.5718.0519.96
20.9222.3523.79
26.6529.5234.3039.08
5.7966.2686.741
7.2157.6898.163
8.6389.1139.589
10.06410.54011.016
11.49211.96812.444
13.39714.35015.303
16.73417.21119.118
20.07221.50322.935
25.79828.66133.43438.207
BBB
BB1B1
B1B1B1
B1B1B1
B1B1B1
B1B1C
CCC
CCC
CCCC
2 15/162 15/162 15/16
2 15/163 1/23 1/2
3 1/23 1/23 1/2
3 1/23 1/23 1/2
3 1/23 1/23 1/2
3 1/23 1/23 15/16
3 15/163 15/163 15/16
3 15/163 15/163 15/16
3 15/164 7/164 7/164 7/16
2 1/42 1/42 1/4
2 1/42 5/82 5/8
2 5/82 5/82 5/8
2 5/82 5/82 5/8
2 5/82 5/82 5/8
2 5/82 5/83 5/8
3 5/83 5/83 5/8
3 5/83 5/83 5/8
3 5/84 1/24 1/24 1/2
2 1/42 1/42 1/4
2 1/42 15/162 15/16
2 15/162 15/162 15/16
2 15/162 15/162 15/16
2 15/162 15/162 15/16
2 15/162 15/164
444
444
4555
4 5/84 5/84 5/8
4 5/866
666
666
666
666 5/8
6 5/86 5/86 5/8
6 5/86 5/86 5/8
6 5/87 1/47 1/47 1/4
1 5/641 5/641 5/64
1 5/641 9/161 9/16
1 9/161 9/161 9/16
1 9/161 9/161 9/16
1 9/161 9/161 9/16
1 9/161 9/161
111
111
11 3/161 3/161 3/16
1/81/8
1/81/81/8
1/81/81/8
1/81/81/8
1/81/81 11/16
1 11/161 11/161 11/16
1 11/161 11/161 11/16
1 11/162 5/162 5/162 5/16
21/6421/6421/64
21/6445/6445/64
45/6445/6445/64
45/6445/6445/64
45/6445/6445/64
45/6445/641 37/64
1 37/641 37/641 37/64
1 37/641 37/641 37/64
1 37/642 17/642 17/642 17/64
1 1/41 1/41 1/4
1 1/41 5/81 5/8
1 5/81 5/81 5/8
1 5/81 5/81 5/8
1 5/81 5/81 5/8
1 5/81 5/82 1/2
2 1/22 1/22 1/2
2 1/22 1/22 1/2
2 1/23 3/163 3/163 3/16
3.03.03.0
3.010.010.0
10.010.010.0
10.010.010.0
10.010.010.0
10.010.011.5
11.511.511.5
11.511.511.5
11.518.018.018.0
4.76.17.4
8.011.213.4
14.816.519.2
19.921.623.8
25.828.129.9
34.739.450.5
59.563.477.0
83.084.092.0
114.0140.0177.0222.0
Sprockets with “H” prefix have hardened teeth.
OutsideDiameter
L1
Y
G
C
XL2
0.924Nominal
TYPE B
OutsideDiameter
C
L2X
G
Y
L10.924Nominal
P
TYPE B1
OutsideDiameterC
L2X
G
Y
L1.924NominalP
TYPE C
www.BlackStarPT.com 85
All dimensions in inches.
120 Sprockets1 1/2” Pitch
Single - TL StyleNo.of
Teeth Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter L C
BushingOnly
Sprocket Only
12 13 14 15
16 17 18 19
20 21 24 26
30 35 45 60 70 80
H120BTL12 H120BTL13 H120BTL14 H120BTL15
H120BTL16 H120BTL17 H120BTL18 H120BTL19
H120BTL20 120BTL21 120BTL24 120BTL26
120BTL30 120CTL35 120CTL45 120CTL60 120CTL70 120CTL80
2012 2517 2517 2517
3020 3020 3020 3020
3020 3020 3020 3020
3020 3020 3030 3535 3535 3535
6.50 6.90 7.47 7.96
8.44 8.92 9.41 9.89
10.37 10.85 12.29 13.25
15.17 17.57 22.35 29.52 34.30 39.08
5.796 6.268 6.741 7.215
7.689 8.163 8.638 9.113
9.588 10.064 11.492 12.444
14.351 16.734 21.503 28.661 33.434 38.207
B B B B
B B B B
B B B B
B C C C C C
2 2 1⁄2 2 1⁄2 2 1⁄2
3 3 3 3
3 3 3 3
3 3 3 3 1⁄2 3 1⁄2 3 1⁄4
1 1⁄4 1 3⁄4 1 3⁄4 1 3⁄4
2 2 2 2
2 2 2 2
2 2 3 3 1⁄2 3 1⁄2 3 1⁄2
3 9⁄16 4 1⁄4 4 1⁄4 4 1⁄4
5 1⁄4 5 1⁄4 5 1⁄4 5 1⁄4
5 1⁄4 5 1⁄4 5 1⁄4 5 1⁄4
5 1⁄4 5 1⁄4 5 7⁄8 6 1⁄2 6 1⁄2 6 1⁄2
1.43.03.03.0
5.45.45.45.4
5.45.45.45.4
5.45.47.5
12.012.012.0
5.5 6.0 7.0 8.0
10.0 11.0 12.0 14.0
15.5 17.5 23.5 28.5
33.5 52.0 82.0
140.0 175.0 220.0
Single - Type CNo.of
Teeth Catalog Number
Diameters Bore Hub Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
LengthThru Bore
11 12 13 14
H120C11 H120C12 H120C13 H120C14
6.01 6.50 6.99 7.47
5.3255.796 6.268 6.741
1 3⁄8 1 3⁄8 1 3⁄8 1 3⁄8
2 3⁄8 2 3⁄4 3 3 1⁄4
3 9⁄16 4 13⁄16 4 5⁄8 4 3⁄4
3 3⁄8 3 3⁄8 3 3⁄8 3 3⁄8
12.5 14.817.219.5
Sprockets with “H” prefix have hardened teeth.
C
L
.924Nominal
TL - TYPE B SINGLE - TYPE C
HubDiameter
LengthThru Bore
.924Nominal
OutsideDiameter
.924Nominal
C
L
TL - TYPE C
Superior Materials Make Superior Products86
All dimensions in inches.
120 Sprockets1 1/2” PitchDouble Single - Type A
No.of
Teeth
Catalog Number
Diameters Bore
E
Approx.Weight(lbs.)
Outside Diameter
Pitch Diameter Minimum Maximum
15 16 17 18 19 20
DS120A15H DS120A16HDS120A17H DS120A18H DS120A19H DS120A20H
7.96 8.44 8.92 9.41 9.89
10.37
7.215 7.689 8.163 8.638 9.113 9.589
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
3 3⁄4 4 4 7⁄16 5 3⁄16 5 1⁄2 5 15⁄16
5 32⁄64 6 6 31⁄64 6 31⁄64 7 29⁄64 7 15⁄16
30.0 34.0 37.0 42.0 47.0 51.0
Sprockets with “H” suffix have hardened teeth.
E
2.438
.924Nominal
3.344
TYPE A
www.BlackStarPT.com 87
All dimensions in inches.
D120 Sprockets1 1/4” Pitch
Double - Type B & C
No.of
Teeth Catalog Number
Diameters
Type
Bore Hub Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
LengthThru Bore
11 12 13 14
15 16 17 18
19 20 21 22
23 24 25 26
30 35 45 60
D120B11H D120B12H D120B13H D120B14H
D120B15H D120B16H D120B17H D120B18H
D120B19H D120B20H D120B21 D120B22
D120B23 D120B24 D120B25 D120B26
D120B30 D120C35 D120C45 D120C60
6.01 6.50 6.99 7.47
7.96 8.44 8.92 9.41
9.89 10.37 10.85 11.33
11.81 12.29 12.77 13.25
15.17 17.57 22.35 29.52
5.3255.7966.2686.741
7.2157.6898.1638.638
9.1139.589
10.06410.540
11.01611.49211.96812.444
14.35116.73421.50428.661
B B B B
B B B B
B B B B
B B B B
B C C C
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
1 1⁄2 1 1⁄2 1 1⁄2 1 1⁄2
2 3⁄8 2 3⁄4 3 3 5⁄16
3 1⁄2 3 1⁄2 3 1⁄2 3 1⁄2
3 1⁄2 3 1⁄2 3 1⁄2 3 13⁄16
4 4 4 4
4 5 3⁄8 5 3⁄8 6 3⁄8
3 9⁄16 4 1⁄16 4 1⁄2 5
5 1⁄4 5 1⁄4 5 1⁄4 5 1⁄4
5 1⁄4 5 1⁄2 5 1⁄2 5 3⁄4
6 1⁄2 6 1⁄2 6 1⁄2 6 1⁄2
6 1⁄2 7 1⁄2 7 1⁄2 9 1⁄2
3 3⁄4 3 3⁄4 3 3⁄4 3 3⁄4
3 3⁄4 3 3⁄4 3 3⁄4 3 3⁄4
3 3⁄4 3 3⁄4 3 3⁄4 4
4 4 4 4
4 6 6 61⁄4
13.6 17.3 21.1 25.6
29.9 33.8 36.9 41.9
46.5 50.2 55.6 64.0
75.0 79.0 84.0 90.0
119.0 148.0 188.0 307.0
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
HubDiameter
LengthThru Bore
.894Nominal
2.683
TYPE B
.894Nominal
HubDiameter
2.683
LengthThru Bore
TYPE C
Superior Materials Make Superior Products88
All dimensions in inches.
Double - Split Taper Style No.of
Teeth Catalog Number Bushing
Diameters
Type
Maximum Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
OL L C H P
BushingOnly
SprocketOnly
30 35 45 60
D120S30 D120S35 D120S45 D120U60
S1 S1 S2 U0
15.17 17.57 22.35 29.52
14.350 16.734 21.503 28.661
15 15 18 15
4 1/4 4 1/4 4 3/16 5 1/2
4 3/4 4 3/4 7 1/8 5 23/32
4 3/8 4 3/8 6 3/4 5 1/4
5/8 5/8 1 27/32 1 9/32
6 3/8 6 3/8 6 3/8 8 3/8
1 1/16 1 1/16 2 7/32 19/32
13.513.519.030.0
105.0 148.0 268.0 183.0
2.683
OutsideDiameter
CP
L
H
O.L.
.894
TYPE 15
H
.894
C 2.683
P
L
OutsideDiameter
OL
TYPE 18
D120 Sprockets1 1/2” Pitch
www.BlackStarPT.com 89
All dimensions in inches.
D120 Sprockets1 1/2” Pitch
Double - QD StyleNo.of
Teeth Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter L1 L2 C Y P G V X
BushingOnly
SprocketOnly
3035
D120J30D120J35
JJ
15.17 17.57
14.350 16.734
11
4 7⁄16 4 7⁄16
4 1⁄2 4 1⁄2
55
7 1⁄47 1⁄4
11⁄32 11⁄32
25⁄32 25⁄32
21⁄32 21⁄32
5⁄32 5⁄32
3 3⁄16 3 3⁄16
18.018.0
78.0 93.0
4560
D120J45 D120M60
JM
22.35 29.52
21.502 28.661
22
4 7⁄16 5 1⁄2
4 1⁄2 6 3⁄4
5 6 3⁄4
7 1⁄49
11⁄32 29⁄32
25⁄321 25⁄32
21⁄32 1 21⁄32
5⁄32 27⁄32
3 3⁄16 5 3⁄16
18.032.0
138.0 234.0
TYPE 1
1L
.894Nominal
Y 2.683 P
C
V
X
G
OutsideDiameter
TYPE 2
2L
1L
T
Y W P
G
V
X
C OutsideDiameter
Superior Materials Make Superior Products90
All dimensions in inches.
140 Sprockets1 3/4” PitchSingle - Type B & C Single - Type A
No.of
TeethCatalogNumber
Diameters
Type
Bore HubApprox.Weight(lbs.)
CatalogNumber
StockBore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
11121314
15161718
19202122
23242526
27283031
32353640
454854607080
H140B11H140B12H140B13H140B14
H140B15H140B16H140B17H140B18
H140B19H140B20140B21140B22
140B23140B24140B25140B26
140B27140B28140B30
140B32140C35
140C40
140C45140C48140C54140C60140C70140C80
7.017.588.158.72
9.289.85
10.4110.98
11.5412.1012.6613.22
13.7814.3414.9015.46
16.0216.5817.7018.26
18.8220.4921.0523.29
26.0827.7531.1034.4440.0245.59
6.2136.7627.3137.865
8.4188.9719.524
10.078
10.63311.18611.74312.297
12.85213.40713.96314.518
15.07515.62916.74217.297
17.85419.52320.08020.080
25.08826.75830.09733.43739.00644.574
BBBB
BBBB
BBBB
BBBB
BBB
BC
C
CCCCCC
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2
1 1/2 1 1/2
1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
2 3/4 3 3 3/4 3 3/4
4 1/4 4 1/4 4 1/4 4 1/4
4 1/4 4 1/4 4 1/4 4 1/4
4 1/4 4 1/4 4 1/4 4 1/4
4 1/4 4 1/4 4 1/4
4 1/4 5 1/4
5 1/4
5 1/4 5 1/4 5 1/4 5 1/4 5 3/8 5 3/8
4 1/4 4 1/2 5 1/2 5 1/2
6 1/4 6 1/4 6 1/4 6 1/4
6 1/4 6 1/4 6 1/4 6 1/4
6 1/4 6 1/4 6 1/4 6 1/4
6 1/4 6 1/4 6 1/4
6 1/4 7
7
7 7 7 7 7 1/2 7 1/2
2 1/4 2 1/4 2 3/8 2 3/8
2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 2 1/2 3
3 3 3
3 4
4
4 4 4 5 5 5
11.3013.2018.9020.40
25.1027.9029.8032.00
34.1036.0038.7040.60
42.1046.2047.8057.20
58.5062.2069.80
76.30108.00
121.00
142.00150.00177.00220.00282.00331.00
H140A11H140A12H140A13H140A14
H140A15H140A16H140A17H140A18
H140A19H140A20140A21140A22
140A23140A24140A25140A26
140A27140A28140A29140A30
140A31140A32140A33140A34
140A35140A36140A37140A38140A39140A40
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
5.007.808.20
10.00
11.0014.0016.0018.00
21.0023.0025.0028.00
30.0033.0034.0039.00
41.0045.0052.0056.00
60.0072.0077.0093.00
131.00134.00173.00219.00292.00402.00
Sprockets with “H” prefix have hardened teeth.
TYPE A TYPE B TYPE C
OutsideDiameter
.924Nominal
HubDiameter
LengthThru Bore
.924Nominal
HubDiameter
LengthThru Bore
.924Nominal
www.BlackStarPT.com 91
All dimensions in inches.
140 Sprockets1 3/4” Pitch
Single - Split Taper StyleNo.of
Teeth Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
BushingOnly
SprocketOnly
11 12 13 14
15 16 17 18
19 20 21 22
23 24 25 26
30 35 36 36
40 40 45 48
54 60 70 80
H140Q11H140Q12H140R13H140R14
H140R15H140R16H140R17H140R18
H140R19H140R20140R21140R22
140R23140R24140R25140R26
140R30140R35 140R36 140S36
140R40 140S40 140S45 140S48
140S54 140S60 140S70 140S80
Q1 Q1 R1 R1
R1 R1 R1 R1
R1 R1 R1 R1
R1 R1 R1 R1
R2 R2 R2 S1
R2 S1 S1 S2
S2 S2 S2 S2
7.01 7.58 8.15 8.72
9.28 9.85
10.41 10.98
11.54 12.10 12.66 13.22
13.78 14.34 14.90 15.46
17.70 20.49 21.05 21.05
23.29 23.29 26.08 27.75
31.10 34.44 40.02 45.59
6.212 6.762 7.313 7.864
8.417 8.970 9.524
10.078
10.632 11.187 11.742 12.297
12.852 13.407 13.963 14.518
16.742 19.523 20.079 20.079
22.305 22.305 25.087 26.757
30.097 33.438 39.006 44.575
4 4 4 4
4 4 4 4
4 4 4 5
5 5 5 5
5 6 6 5
6 5 5 6
6 6 6 6
2 11/16 2 11/16 3 3/4 3 3/4
3 3/4 3 3/4 3 3/4 3 3/4
3 3/4 3 3/4 3 3/4 3 3/4
3 3/4 3 3/4 3 3/4 3 3/4
3 5/8 3 5/8 3 5/8 4 1/4
3 5/8 4 1/4 4 1/4 4 3/16
4 3/16 4 3/16 4 3/16 4 3/16
2 25/32 2 25/32 3 5/32 3 5/32
3 5/32 3 5/32 3 5/32 3 5/32
3 5/32 3 5/32 3 5/32 3 5/32
3 5/32 3 5/32 3 5/32 3 5/32
5 5/32 5 5/32 5 5/32 4 3/4
5 5/32 4 3/4 4 3/4 7 1/2
7 1/2 7 1/2 7 1/2 7 1/2
2 1/2 2 1/2 2 7/8 2 7/8
2 7/8 2 7/8 2 7/8 2 7/8
2 7/8 2 7/8 2 7/8 2 7/8
2 7/8 2 7/8 2 7/8 2 7/8
4 7/8 4 7/8 4 7/8 4 3/8
4 7/8 4 3/8 4 3/8 6 3/4
6 3/4 6 3/4 6 3/4 6 3/4
0 0 0 0
0 0 0 0
0 0 0 1 1/16
1 1/16 1 1/16 1 1/16 1 1/16
2 2 2 2 3/8
2 2 3/8 2 3/8 2 7/8
2 7/8 2 7/8 2 7/8 2 7/8
4 1/8 4 1/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 6 3/8
5 3/8 6 3/8 6 3/8 6 3/8
6 3/8 6 3/8 6 3/8 6 3/8
1 9/16 1 9/16 1 15/16 1 15/16
1 1/16 1 1/16 1 15/16 1 15/16
1 15/16 1 15/16 1 15/16 7/8
7/8 7/8 7/8 7/8
7/8 7/8 7/8 1 1/16
7/8 1 1/16 1 1/16 2 15/16
2 15/16 2 15/16 2 15/16 2 15/16
3.53.57.57.5
7.57.57.57.5
7.57.57.57.5
7.57.57.57.5
11.011.011.013.5
11.013.513.519.0
19.019.019.019.0
6.4 9.0
11.1 12.6
14.7 16.5 18.5 20.5
23.0 25.4 27.8 32.5
36.0 37.6 40.3 44.0
68.0 88.0 90.0 89.0
109.0 107.0 132.0 169.0
208.0 230.0 311.0 242.0
Sprockets with “H” prefix have hardened teeth.
TYPE 4
C L
P
H
0.924NominalO.L.
OutsideDiameter
H
.L.O
C
L.924NominalP
OutsideDiameter
TYPE 5
H
L
.L.O
C
P T
OutsideDiameter
TYPE 6
Superior Materials Make Superior Products92
All dimensions in inches.
140 Sprockets1 3/4” PitchSingle - QD Style
No.of
TeethCatalogNumber Bushing
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
OutsideDiameter
PitchDiameter L1 L2 C Y P G V X
BushingOnly
SprocketOnly
111213
141516
171819
202122
232425
263035
364045
485460
7080
H140SF11H140SF12H140SF13
H140E14H140E15H140E16
H140E17H140E18H140E19
H140E20140E21140E22
140F23140F24140F25
140F26140F30140F35
140F36140J40140J45
140J48140J54140J60
140M70140M80
SFSFSF
EEE
EEE
EEE
FFF
FFF
FJJ
JJJ
MM
7.017.588.15
8.729.289.85
10.4110.9811.54
12.1012.6613.22
13.7814.3414.90
15.4617.7020.49
21.0523.2926.08
27.7531.1034.44
40.0245.59
6.2126.7627.313
7.8648.4178.970
9.52410.07810.632
11.18711.74212.297
12.85213.40713.963
14.51816.74219.523
20.07922.30525.087
26.75730.09733.438
39.00644.575
BBB
B1B1B1
B1B1B1
B1B1B1
B1B1B1
B1B1C
CCC
CCC
C1C1
2 15/162 15/162 15/16
3 1/23 1/23 1/2
3 1/23 1/23 1/2
3 1/23 1/23 1/2
3 15/163 15/163 15/16
3 15/163 15/163 15/16
3 15/164 7/164 7/16
4 7/164 7/164 7/16
5 1/25 1/2
2 1/42 1/42 1/4
2 5/82 5/82 5/8
2 5/82 5/82 5/8
2 5/82 5/82 5/8
3 5/83 5/83 5/8
3 5/83 5/83 5/8
3 5/84 1/24 1/2
4 1/24 1/24 1/2
6 3/46 3/4
2 1/42 1/42 1/4
2 15/162 15/162 15/16
2 15/162 15/162 15/16
2 15/162 15/162 15/16
444
444
455
555
6 3/46 3/4
4 5/84 5/84 5/8
666
666
666
6 5/86 5/86 5/8
6 5/86 5/86 5/8
6 5/87 1/47 1/4
7 1/47 1/47 1/4
99
1 5/641 5/641 5/64
1 9/161 9/161 9/16
1 9/161 9/161 9/16
1 9/161 9/161 9/16
2 9/162 9/162 9/16
2 9/162 9/161
11 3/161 3/16
1 3/161 3/161 3/16
2 29/322 29/32
1/81/81/8
1/81/81/8
1/81/81/8
1/81/81/8
1/81/81 11/16
1 11/162 3/82 3/8
2 3/82 3/82 3/8
2 29/322 29/32
21/6421/6421/64
45/6445/6445/64
45/6445/6445/64
45/6445/6445/64
1 37/641 37/641 37/64
1 37/641 37/641 37/64
1 37/642 17/642 17/64
2 17/642 17/642 17/64
2 17/322 17/32
1 13/321 13/32
1 1/41 1/41 1/4
1 5/81 5/81 5/8
1 5/81 5/81 5/8
1 5/81 5/81 5/8
2 1/22 1/22 1/2
2 1/22 1/22 1/2
2 1/23 3/163 3/16
3 3/163 3/163 3/16
5 3/165 3/16
3.03.03.0
10.010.010.0
10.010.010.0
10.010.010.0
11.511.511.5
11.511.511.5
11.518.018.0
18.018.018.0
37.037.0
5.67.48.9
11.614.215.9
18.019.622.0
24.627.629.5
36.440.142.3
46.560.478.0
84.098.0
120.0
129.0149.0186.0
264.0348.0
Sprockets with “H” prefix have hardened teeth.
TYPE B TYPE B1 TYPE C
P
L1
C
V GX
OutsideDiameter
.924Nominal
TYPE C1
OutsideDiameter
L1
Y
G
C
XL2
0.924Nominal
OutsideDiameter
C
L2X
G
Y
L10.924Nominal
P
OutsideDiameterC
L2X
G
Y
L1.924NominalP
www.BlackStarPT.com 93
All dimensions in inches.
140 Sprockets1 3/4” Pitch
Double Single - Type A
No. Teeth
Catalog Number
Diameters Bore
E
Approx.Weight(lbs.)
Outside Diameter
Pitch Diameter Minimum Maximum
14 15 16 17 18
DS140A14HDS140A15HDS140A16H DS140A17H DS140A18H
8.72 9.28 9.85
10.41 10.98
7.864 8.417 8.970 9.524
10.078
1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16 1 7⁄16
3 7⁄8 4 7⁄16 5 1⁄4 5 9⁄16 6 1⁄8
5 7⁄8 6 29⁄64 7 1⁄64 7 37⁄64 8 9⁄64
35.0 43.0 49.0 58.0 66.0
Sprockets with “H” suffix have hardened teeth.
Single-TL Style
No.of
Teeth Catalog Number Bushing
Diameters
TypeMaximum
Bore
Dimensions
Type
Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter L
C
BushingOnly
SprocketOnly
12 13 14 15
16 17 18 19
21 26 35
45 60 70
H140BTL12 H140BTL13 H140BTL14 H140BTL15
H140BTL16 H140BTL17 H140BTL18 H140BTL19
140BTL21 140BTL26 140CTL35
140CTL45 140CTL60 140CTL70
2517 3020 3020 3020
3020 3020 3020 3020
3020 3020 3535
4040 4040 4040
7.58 8.15 8.72 9.28
9.85 10.41 10.98 11.54
12.66 15.46 20.49
26.08 34.44 40.02
6.762 7.313 7.864 8.417
8.970 9.524
10.078 10.632
11.742 14.518 19.523
25.087 33.438 39.006
BBBB
BBBB
BBC
CCC
2 1⁄2 3 3 3
3 3 3 3
3 3 3 1⁄2
4 4 4
1 3⁄4 2 2 2
2 2 2 2
2 2 3 1⁄2
4 4 4
4 1⁄4 5 1⁄4 5 1⁄4 5 1⁄4
5 1⁄4 5 1⁄4 5 1⁄4 5 1⁄4
5 1⁄4 5 1⁄4 6 1⁄2
7 3⁄4 7 3⁄4 7 3⁄4
B B B B
B B B B
B B C
C C C
3.05.45.45.4
5.45.45.45.4
5.45.4
12.0
17.017.017.0
7.0 8.0
10.0 12.0
14.0 16.0 18.0 20.0
24.0 40.0 78.0
118.0 188.0 241.0
Sprockets with “H” prefix have hardened teeth.
TL - TYPE B
C
L
.924Nominal
E
2.688
.924Nominal
3.609
DOUBLE SINGLETYPE A
.924Nominal
C
L
TL - TYPE C
Superior Materials Make Superior Products94
All dimensions in inches.
D140 Sprockets1 3/4” PitchDouble - Type B & C
No.of
Teeth Catalog Number
Diameters
Type
Bore Hub
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
13 14 15 16
17 18 19 20
21 22 23 24
25 26 35 45 60
D140B13H D140B14H D140B15H D140B16H
D140B17H D140B18H D140B19H D140B20H
D140B21 D140B22 D140B23 D140B24
D140B25 D140B26 D140C35 D140C45 D140C60
8.15 8.72 9.28 9.85
10.41 10.98 11.54 12.10
12.66 13.22 13.78 14.34
14.90 15.46 20.49 26.08 34.44
7.3137.8648.4178.970
9.52410.07810.63211.187
11.74212.29712.85213.407
13.96314.51819.52325.08833.437
B B B B
B B B B
B B B B
B B C C C
1 5⁄8 1 5⁄8 1 5⁄8 1 5⁄8
1 5⁄8 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
1 3⁄4 1 3⁄4 1 1⁄2 1 1⁄2 1 1⁄2
3 5⁄16 3 3⁄4 4 1⁄2 5 1⁄4
5 1⁄4 5 1⁄4 5 1⁄4 5 1⁄4
5 1⁄4 5 1⁄4 5 1⁄4 5 1⁄4
5 1⁄4 5 1⁄4 5 3⁄8 5 3⁄8 6 3⁄8
5 5 1⁄2 6 1⁄2 7
7 7 7 7
7 7 7 7
7 7 7 1⁄2 7 1⁄2 9 1⁄2
3 3⁄4 3 3⁄4 3 3⁄4 4
4 4 4 4
4 4 4 4
4 4 6 6 6 1⁄4
29.034.8 42.5 48.1
57.5 65.6 72.0 76.0
82.0 94.0
100.0 104.0
120.0 128.0 180.0 232.0 372.0
Sprockets with “H” suffix have hardened teeth.
Double - QD StyleNo.of
Teeth Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx Weight (lbs.)
Outside Diameter
Pitch Diameter L1
L2 C Y P G V X W
BushingOnly
SprocketOnly
3545 60
D140J35 D140J45D140M60
J J M
20.49 26.08 34.44
19.523 25.087 33.438
C5 C5 C6
4 7⁄16 4 7⁄16 5 1⁄2
4 1⁄2 4 1⁄2 6 3⁄4
5 56 3⁄4
7 1⁄4 7 1⁄4 9
31⁄32 31⁄32 27⁄32
23⁄32 23⁄32 1 23⁄32
19⁄32 19⁄32 1 19⁄32
7⁄32 7⁄32 25⁄32
3 3⁄16 3 3⁄16 5 3⁄16
2.818 2.818 2.818
18.018.037.0
128.0 176.0 302.0
HubDiameter
LengthThru Bore
.894Nominal
2.818
TYPE B
.894Nominal
HubDiameter
2.818
LengthThru Bore
TYPE C
TYPE C5
1L
.894Nominal
Y 2.818 P
C
V
X
G
OutsideDiameter
TYPE C6
2L
1L
.894Nominal
Y 2.818 P
G
V
X
C OutsideDiameter
www.BlackStarPT.com 95
All dimensions in inches.
160 Sprockets2” Pitch
Single - Type B Single - Type A No. of
TeethCatalogNumber
Diameters Bore HubApprox.Weight(lbs.)
CatalogNumber
StockBore
Approx.Weight(lbs.)
OutsideDiameters
PitchDiameters Minimum Maximum Diameter
Length Thru Bore
891011
12131415
16171819
20212223
24252627
2830
H160B8H160B9H160B10H160B11
H160B12H160B13H160B14H160B15
H160B16H160B17H160B18H160B19
H160B20160B21160B22160B23
160B24160B25160B26160B27
160B28160B30
6.036.707.368.01
8.669.319.96
10.61
11.2611.9012.5413.19
13.8314.4715.1115.75
16.3917.0317.6718.31
18.9520.23
5.2265.8486.4727.100
7.7288.3588.9889.620
10.25210.84411.51812.152
12.78413.42014.05414.688
15.32215.95816.59217.228
17.86219.134
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2
1 7/8 2 1/8 2 3/4 3 1/4
3 3/4 4 4 1/2 5 1/4
5 1/4 5 1/4 5 1/4 5 1/4
5 1/4 5 1/4 5 1/4 5 1/4
5 1/4 5 1/4 5 1/4 5 1/4
5 1/4 5 1/4
3 1/4 3 5/8 4 1/8 4 3/4
5 1/2 6 6 1/2 7
7 7 7 7
7 7 7 7
7 7 7 7
7 7
2 1/4 2 1/4 2 1/4 2 1/2
2 1/2 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4 2 3/4
2 3/4 2 3/4 2 3/4 2 3/4
3 3 3 3
3 3
8.0010.0012.0017.00
21.0028.0032.0037.00
41.0045.0048.0052.00
56.0059.0065.0068.00
77.0081.0086.0091.00
98.00108.00
H160A8H160A9H160A10H160A11
H160A12H160A13H160A14H160A15
H160A16H160A17H160A18H160A19
H160A20160A21160A22160A23
160A24160A25160A26160A27
160A28160A30160A35160A40
160A45160A54160A60160A70160A80
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
5.007.008.00
10.00
12.0016.0017.0021.00
24.0027.0030.0034.00
38.0042.0046.0050.00
56.0061.0065.0071.00
77.0090.00
121.00138.00
204.00294.00366.00507.00656.00
Single - Type CNo.of
Teeth Catalog Number
Diameters Bore Hub Approx.Weight(lbs.)
OutsideDiamter
PitchDiameters Minimum Maximum Diameter
LengthThru Bore
11 12354045
54607080
H160C11 H160C12 160C35160C40160C45
160C54160C60160C70160C80
8.01 8.6623.4226.6129.80
35.5439.3645.7352.10
7.1007.72822.31225.49228.672
34.39638.21444.57850.942
1 1/21 1/21 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
3 1/43 3/45 1/2 5 1/2 5 1/2
5 1/2 5 1/2 5 1/2 5 1/2
4 1/2 5 1/28 8 8
8 8 8 8
4 1/84 1/84 1/2 4 1/2 5
5 5 5 6
21.00 26.00
154.00196.00
234.00276.00329.00446.00612.00
Sprockets with “H” prefix have hardened teeth.
TYPE A
TYPE B TYPE C
OutsideDiameter
1.156Nominal
HubDiameter
LengthThru Bore
1.156Nominal
HubDiameter
LengthThru Bore
1.156Nominal
Superior Materials Make Superior Products96
All dimensions in inches.
160 Sprockets2” PitchSingle - Split Taper Style
No.of Teeth
Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
BushingOnly
SprocketOnly
11 12 13 14
15 16 17 18
19 20 21 22
23 24 25 26
26 28 28 30
30 35 40 45
60 70 80 80
H160R11H160R12H160R13H160R14
H160R15H160R16H160R17H160R18
H160R19H160R20160R21160R22
160R23160R24160R25160R26
160S26160R28 160S28160R30
160S30160S35 160S40 160S45
160U60 160U70 160S80 160U80
R1 R1 R1 R1
R1 R1 R1 R1
R1 R2 R2 R2
R2 R2 R2 R2
S2 R2 S2 R2
S2 S2 S2 S2
U0 U0 S2 U1
8.01 8.66 9.31 9.96
10.61 11.26 11.90 12.54
13.19 13.83 14.47 15.11
15.75 16.39 17.03 17.67
17.67 18.95 19.95 20.23
20.23 23.42 26.61 29.80
39.36 45.73 52.10 52.10
7.099 7.727 8.357 8.988
9.620 10.252 10.885 11.518
12.151 12.785 13.419 14.053
14.688 15.323 15.958 16.593
16.593 17.863 17.863 19.134
19.134 22.312 25.491 28.671
38.215 44.578 50.943 50.943
4 4 4 4
4 4 4 4
4 6 6 6
6 6 6 6
6 6 6 6
6 6 6 6
6 6 6 6
3 3/4 3 3/4 3 3/4 3 3/4
3 3/4 3 3/4 3 3/4 3 3/4
3 3/4 3 5/8 3 5/8 3 5/8
3 5/8 3 5/8 3 5/8 3 5/8
4 3/16 3 5/8 4 3/16 3 5/8
4 3/16 4 3/16 4 3/16 4 3/16
5 1/2 5 1/2 4 3/16 5 1/2
3 13/32 3 13/32 3 5/32 3 5/32
3 5/32 3 5/32 3 5/32 3 5/32
3 5/32 5 5/32 5 5/32 5 5/32
5 5/32 5 5/32 5 5/32 5 5/32
7 1/8 5 5/32 7 1/8 5 5/32
7 1/8 7 1/8 7 1/8 7 1/8
5 25/32 5 25/32 7 1/8 7 19/32
2 7/8 2 7/8 2 7/8 2 7/8
2 7/8 2 7/8 2 7/8 2 7/8
2 7/8 4 7/8 4 7/8 4 7/8
4 7/8 4 7/8 4 7/8 4 7/8
6 3/4 4 7/8 6 3/4 4 7/8
6 3/4 6 3/4 6 3/4 6 3/4
5 1/4 5 1/4 6 3/4 7 1/8
1/4 1/4 0 0
0 0 0 0
0 2 2 2
2 2 2 2
2 7/8 2 2 7/8 2
2 7/8 2 7/8 2 7/8 2 7/8
1 15/16 1 15/16 2 7/8 2 7/8
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8
6 3/8 5 3/8 6 3/8 5 3/8
6 3/8 6 3/8 6 3/8 6 3/8
8 3/8 8 3/8 6 3/8 8 3/8
1 31/32 1 31/32 1 23/32 1 23/32
1 23/32 1 23/32 1 23/32 1 23/32
1 23/32 1 23/32 1 23/32 1 23/32
1 23/32 1 23/32 1 23/32 1 23/32
2 23/32 1 23/32 2 23/32 1 23/32
2 23/32 2 23/32 2 23/32 2 23/32
1 21/32 1 21/32 2 23/32 2 19/32
7.57.57.57.5
7.57.57.57.5
7.511.011.011.0
11.011.011.011.0
19.011.019.011.0
19.019.019.019.0
30.030.019.040.0
10.8 14.2 15.5 18.5
21.6 25.0 28.0 31.9
35.9 51.0 56.0 60.0
65.0 71.5 74.0 79.0
79.0 99.8 99.8
106.0
115.0 150.0 165.0 204.0
308.0 354.0 414.0 394.0
Sprockets with “H” prefix have hardened teeth.
TYPE 4
C L
P
H
1.156Nominal
O.L.
OutsideDiameter H
L
.L.O
C
P1.156Nominal
OutsideDiameter
TYPE 6
www.BlackStarPT.com 97
All dimensions in inches.
160 Sprockets2” Pitch
Single - QD Style
No.of
TeethCatalogNumber Bushing
Diameters
TypeMaximum
Bore
DimensionsApprox.
Weight (lbs.)
OutsideDiameter
PitchDiameter L1 L2 C Y P G V X
BushingOnly
SprocketOnly
121314
151617
181920
212223
242526
283035
404554
607080
H160E12H160E13H160E14
H160F15H160F16H160F17
H160F18H160F19H160F20
160F21160F22160F23
160F24160F25160J26
160J28160J30160J35
160M40160M45160M54
160M60160M70160M80
EEE
FFF
FFF
FFF
FFJ
JJJ
MMM
MMM
8.669.319.96
10.6111.2611.90
12.5413.1913.83
14.7415.1115.75
16.3917.0317.67
18.9520.2323.42
26.6129.8035.54
39.3645.7352.10
7.7278.3578.988
9.62010.25210.885
11.51812.15112.785
13.41914.05314.688
15.32315.95816.593
17.86319.13422.312
25.49128.67134.397
38.21544.57850.943
B1B1B1
B1B1B1
B1B1B1
B1B1B1
B1B1C
CCC
C1C1C1
C1C1C1
3 1/23 1/23 1/2
3 15/163 15/163 15/16
3 15/163 15/163 15/16
3 15/163 15/163 15/16
3 15/163 15/164 7/16
4 7/164 7/164 7/16
5 1/25 1/25 1/2
5 1/25 1/25 1/2
2 5/82 5/82 5/8
3 5/83 5/83 5/8
3 5/83 5/83 5/8
3 5/83 5/83 5/8
3 5/83 5/84 1/2
4 1/24 1/24 1/2
6 3/46 3/46 3/4
6 3/46 3/46 3/4
2 15/162 15/162 15/16
444
444
444
445
555
6 3/46 3/46 3/4
6 3/46 3/46 3/4
666
6 5/86 5/86 5/8
6 5/86 5/86 5/8
6 5/86 5/86 5/8
6 5/86 5/87 1/4
7 1/47 1/47 1/4
999
999
1 5/161 5/161 5/16
2 5/162 5/162 5/16
2 5/162 5/162 5/16
2 5/162 5/162 5/16
2 5/162 5/161 3/16
1 3/161 3/161 3/16
2 11/162 11/162 11/16
2 11/162 11/162 11/16
1/81/81/8
1/81/81/8
1/81/81/8
1/81/81/8
1/81/82 1/8
2 1/82 1/82 1/8
2 11/162 11/162 11/16
2 11/162 11/162 11/16
15/3215/3215/32
1 11/321 11/321 11/32
1 11/321 11/321 11/32
1 11/321 11/321 11/32
1 11/321 11/322 1/32
2 1/322 1/322 1/32
2 13/322 13/322 13/32
2 13/322 13/322 13/32
1 19/321 19/321 19/32
1 19/321 19/321 19/32
1 5/81 5/81 5/8
2 1/22 1/22 1/2
2 1/22 1/22 1/2
2 1/22 1/22 1/2
2 1/22 1/23 3/16
3 3/163 3/163 3/16
5 3/165 3/165 3/16
5 3/165 3/165 3/16
10.010.010.0
11.511.511.5
11.511.511.5
11.511.511.5
11.511.518.0
18.018.018.0
37.037.037.0
37.037.037.0
11.014.016.0
24.027.031.0
35.038.042.0
45.051.055.0
59.064.074.0
84.096.0
116.0
174.0208.0262.0
310.0431.0530.0
Sprockets with “H” prefix have hardened teeth.
P
L1
C
V GX
OutsideDiameter
1.156Nominal
TYPE C1TYPE B1 TYPE C
OutsideDiameter
C
L2X
G
Y
L11.156Nominal
P
OutsideDiameterC
L2X
G
Y
L11.156NominalP
Superior Materials Make Superior Products98
All dimensions in inches.
.924Nominal
C
L
160 Sprockets2” PitchSingle - TL Style
No.of
Teeth Catalog Number Bushing
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter
L
C
BushingOnly
SprocketOnly
11 12 13 14
15 16 17
18 19 21
26 35 45 60
H160BTL11 H160BTL12 H160BTL13 H160BTL14
H160BTL15 H160BTL16 H160BTL17
H160BTL18 H160BTL19 160BTL21
160BTL26 160CTL35 160CTL45 160CTL60
2517 3020 3020 3020
3535 3535 3535
3535 3535 3535
3535 4040 4040 4545
8.01 8.66 9.31 9.96
10.61 11.26 11.90
12.54 13.19 14.47
17.67 23.42 29.80 39.36
7.099 7.727 8.357 8.988
9.620 10.252 10.885
11.518 12.151 13.419
16.593 22.312 28.671 38.215
B B B B
B B B
B B B
B C C C
2 1⁄2 3 3 3
3 1⁄2 3 1⁄2 3 1⁄2
3 1⁄2 3 1⁄2 3 1⁄2
3 1⁄2 4 4 4 1⁄2
1 3⁄4 2 2 2
3 1⁄2 3 1⁄2 3 1⁄2
3 1⁄2 3 1⁄2 3 1⁄2
3 1⁄2 4 4 4 1⁄2
4 1⁄4 5 1⁄4 5 1⁄4 5 1⁄4
6 1⁄2 6 1⁄2 6 1⁄2
6 1⁄2 6 1⁄2 6 1⁄2
6 1⁄2 7 3⁄4 7 3⁄4 8 3⁄4
3.05.45.45.4
12.512.512.5
12.512.512.5
12.517.017.024.0
9.0 11.0 13.0 16.0
25.0 28.0 32.0
35.0 39.0 48.0
68.0 118.0 186.0 292.0
Sprockets with “H” prefix have hardened teeth.
Double Single-Type A
No.of
Teeth
Catalog Number
Diameters Bore
E
Approx.Weight(lbs.)
Outside Diameter
Pitch Diameter Minimum Maximum
15 16 17 18
DS160A15H DS160A16H DS160A17H DS160A18H
10.61 11.26 11.90 12.54
9.620 10.252 10.885 11.518
1 11⁄16 1 11⁄16 1 11⁄16 1 11⁄16
5 1⁄2 6 6 1⁄2 6 13⁄16
7 3⁄8 8 1⁄64 8 21⁄32 9 5⁄16
69.0 75.0 92.0 97.0
Sprockets with “H” suffix have hardened teeth.
E
3.094
1.156Nominal
4.250
TYPE ATYPE B
C
L
.924Nominal
TYPE C
www.BlackStarPT.com 99
All dimensions in inches.
D160 Sprockets2” Pitch
Double - Type B & C
No.of
Teeth Catalog Number
Diameters
Type
Bore Hub Approx.Weight (lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
13 14 15 16
17 18 19 20
21 22 23 24
25 26 35 45 60
D160B13H D160B14H D160B15H D160B16H
D160B17H D160B18H D160B19H D160B20H
D160B21 D160B22 D160B23 D160B24
D160B25 D160B26 D160C35 D160C45 D160C60
9.31 9.96
10.61 11.26
11.90 12.54 13.19 13.83
14.47 15.11 15.75 16.39
17.03 17.67 23.42 29.80 39.36
8.357 8.988 9.620
10.252
10.885 11.518 12.15112.784
13.42014.05414.68815.322
15.95816.59222.31228.67238.214
B B B B
B B B B
B B B B
B B C C C
2 2 2 2
2 2 2 2
2 2 2 2
2 2 1 1⁄2 1 1⁄2 1 1⁄2
4 4 3⁄4 5 1⁄4 5 1⁄4
5 1⁄4 5 1⁄4 5 1⁄4 5 1⁄4
5 3⁄8 5 3⁄8 5 3⁄8 5 3⁄8
5 3⁄8 5 3⁄8 6 3⁄4 7 7
6 6 3⁄4 7 7
7 7 7 7
7 1⁄2 7 1⁄2 7 1⁄2 7 1⁄2
7 1⁄2 7 1⁄2 9 1⁄2 10 10
4 3⁄4 4 3⁄4 4 3⁄4 4 3⁄4
4 3⁄4 4 3⁄4 4 3⁄4 4 3⁄4
4 3⁄4 4 3⁄4 4 3⁄4 4 3⁄4
4 3⁄4 4 3⁄4 6 5⁄8 7 1⁄8 7 1⁄8
48.058.0 68.075.0
91.0 96.0
107.0 119.0
130.0 141.0 157.0 171.0
187.0201.0 306.0 431.0 564.0
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” suffix have hardened teeth.
Double - QD Style
No.of
Teeth Catalog Number Bushing
Diameters
Type Maximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter L1
L2 C Y P G V X
BushingOnly
SprocketOnly
354560
D160M35 D160N45 D160N60
MN N
23.42 29.80 39.36
22.312 28.671 38.215
C6 C6 C6
5 1⁄26 6
6 3⁄4 8 1⁄8 8 1⁄8
6 3⁄4 8 1⁄8 8 1⁄8
9 10 10
2 3⁄64 2 11⁄322 11⁄32
1 9⁄322 23⁄64 2 23⁄64
1 5⁄322 5⁄322 5⁄32
39⁄64 21⁄32 21⁄32
5 3⁄166 1⁄46 1⁄4
37.057.057.0
222.0340.0472.0
HubDiameter
LengthThru Bore
1.119Nominal
3.424
TYPE B
1.119Nominal
HubDiameter
3.424
LengthThru Bore
TYPE C
1L
1.119Nominal
Y 3.424 P
C
V
X
G
OutsideDiameter
DOUBLE QD TYPE C6
Superior Materials Make Superior Products100
All dimensions in inches.
180 Sprockets2 1/4” PitchSingle-Type B & C Single-Type A
No. ofTeeth
CatalogNumber
Diameters
Type
Bore HubApprox.Weight(lbs.)
CatalogNumber
StockBore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
11121314
15161718
19202122
23242528
303540455460
H180B11H180B12H180B13H180B14
H180B15H180B16H180B17H180B18
H180B19H180B20180B21180B22
180B23180B24180B25180B28
180C30180C35180C40180C45180C54180C60
9.019.75
10.4811.21
11.9312.6613.3914.11
14.8315.5616.2817.00
17.7218.4419.1621.32
22.7626.3529.9433.5339.9844.28
7.9868.6939.402
10.112
10.82211.53312.24512.957
13.67014.38315.09615.810
16.52417.23817.95220.096
21.52525.10128.67732.25538.69642.991
BBBB
BBBB
BBBB
BBBB
CCCCCC
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
3 5/8 4 4 5/8 5 1/4
5 1/4 5 1/4 5 1/4 5 1/4
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 1/2
5 3/4 5 3/4 5 3/4 6 6 6 1/2
5 1/2 6 6 3/4 7
7 7 7 7
7 1/2 7 1/2 7 1/2 7 1/2
7 1/2 7 1/2 7 1/2 8
8 1/2 8 1/2 8 1/2 9 9 9 1/2
3 3 3 1/8 3 1/8
3 1/8 3 1/8 3 1/8 3 1/8
3 3/8 3 3/8 3 3/8 3 3/8
3 3/8 3 3/8 3 3/8 3 1/2
4 3/8 4 3/8 4 3/8 5 5 5 3/8
29.032.040.044.0
48.052.058.063.0
74.081.083.092.0
99.0105.0113.0135.0
180.0222.0270.0315.0477.0489.0
H180A11H180A12H180A13H180A14
H180A15H180A16H180A17H180A18
H180A19H180A20H180A21180A22
180A23180A24180A25180A28
180A30180A35180A40180A45180A54180A60
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
14.016.020.024.0
28.032.037.043.0
47.053.057.062.0
69.077.084.0
104.0120.0
172.0229.0284.0420.0505.0
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” prefix have hardened teeth.
TYPE A TYPE B TYPE C
OutsideDiameter
1.301Nominal
Length Thru Bore
1.301Nominal
Hub Diameter
HubDiameter
LengthThru Bore
1.301Nominal
www.BlackStarPT.com 101
All dimensions in inches.
200 Sprockets2 1/2” Pitch
Single - Type B & C Single - Type ANo.of
TeethCatalogNumber
Diameters Bore HubApprox.Weight(lbs.)
CatalogNumber
StockBore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
10111213
14151617
18192021
22232425
26283032
3540455460
H200B10H200B11H200B12H200B13
H200B14H200B15H200B16H200B17
H200B18H200B19H200B20200B21
200B22200B23200B24200B25
200C26200C28200C30200C32
200C35200C40200C45200C54200C60
9.2010.0210.8311.64
12.4613.2614.0714.87
15.6816.4817.2918.09
18.8919.6920.4921.29
22.0923.6925.2926.88
29.2833.2737.2544.4249.20
8.0908.8759.660
10.447
11.23512.02512.81513.605
14.39715.19015.98016.775
17.56718.36019.15319.947
20.74022.32723.91725.505
27.89031.86535.84042.99547.768
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
3 3/4 4 4 1/2 5 1/4
5 3/8 5 3/8 5 3/8 5 3/8
5 3/8 5 3/8 5 3/8 5 3/8
5 3/4 5 3/4 5 3/4 5 3/4
5 3/4 5 3/4 5 3/4 5 3/4
5 3/4 6 6 6 1/2 6 1/2
5 1/2 6 6 1/2 7
7 1/2 7 1/2 7 1/2 7 1/2
7 1/2 7 1/2 7 1/2 7 1/2
8 1/2 8 1/2 8 1/2 8 1/2
8 1/2 8 1/2 8 1/2 8 1/2
8 1/2 9 9 9 1/2 9 1/2
3 3 3 3
3 1/2 3 1/2 3 1/2 3 1/2
3 1/2 3 1/2 3 1/2 3 1/2
4 4 4 4
4 1/2 4 1/2 4 1/2 4 1/2
4 1/2 5 5 5 1/2 5 1/2
26.033.037.046.0
59.064.072.076.0
84.091.098.0
106.0
131.0136.0142.0153.0
178.0195.0212.0220.0
254.0320.0364.0512.0654.0
H200A10H200A11H200A12H200A13
H200A14H200A15H200A16H200A17
H200A18H200A19H200A20200A21
200A22200A23200A24200A25
200A26200A28200A30200A32
200A35200A40200A45200A54200A60
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2 1 1/2
16.020.024.030.0
32.040.046.051.0
57.065.072.082.0
88.095.0
105.0113.0
124.0144.0167.0195.0
227.0301.0390.0555.0692.0
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” prefix have hardened teeth.
TYPE A TYPE B TYPE C
OutsideDiameter
1.389Nominal
Hub Diameter
Length Thru Bore
1.389 Nominal
OutsideDiameter
Hub Diameter
Length Thru Bore
1.389 Nominal
OutsideDiameter
Superior Materials Make Superior Products102
All dimensions in inches.
Single - QD StyleNo.of
TeethCatalogNumber Bushing
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
OutsideDiameter
Pitch Diameter L1 L2 C Y P G V X
BushingOnly
SprocketOnly
1213141516
1718192021
2223242526
28303235
40455460
H200F12H200J13H200J14H200J15H200J16
H200M17H200M18H200M19H200M20200M21
200M22200M23200M24200M25200M26
200M28200M30200M32200M35
200M40200N45200N54200N60
FJJJJ
MMMMM
MMMMM
MMMM
MNNN
10.8311.6412.4613.2614.07
14.8715.6816.4817.2918.09
18.8919.6920.4921.2922.09
23.6925.2926.8829.28
33.2737.2544.4249.20
9.66010.44711.23512.02512.815
13.60514.39715.91015.98216.775
17.56718.36019.15219.94720.740
22.33023.91725.50527.890
31.86535.84042.99547.767
CCCCC
C1C1C1C1C1
C1C1C1C1C1
C1C1C1C1
C1C1C1C1
3 15/164 7/164 7/164 7/164 7/16
5 1/25 1/25 1/25 1/25 1/2
5 1/25 1/25 1/25 1/25 1/2
5 1/25 1/25 1/25 1/2
5 1/25 7/85 7/85 7/8
3 5/84 1/24 1/24 1/24 1/2
6 3/46 3/46 3/46 3/46 3/4
6 3/46 3/46 3/46 3/46 3/4
6 3/46 3/46 3/46 3/4
6 3/48 1/88 1/88 1/8
45555
6 3/46 3/46 3/46 3/46 3/4
6 3/46 3/46 3/46 3/46 3/4
6 3/46 3/46 3/46 3/4
6 3/48 1/88 1/88 1/8
6 5/87 1/47 1/47 1/47 1/4
99999
99999
9999
9101010
11 13/161 13/161 13/161 13/16
2 23/322 23/322 23/322 23/322 23/32
2 23/322 23/322 23/322 23/322 23/32
2 23/322 23/322 23/322 23/32
2 23/323 13/323 13/323 13/32
1 5/162222
2 23/322 23/322 23/322 23/322 23/32
2 23/322 23/322 23/322 23/322 23/32
2 23/322 23/322 23/322 23/32
2 23/323 13/323 13/323 13/32
1 1/81 13/161 13/161 13/161 13/16
2 5/162 5/162 5/162 5/162 5/16
2 5/162 5/162 5/162 5/162 5/16
2 5/162 5/162 5/162 5/16
2 5/163 3/163 3/163 3/16
1 1/21 1/21 1/21 1/21 1/2
1 1/21 1/21 1/21 1/21 1/2
1 1/21 1/21 1/21 1/2
1 1/21 11/161 11/161 11/16
2 1/23 3/163 3/163 3/163 3/16
5 3/165 3/165 3/165 3/165 3/16
5 3/165 3/165 3/165 3/165 3/16
5 3/165 3/165 3/165 3/16
5 3/166 1/46 1/46 1/4
11.518.018.018.018.0
37.037.037.037.037.0
37.037.037.037.037.0
37.037.037.037.0
37.057.057.057.0
24.032.039.044.050.0
76.082.088.097.0
103.0
112.0120.0131.0138.0148.0
168.0190.0214.0228.0
278.0348.0478.0608.0
TYPE C
200 Sprockets2 1/2” Pitch
OutsideDiameterC
L2X
G
Y
L11.389NominalP
P
L1
C
V GX
OutsideDiameter
1.389Nominal
TYPE C1
www.BlackStarPT.com 103
All dimensions in inches.
200 Sprockets2 1/2” Pitch
Single - Split Taper StyleNo.of
Teeth Catalog Number Bushing
Diameters
TypeMaximum
Bore
Dimensions Approx. Weight (lbs.)
Outside Diameter
Pitch Diameter OL L C H P
BushingOnly
SprocketOnly
12 13 14 15
16 17 18 19
20 21 22 23
24 25 26 28
30 32 35 40
45 54 60
H200R12 H200S13 H200S14 H200S15
H200S16 H200S17 H200U18 H200U19
H200U20 200U21 200U22 200U23
200U24 200U25 200U26 200U28
200U30 200U32 200U35 200U40
200U45 200U54 200U60
R2 S2 S2 S2
S2 S2 U0 U0
U0 U0 U0 U0
U0 U0 U0 U0
U0 U0 U1 U1
U1 U2 U2
10.83 11.64 12.46 13.26
14.07 14.87 15.68 16.48
17.29 18.09 18.89 19.69
20.49 21.29 22.09 23.69
25.29 26.88 29.28 33.27
37.25 44.42 49.20
9.660 10.447 11.235 12.025
12.815 13.605 14.397 15.190
15.982 16.775 17.567 18.360
19.152 19.947 20.740 22.330
23.917 25.505 27.890 31.865
35.840 42.995 47.767
6 6 6 6
6 6 6 6
6 6 6 6
6 6 6 6
6 6 6 6
6 6 6
3 5/8 4 3/16 4 3/16 4 3/16
4 3/16 4 3/16 5 1/2 5 1/2
5 1/2 5 1/2 5 1/2 5 1/2
5 1/2 5 1/2 5 1/2 5 1/2
5 1/2 5 1/2 5 1/2 5 1/2
5 1/2 5 5
5 5/32 7 1/8 7 1/8 7 1/8
7 1/8 7 1/8 5 23/32 5 23/32
5 23/32 5 23/32 5 23/32 5 23/32
5 23/32 5 23/32 5 23/32 5 23/32
5 23/32 5 23/32 7 19/32 7 19/32
7 19/32 10 19/32 10 19/32
4 7/8 6 3/4 6 3/4 6 3/4
6 3/4 6 3/4 5 1/4 5 1/4
5 1/4 5 1/4 5 1/4 5 1/4
5 1/4 5 1/4 5 1/4 5 1/4
5 1/4 5 1/4 7 1/8 7 1/8
7 1/8 10 1/8 10 1/8
2 2 7/8 2 7/8 2 7/8
2 7/8 2 7/8 1 5/8 1 5/8
1 5/8 1 5/8 1 5/8 1 5/8
1 5/8 1 5/8 1 5/8 1 5/8
1 5/8 1 5/8 2 7/8 2 7/8
2 7/8 4 1/4 4 1/4
5 3/8 6 3/8 6 3/8 6 3/8
6 3/8 6 3/8 8 3/8 8 3/8
8 3/8 8 3/8 8 3/8 8 3/8
8 3/8 8 3/8 8 3/8 8 3/8
8 3/8 8 3/8 8 3/8 8 3/8
8 3/8 8 3/8 8 3/8
1 1/2 2 1/2 2 1/2 2 1/2
2 1/2 2 1/2 2 17/32 2 17/32
2 17/32 2 17/32 2 17/32 2 17/32
2 17/32 2 17/32 2 17/32 2 17/32
2 17/32 2 17/32 2 7/8 2 7/8
2 7/8 3 29/32 3 29/32
11.019.019.019.0
19.019.030.030.0
30.030.030.030.0
30.030.030.030.0
30.030.040.040.0
40.050.050.0
35.3 52.2 57.5 61.0
71.0 79.0 76.5 83.7
91.3 99.4
110.0 117.0
126.0 140.0 150.0 169.0
188.0 212.0 252.0 306.0
290.0 385.0 445.0
Sprockets with “H” prefix have hardened teeth.
H
L
.L.O
C
P1.389Nominal
OutsideDiameter
TYPE 6
Superior Materials Make Superior Products104
All dimensions in inches.
D200 Sprockets2 1/2” PitchDouble - Type B & C
No.of
Teeth Catalog Number
Diameters
Type
Bore Hub
Approx.Weight (lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
11 12 13 14
15 16 17 18
19 20 21 22
23 24 25 26
45 60
D200B11H D200B12H D200B13H D200B14H
D200B15H D200B16H D200B17H D200B18H
D200B19H D200B20H D200B21 D200B22
D200B23 D200B24 D200B25 D200B26
D200C45 D200C60
10.02 10.83 11.64 12.46
13.26 14.07 14.87 15.68
16.48 17.29 18.09 18.89
19.69 20.49 21.29 22.09
37.25 49.20
8.8759.660
10.44711.235
12.02512.81513.60514.397
15.91015.98216.77517.567
18.36019.15219.94720.740
35.84047.768
B B B B
B B B B
B B B B
B B B B
C C
2 2 2 2
2 2 2 2
2 2 2 2
2 2 2 2
1 1⁄2 1 1⁄2
3 3⁄4 4 1⁄2 5 1⁄4 5 1⁄2
5 3⁄4 5 3⁄4 5 3⁄4 5 3⁄4
5 3⁄4 5 3⁄4 5 3⁄4 5 3⁄4
5 3⁄4 5 3⁄4 5 3⁄4 5 3⁄4
7 7
5 1⁄2 6 1⁄2 7 8
8 1⁄2 8 1⁄2 8 1⁄2 8 1⁄2
8 1⁄2 8 1⁄2 8 1⁄2 8 1⁄2
8 1⁄2 8 1⁄2 8 1⁄2 8 1⁄2
10 10
5 7⁄8 6 1⁄4 6 3⁄8 6 3⁄8
6 3⁄8 6 5⁄8 6 5⁄8 6 5⁄8
6 5⁄8 6 5⁄8 6 5⁄8 6 5⁄8
6 5⁄8 6 5⁄8 6 5⁄8 6 5⁄8
8 1⁄2 9
57.0 80.096.0
119.0
138.0 161.0 178.0 196.0
217.0 236.0 250.0 284.0
308.0 330.0 358.0 386.0
665.0 972.0
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Sprockets with “H” suffix have hardened teeth.
HubDiameter
LengthThru Bore
1.344Nominal
4.161
TYPE B
1.344Nominal
HubDiameter
4.161
LengthThru Bore
TYPE C
www.BlackStarPT.com 105
All dimensions in inches.
240 Sprockets3” Pitch
Single - Type B & C Single - Type A
No. ofTeeth
CatalogNumber
Diameters
Type
Bore HubApprox.Weight(lbs.)
CatalogNumber
StockBore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
10111213
14151617
18192021
25303540
455460
240B10240B11240B12240B13
240B14240B15240B16240B17
240B18240B19240B20240B21
240B25240C30240C35240C40
240C45240C54240C60
11.0312.0213.0013.97
14.9415.9116.8817.85
18.8119.7820.7421.71
25.5530.3435.1339.92
44.7053.3159.04
9.70810.64911.59112.536
13.48214.42915.37716.327
17.27618.22719.17720.129
23.93628.70033.46738.237
43.00751.59557.322
BBBB
BBBB
BBBB
BCCC
CCC
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2
4 1/2 4 3/4 5 3/8 5 3/8
5 3/8 5 3/8 5 1/2 5 1/2
5 1/2 5 1/2 5 1/2 5 1/2
5 1/2 6 6 7
7 7 7
6 1/2 7 7 1/2 7 1/2
7 1/2 7 1/2 8 8
8 8 8 8
8 9 9 10
10 10 10
3 3/8 3 7/8 3 7/8 3 7/8
3 7/8 3 7/8 4 1/8 4 1/8
4 1/8 4 1/8 4 1/8 4 1/8
4 1/8 6 1/4 6 1/4 6 3/4
6 3/4 6 3/4 6 3/4
49.066.072.081.0
88.098.0
120.0137.0
142.0154.0169.0186.0
254.0398.0527.0672.0
850.01148.01419.0
240A10240A11240A12240A13
240A14240A15240A16240A17
240A18240A19240A20240A21
240A25240A30240A35240A40
240A45240A54240A60
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2 1 1/2
1 1/2 1 1/2 1 1/2
30.037.045.054.0
62.068.082.093.0
108.0120.0128.0148.0
208.0310.0416.0548.0
702.01022.01268.0
TYPE A TYPE B TYPE C
OutsideDiameter
1.738Nominal
Hub Diameter
Length Thru Bore
1.738 Nominal
OutsideDiameter
Hub Diameter
Length Thru Bore
1.738 Nominal
OutsideDiameter
Superior Materials Make Superior Products106
All dimensions in inches.
78 - Type C 78 - Type B 78 - Type ANo.of
TeethCatalogNumber
PitchDiameter
BoreHub
DiameterLength
Thru BoreCatalogNumber
BoreHub
DiameterLength
Thru BoreCatalogNumber
StockBoreMinimum Maximum Minimum Maximum
89
10
111213
141517
78C878C978C10
78C1178C1278C13
78C1478C1578C17
6.827.638.44
9.2610.0810.90
11.7212.5514.20
1 7/161 7/161 7/16
1 7/161 7/161 7/16
1 7/161 7/161 7/16
2 15/163 15/163 15/16
3 15/163 15/163 15/16
3 15/163 15/163 15/16
4 3/8 4 3/8 4 3/8
4 3/8 4 3/8 4 3/8
4 3/8 4 3/8 4 3/8
3 3 3
3 3 3
3 3 3
78B878B978B10
78B1178B1278B13
78B1478B1578B17
3/4 3/4 3/4
3/4 3/4 3/4
3/4 3/4 3/4
3 3 1/2 3 1/2
3 1/2 3 1/2 3 1/2
3 1/2 3 1/2 3 1/2
4 1/2 4 1/2 4 1/2
4 1/2 4 1/2 4 1/2
4 1/2 4 1/2 4 1/2
1 3/4 1 3/4 1 3/4
1 3/4 1 3/4 1 3/4
1 3/4 1 3/4 1 3/4
78A878A978A10
78A1178A1278A13
78A1478A1578A17
15/161 1/4 1 1/4
1 1/4 1 1/4 1 1/4
1 1/4 1 1/2 1 1/2
78/81X Sprockets2.609” Pitch
TYPE A TYPE B TYPE C
.875
HubDiameter
LengthThru Bore
.875
HubDiameter
LengthThru Bore
.875
www.BlackStarPT.com 107
All dimensions in inches.
Hub Diameter
Length Thru Bore
.110 Nominal
OutsideDiameter
OutsideDiameter
.110Nominal
Double Pitch Sprockets
1” Double PitchConveyor or Drive Series — Standard RollerDouble Pitch — 2040/C2040
No.of
Teeth Eff. No. Teeth
Diameters
CatalogNumber Type
Bore HubApprox.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
11 12 13 14
5.5 6 6.5 7
2.00 2.17 2.33 2.49
1.852 2.000 2.152 2.305
2040B11 2040B12 2040B13 2040B14
B B B B
1⁄2 1⁄2 1⁄2 1⁄2
13⁄16 13⁄16 21⁄32 1 1⁄32
1 3⁄8* 1 9⁄16* 1 9⁄16* 1 11⁄16*
7⁄8 7⁄8 7⁄8 7⁄8
0.3 0.4 0.5 0.6
15 16 17 18
7.5 8 8.5 9
2.65 2.81 2.98 3.14
2.458 2.613 2.768 2.924
2040B15 2040B16 2040B17 2040B18
B B B B
5⁄8 5⁄8 5⁄8 5⁄8
1 7⁄32 1 9⁄32 1 5⁄16 1 15⁄32
1 23⁄32 1 7⁄8 2 3⁄64 2 7⁄32
7⁄8 7⁄8 1 1
0.7 0.8 1.0 1.2
19 20 21 22
9.5 10 10.5 11
3.30 3.46 3.62 3.78
3.080 3.236 3.392 3.549
2040B19 2040B20 2040B21 2040B22
B B B B
5⁄8 5⁄8 5⁄8 5⁄8
1 5⁄8 1 3⁄4 1 25⁄32 1 7⁄8
2 3⁄8 2 35⁄64 2 45⁄64 2 7⁄8
1 1 1 1
1.7 1.5 1.7 1.9
23 24 25 26
11.5 12 12.5 13
3.94 4.10 4.26 4.42
3.706 3.864 4.021 4.179
2040B23 2040B24 2040B25 2040B26
B B B B
5⁄8 5⁄8 5⁄8 5⁄8
2 2 1⁄4 2 1⁄4 2 1⁄4
3 3 1⁄4 3 1⁄4 3 1⁄4
1 1 1 1
2.2 2.4 2.5 2.6
28 30
14 15
4.74 5.06
4.494 4.810
2040B28 2040B30
B B
5⁄8 5⁄8
2 1⁄4 2 1⁄4
3 1⁄4 3 1⁄4
1 1
2.7 2.9
*Has recessed groove in hub for chain clearance.
Conveyor Series — Carrier RollerDouble Pitch — 2042/C2042
No.of
Teeth
Diameters
CatalogNumber Type
Bore Hub Approx.Weight(lbs.)
Type
Catalog Number
Stock Bore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter
Mini-mum
Maxi-mum Diameter
Length Thru Bore
8 9 10 11
3.01 3.35 3.68 4.00
2.613 2.924 3.236 3.549
2042B8 2042B9 2042B10 2042B11
B B B B
5⁄8 5⁄8 5⁄8 5⁄8
1 9⁄32 1 15⁄32 1 3⁄4 1 7⁄8
1 7⁄8 2 7⁄32 2 35⁄64 2 5⁄8
7⁄8 7⁄8 1 1
0.72 1.02 1.50 1.68
12 13 14 15
4.33 4.66 4.98 5.30
3.864 4.179 4.494 4.810
2042B12 2042B13 2042B14 2042B15
B B B B
5⁄8 5⁄8 5⁄8 5⁄8
2 1⁄4 2 1⁄4 2 1⁄4 2 1⁄4
3 1⁄16 3 1⁄4 3 1⁄4 3 1⁄4
1 1 1 1
2.22 2.56 2.72 2.90
16 17 18 19
5.63 5.950 6.270 6.590
5.126 5.442 5.759 6.076
2042B16 2042B17 2042B18 2042B19
B B B B
5⁄8 5⁄8 5⁄8 5⁄8
2 1⁄4 2 1⁄4 2 1⁄4 2 1⁄4
3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4
1 1 1 1
3.10 3.40 3.56 3.72
A A A A
2042A16 2042A17 2042A18 2042A19
19⁄32 19⁄32 19⁄32 19⁄32
1.4 1.7 1.9 2.1
20 21 22 23
6.91 7.24 7.56 7.88
6.392 6.710 7.027 7.344
2042B20 2042B21 2042B22 2042B23
B B B B
3⁄4 3⁄4 3⁄4 3⁄4
2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄8
3 1⁄2 3 1⁄2 3 1⁄2 3 1⁄2
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
4.72 4.84 5.18 5.04
A A A A
2042A20 2042A21 2042A22 2042A23
23⁄32 23⁄32 23⁄32 23⁄32
2.4 2.6 2.9 3.1
24 25 26 28
8.20 8.52 8.84 9.48
7.661 7.979 8.296 8.931
2042B24 2042B25 2042B26 2042B28
B B B B
3⁄4 3⁄4 3⁄4 3⁄4
2 3⁄8 2 3⁄8 2 3⁄8 2 3⁄8
3 1⁄2 3 1⁄2 3 1⁄2 3 1⁄2
1 1⁄8 1 1⁄8 1 1⁄8 1 1⁄8
5.58 5.96 6.22 6.78
A A A A
2042A24 2042A25 2042A26 2042A28
23⁄32 23⁄32 23⁄32 23⁄32
3.2 3.5 3.7 4.8
30 10.11 9.567 2042B30 B 3⁄4 2 3⁄8 3 1⁄2 1 1⁄8 7.56 A 2042A30 23⁄32 5.1
*Has recessed groove in hub for chain clearance.
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
TYPE A
TYPE B
Superior Materials Make Superior Products108
All dimensions in inches.
Hub Diameter
Length Thru Bore
.110 Nominal
OutsideDiameter
OutsideDiameter
.110Nominal
Conveyor or Drive Series — Standard RollerDouble Pitch — 2050/C2050
No.of
Teeth
Eff. No.
Teeth
Diameters
CatalogNumber Type
Bore HubApprox.Weight(lbs.)
Type Catalog Number
Stock Bore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
11121314
5.566.57
2.502.712.913.11
2.3152.5002.6902.881
2050B112050B122050B132050B14
BBBB
5/8 5/8 5/8 5/8
13/161 1 7/321 9/32
1 3/4*1 63/641 23/321 15/16
1 1 1 1
0.620.800.821.00
15161718
7.588.59
3.323.523.723.92
3.0733.2663.4603.655
2050B152050B162050B172050B18
BBBB
5/8 5/8 5/8 5/8
1 13/321 19/321 3/4 1 25/32
2 5/322 23/642 9/162 25/32
1 1 1 1
1.221.441.681.94
19202122
9.51010.511
4.124.324.524.72
3.8504.0454.2414.437
2050B192050B202050B212050B22
BBBB
5/8 3/4 3/4 3/4
1 31/322 2 2
2 63/643 3 3
1 1 1 1
2.242.302.402.54
23242526
11.51212.513
4.925.125.325.52
4.6334.8305.0265.223
2050B232050B242050B252050B26
BBBB
3/4 3/4 3/4 3/4
2 2 2 2
3 3 3 3
1 1 1/4 1 1/4 1 1/4
2.663.303.423.62
AAA
2050A242050A252050A26
23/3223/3223/32
1.61.71.9
2830
1415
5.926.32
5.6176.012
2050B282050B30
BB
3/4 3/4
2 2 1/4
3 3 1/4
1 1/4 1 1/4
3.784.58
AA
2050A282050A30
23/3223/32
2.22.5
*Has recessed groove in hub for chain clearance.
Conveyor Series — Carrier RollerDouble Pitch — 2052/C2052
No.of
Teeth
Diameters
CatalogNumber Type
Bore Hub Approx.Weight(lbs.) Type
Catalog Number
Stock Bore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
8 9 10 11
3.77 4.19 4.60 5.01
3.266 3.655 4.045 4.437
2052B8 2052B9 2052B10 2052B11
B B B B
5⁄8 5⁄8 5⁄8 5⁄8
1 19⁄32 1 25⁄32 2 2
2 23⁄64 2 25⁄32 3 3
1 1 1 1
1.38 1.92 2.30 2.54
12 13 14 15
5.42 5.82 6.23 6.63
4.830 5.223 5.617 6.012
2052B12 2052B13 2052B14 2052B15
B B B B
3⁄4 3⁄4 3⁄4 3⁄4
2 2 2 2 1⁄4
3 3 3 3 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
3.20 3.48 3.88 4.46
A A A A
2052A12 2052A13 2052A14 2052A15
23⁄32 23⁄32 23⁄32 23⁄32
1.6 1.8 2.3 2.5
16 17 18 19
7.03 7.44 7.84 8.24
6.407 6.803 7.198 7.595
2052B16 2052B17 2052B18 2052B19
B B B B
3⁄4 3⁄4 3⁄4 3⁄4
2 1⁄4 2 1⁄4 2 1⁄4 2 1⁄4
3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
4.80 5.34 5.64 6.04
A A A A
2052A16 2052A17 2052A18 2052A19
23⁄32 23⁄32 23⁄32 23⁄32
2.9 3.3 3.6 4.1
20 21 22 23
8.64 9.04 9.44 9.85
7.991 8.387 8.783 9.180
2052B20 2052B21 2052B22 2052B23
B B B B
3⁄4 3⁄4 3⁄4 1
2 1⁄4 2 1⁄4 2 1⁄4 2 3⁄4
3 1⁄4 3 1⁄4 3 1⁄4 3 3⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
6.48 7.00 7.30 8.66
A A A A
2052A20 2052A21 2052A22 2052A23
23⁄32 23⁄32 23⁄32 15⁄16
4.7 5.1 5.2 5.8
24 25 26 28
10.25 10.65 11.05 11.84
9.577 9.973
10.370 11.164
2052B24 2052B25 2052B26 2052B28
B B B B
15⁄16 15⁄16 15⁄16 15⁄16
2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4
3 3⁄4 3 3⁄4 3 3⁄4 3 3⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
9.32 10.30 11.00 11.70
A A A A
2052A24 2052A25 2052A26 2052A28
15⁄16 15⁄16 15⁄16 15⁄16
6.7 7.5 8.2 8.7
30 12.64 11.958 2052B30 B 15⁄16 2 3⁄4 3 3⁄4 1 1⁄4 12.90 A 2052A30 15⁄16 9.9
*Has recessed groove in hub for chain clearance.
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Double Pitch Sprockets1 1/4” Double Pitch
TYPE A
TYPE B
www.BlackStarPT.com 109
All dimensions in inches.
Hub Diameter
Length Thru Bore
.110 Nominal
OutsideDiameter
OutsideDiameter
.110Nominal
Double Pitch Sprockets
1 1/2” Double PitchConveyor Series — Standard RollerDouble Pitch — 2060/C2060
No.of
Teeth
Eff.No.
Teeth
Diameters
CatalogNumber Type
Bore Hub Approx.Weight(lbs.)
Type Catalog Number
Stock Bore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
LengthThru Bore
11121314
5.566.57
3.003.253.493.74
2.7733.0003.2283.457
2060B112060B122060B132060B14
BBBB
3/4 3/4 3/4 3/4
1 1 1/4 1 5/161 9/16
2 1/16 *2 3/8*2 5/642 21/64
1 1/4 1 1/4 1 1/4 1 1/4
1.141.461.521.86
15161718
7.588.59
3.984.224.464.70
3.6883.9204.1524.386
2060B152060B162060B172060B18
BBBB
3/4 3/4 3/4 3/4
1 3/4 1 27/322 3/322 9/32
2 19/322 27/323 3/323 11/32
1 1/4 1 1/4 1 1/4 1 1/4
2.242.643.083.56
19202122
9.51010.511
4.945.195.435.67
4.6204.8545.0895.324
2060B192060B202060B212060B22
BBBB
3/4 3/4 3/4 3/4
2 11/322 9/162 3/4 2 3/4
3 1/2 3 7/8 4 4
1 1/4 1 1/4 1 1/4 1 1/4
3.944.505.025.26
23242526
11.51212.513
5.916.156.396.63
5.5605.7966.0326.268
2060B232060B242060B252060B26
BBBB
3/4 3/4 3/4 3/4
2 3/4 2 3/4 2 3/4 2 3/4
4 4 4 4
1 1/4 1 1/4 1 1/4 1 1/4
5.545.906.086.36
AAA
2060A242060A252060A26
23/3223/3223/32
3.03.73.6
2830
1415
7.117.59
6.7417.215
2060B282060B30
BB
3/4 3/4
2 3/4 2 3/4
4 4
1 1/4 1 1/4
7.027.54
AA
2060A282060A30
23/3223/32
4.14.9
*Has recessed groove in hub for chain clearance.
Conveyor Series — Carrier RollerDouble Pitch — 2062/C2062
No. of
Teeth
Diameters
Catalog Number Type
Bore Hub Approx.Weight(lbs.)
Type
Catalog Number
Stock Bore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter
Minimum Maximum
Diameter
Length Thru Bore
8 9 10 11
4.52 5.02 5.52 6.01
3.920 4.386 4.854 5.324
2062B8 2062B9 2062B10 2062B11
B B B B
3⁄4 3⁄4 3⁄4 3⁄4
1 27⁄32 2 9⁄32 2 9⁄16 2 3⁄4
2 27⁄32 3 11⁄32 3 53⁄64 4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
2.60 3.48 4.54 5.20
12 13 14 15
6.50 6.99 7.47 7.96
5.796 6.268 6.741 7.215
2062B12 2062B13 2062B14 2062B15
B B B B
3⁄4 3⁄4 3⁄4 3⁄4
2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4
4 4 4 4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
5.70 6.28 6.82 7.48
A A A A
2062A12 2062A13 2062A14 2062A15
23⁄32 23⁄32 23⁄32 23⁄32
3.0 3.6 4.0 4.8
16 17 18 19
8.44 8.92 9.41 9.89
7.689 8.163 8.638 9.113
2062B16 2062B17 2062B18 2062B19
B B B B
3⁄4 1 1 1
2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4
4 4 4 4 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
8.18 8.82 9.36 11.10
A A A A
2062A16 2062A17 2062A18 2062A19
23⁄32 15⁄16 15⁄16 15⁄16
5.7 6.2 7.0 8.0
20 21 22 23
10.37 10.85 11.33 11.81
9.589 10.064 10.540 11.016
2062B20 2062B21 2062B22 2062B23
B B B B
15⁄16 15⁄16 15⁄16 15⁄16
2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4
4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
11.66 13.24 13.78 14.90
A A A A
2062A20 2062A21 2062A22 2062A23
15⁄16 15⁄16 15⁄16 15⁄16
8.5 8.9
10.7 11.6
24 25 26 28
12.29 12.77 13.25 14.21
11.492 11.968 12.444 13.397
2062B24 2062B25 2062B26 2062B28
B B B B
15⁄16 15⁄16 15⁄16 1 1⁄4
2 3⁄4 2 3⁄4 2 3⁄4 2 3⁄4
4 1⁄4 4 1⁄4 4 1⁄4 4 1⁄4
1 1⁄4 1 1⁄4 1 3⁄4 1 3⁄4
15.66 16.80 20.20 21.86
A A A A
2062A24 2062A25 2062A26 2062A28
15⁄16 15⁄16 15⁄16 1 1⁄4
12.6 13.8 15.0 17.3
30 15.17 14.350 2062B30 B 1 1⁄4 2 3⁄4 4 1⁄4 1 3⁄4 26.00 A 2062A30 1 1⁄4 19.5
*Has recessed groove in hub for chain clearance.
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
TYPE A
TYPE B
Superior Materials Make Superior Products110
All dimensions in inches.
Double Pitch Sprockets2” Double Pitch
TYPE A
TYPE B
Conveyor or Drive Series — Standard RollerDouble Pitch — 2080/C2080
No.of
Teeth
Eff. No.
Teeth
Diameters
CatalogNumber Type
Bore Hub Approx.Weight(lbs.) Type
Catalog Number
Stock Bore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
LengthThru Bore
11121314
5.566.57
4.014.334.664.98
3.6944.0004.3044.610
2080B112080B122080B132080B14
BBBB
1 1 1 1
1 1/2 1 11/161 25/322 1/8
2 13/16*3 1/8*2 25/323 1/8
1 5/8 1 5/8 1 1/2 1 1/2
2.53.23.34.0
15161718
7.588.59
5.305.635.956.27
4.9175.2265.5365.848
2080B152080B162080B172080B18
BBBB
1 1 1 1
2 9/322 17/322 3/4 2 3/4
3 29/643 51/644 1/4 4 1/4
1 1/2 1 1/2 1 1/2 1 1/2
4.85.76.47.4
AA
2080A172080A18
15/16 15/16
3.43.8
19202122
9.51010.511
6.596.917.237.56
6.1606.4726.7857.099
2080B192080B202080B212080B22
BBBB
1 1 1 1
2 3/4 2 3/4 2 3/4 2 3/4
4 1/4 4 1/4 4 1/4 4 1/4
1 1/2 1 1/2 1 3/4 1 3/4
7.78.39.4
10.0
AAAA
2080A192080A202080A212080A22
15/16 15/16 15/16 15/16
4.34.85.35.8
23242526
11.51212.513
7.888.208.528.84
7.4137.7278.0428.357
2080B232080B242080B252080B26
BBBB
1 1 1 1 1/4
2 3/4 2 3/4 2 3/4 3 1/4
4 1/4 4 1/4 4 1/4 4 3/4
1 3/4 1 3/4 1 3/4 2
10.511.112.014.8
AAAA
2080A232080A242080A252080A26
15/16 15/16 15/161 3/16
6.47.17.58.3
2830
1415
9.4810.11
8.9889.620
2080B282080B30
BB
1 3/161 3/16
3 1/4 3 1/4
4 3/4 4 3/4
2 2
16.617.8
AA
2080A282080A30
1 3/161 3/16
9.210.7
*Has recessed groove in hub for chain clearance.
Conveyor Series — Carrier RollerDouble Pitch — 2082/C2082
No.of
Teeth
Diameters
Catalog Number Type
Bore Hub Approx.Weight(lbs.) Type
Catalog Number
Stock Bore
Approx.Weight(lbs.)
OutsideDiameter
PitchDiameter Minimum Maximum Diameter
Length Thru Bore
8 9 10 11
6.03 6.70 7.36 8.01
5.226 5.848 6.472 7.099
2082B8 2082B9 2082B10 2082B11
B B B B
1 1 1 1
2 17⁄32 2 3⁄4 2 3⁄4 2 3⁄4
3 51⁄64 4 1⁄4 4 1⁄4 4 1⁄4
1 3⁄4 1 3⁄4 1 3⁄4 1 3⁄4
6.4 8.2 9.2
10.1
A
2082A11
15⁄16
5.7
12 13 14 15
8.66 9.31 9.96
10.61
7.727 8.357 8.988 9.620
2082B12 2082B13 2082B14 2082B15
B B B B
1 1 1⁄4 1 1⁄4 1 3⁄16
2 3⁄4 3 1⁄4 3 1⁄4 3 1⁄4
4 1⁄4 4 3⁄4 4 3⁄4 4 3⁄4
1 3⁄4 2 2 2
11.2 15.0 15.8 17.8
A A A A
2082A12 2082A13 2082A14 2082A15
15⁄16 1 3⁄16 1 3⁄16 1 3⁄16
6.8 7.7 9.1
10.7
16 17 18 19
11.25 11.90 12.54 13.19
10.252 10.885 11.518 12.151
2082B16 2082B17 2082B18 2082B19
B B B B
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4
4 3⁄4 4 3⁄4 4 3⁄4 4 3⁄4
2 2 2 2
19.3 21.4 22.9 24.4
A A A A
2082A16 2082A17 2082A18 2082A19
1 3⁄16 1 3⁄16 1 3⁄16 1 3⁄16
12.4 14.1 15.4 18.0
20 21 22 23
13.83 14.47 15.11 15.75
12.785 13.419 14.053 14.688
2082B20 2082B21 2082B22 2082B23
B B B B
1 3⁄16 1 1⁄4 1 1⁄4 1 1⁄4
3 1⁄4 3 1⁄4 3 1⁄4 3 1⁄4
4 3⁄4 4 3⁄4 4 3⁄4 4 3⁄4
2 2 2 2
26.7 28.4 39.6 32.2
A A A A
2082A20 2082A21 2082A22 2082A23
1 3⁄16 1 1⁄4 1 1⁄4 1 1⁄4
19.2 20.8 23.7 24.9
24 25 26 28
16.39 17.03 17.67 18.95
15.323 15.958 16.593 17.863
2082B24 2082B25 2082B26 2082B28
B B B B
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
3 1⁄4 3 1⁄4 3 1⁄2 3 1⁄2
4 3⁄4 4 3⁄4 5 1⁄4 5 1⁄4
2 2 2 2
34.9 37.8 41.5 47.7
A A A A
2082A24 2082A25 2082A26 2082A28
1 1⁄4 1 1⁄4 1 1⁄4 1 1⁄4
27.6 30.2 32.8 38.6
30 20.23 19.134 2082B30 B 1 1⁄4 3 1⁄2 5 1⁄4 2 54.5 A 2082A30 1 1⁄4 43.8
*Has recessed groove in hub for chain clearance.
Maximum bores shown will accommodate a standard keyseat and a setscrew over the keyseat. Slightly larger bores are possible with no keyseat, a shallow keyseat, or a setscrew at an angle to the keyseat.
Hub Diameter
Length Thru Bore
.110 Nominal
OutsideDiameter
OutsideDiameter
.110Nominal