ClevelandSHAFT MOUNT &SCREW CONVEYOR REDUCERS
SHAFT MOUNT & SCREW CONVEYOR REDUCER FEATURES
Shaft Mount reducers available in sizes 2–10
Suitable for AGMA Class l, ll, or lll applications
Ratios Available: 9:1 (size 2–6), 15:1 & 25:1
Carburized, case hardened, and ground helical gearing
Alloy steel shafts with hardened, and ground gear seats and bearing/seal journals designed to maximize durability and operating life
Double lip spring loaded shaft seals designed to prevent oil leakage in harsh operating environments
Oversized bearings designed to ensure long and reliable service life in severe duty applications
High strength cast iron housings are precision machined to provide maximum support for all shafts
Warranty: 18 months from shipment or 1 year from installation, whichever comes first
Reducers and Accessories stocked in multiple locations
Screw Conveyor reducers available in sizes 2–6
CGUSM 3 - 25
CGUSM X - XXCGUSM for sizes 2-6CGSM for sizes 7-10
Shaft Mount Reducer
Nomenclature Example:
Gear Case Size 2-10
Gear Case Size 3
Ratio: 09 (9:1), 15 (15:1), or 25 (25:1)
25:1 Ratio
NOMENCLATURE
Contents Page
Features/Benefits 2
Selection Guides 3-5
Shaft Mount Reducer Dimensions 6
Shaft Mount Reducer Accessories 6-7
Screw Conveyor Reducer Dimensions 8
Screw Conveyor Reducer Accessories 9
Shaft Mount Reducer Repair Kits 10
Exploded View and Parts List 11
Engineering/Technical Data 12-13
Install/Lubrication Instruction 14-15
2
SHAFT MOUNT AND SCREW CONVEYOR REDUCERSSelection Guide - Class I
** Fan Cooling Required, Consult Factory
3
Selection GuideClass I Service @ 1750 RPM Input Speed
Input HP Output RPM Size-Ratio Size-Ratio 7-89-1213-1819-2627-4546-7879-8586-115116-140141-2008-1011-1516-2324-3334-5960-8081-101102-140141-20010-1314-1920-2829-4142-7576-125126-20013-1819-2526-3839-5758-7071-8182-114115-125126-20016-2223-3233-4950-7071-7475-12519-2728-3940-6061-7071-12024-3435-5051-7071-7879-12032-4647-6970-12041-5960-7071-9091-12350-7071-7576-8081-120
20
25
30
40
50
60
75
100
125
150
7-256-255-254-254-154-15**
7-256-255-25**5-15**4-15
8-257-256-255-15**
9-258-257-256-256-25**6-15**5-15**
9-258-257-257-15
10-259-258-257-25**
10-259-258-25
10-259-25**
10-259-15**
10-2510-15*
10-259-258-257-156-155-154-154-09**4-09**3-09**10-259-258-257-156-155-15**5-09**4-09**4-09**10-259-258-157-156-155-09**4-09**10-259-158-157-156-156-15**6-09**5-09**5-09**10-259-158-157-157-256-15**10-159-158-157-15**7-15**10-159-158-158-15**7-15**10-159-15**8-15**10-159-25**9-15**8-15**10-1510-25**10-15**9-15
Selection GuideClass I Service @ 1750 RPM Input Speed
Input HP Output RPM Size-Ratio Size-Ratio
1/2
3/4
1
1 1/2
2
3
5
7 1/2
10
15
4-64-56-104-56-78-1545-78-1213-234-67-1011-1718-324-56-1011-1516-2627-515-67-910-1718-2627-4647-7071-8586-924-67-910-1516-2627-4041-7475-8586-140140-20056-89-1213-2021-3637-5657-8586-103104-115116-2005-67-89-1314-1920-3233-5657-8586-9394-140141-200
2-25
2-25
4-253-252-252-15
4-253-252-252-15
5-254-253-253-152-15
6-255-254-254-153-15
2-253-252-254-253-252-255-254-253-252-255-254-253-252-156-255-254-253-252-157-256-255-254-153-152-152-252-158-257-256-255-254-153-152-152-092-099-258-257-256-255-154-153-153-092-092-0910-259-258-257-256-155-154-154-093-09**3-09**
** Fan Cooling Required, Consult Factory
SHAFT MOUNT AND SCREW CONVEYOR REDUCERSSelection Guide - Class II
4
Selection GuideClass II Service @ 1750 RPM Input Speed
Input HP Output RPM Size-Ratio Size-Ratio
20
25
30
40
50
60
75
100
125
9-1213-1718-2627-3839-6869-8081-8990-117118-125126-20011-1516-2223-3334-4950-8081-9495-125126-174175-20013-1920-2728-4142-6061-7677-8990-125126-20018-2526-3637-5657-7576-8889-120121-20022-3233-4647-7071-7273-12027-3940-5657-7071-7576-8990-12034-4950-7374-7576-12046-6768-7576-103104-12059-7576-8586-120
7-256-255-25
5-15**4-15**
8-257-256-256-155-15**
9-258-257-256-256-156-15**
9-258-257-25
6-15**
10-259-258-258-15
10-259-258-258-15
10-259-258-15
10-259-15**
10-25
10-259-258-257-156-155-155-155-09**4-09**4-09**10-259-258-157-156-156-095-09**5-09**4-09**10-259-158-157-156-156-096-09**5-09**10-259-158-157-157-156-09**6-09**10-159-158-158-257-15**10-159-158-158-258-157-15**10-159-158-258-15**10-159-25**9-15**8-15**10-1510-159-15**
Selection GuideClass II Service @ 1750 RPM Input Speed
Input HP Output RPM Size-Ratio Size-Ratio
4-64-56-94-56-89-165-78-1112-225-67-1112-1819-344-56-910-1415-2425-474-56-89-1415-2223-3839-7071-754-67-89-1415-2425-3738-6970-8586-136137-14056-910-1314-2122-3839-5960-8586-110111-122123-140141-20056-78-1213-1819-2930-5253-8485-140141-2007-910-1213-1920-2728-4748-8283-140141-150151-200
2-25
3-252-25
4-253-252-252-15
4-253-252-252-15
5-254-253-253-15
2-15
6-255-254-253-15
6-255-254-15
2-253-252-254-253-252-254-253-252-255-254-253-252-156-255-254-253-152-157-256-255-254-153-152-152-258-257-256-255-254-153-152-152-092-099-258-257-256-255-154-153-153-092-152-092-0910-259-258-257-256-155-154-153-093-0910-259-258-257-256-155-154-094-093-09**
1/3
1/2
3/4
1
1 1/2
2
3
5
7 1/2
10
15
** Fan Cooling Required, Consult Factory
SHAFT MOUNT AND SCREW CONVEYOR REDUCERSSelection Guide - Class III
5
Selection GuideClass III Service @ 1750 RPM Input Speed
Input HP Output RPM Size-Ratio Size-Ratio
10
15
20
25
30
40
50
60
75
7-89-1213-1819-2627-4546-7879-9293-141142-20010-1314-1920-2829-4142-7576-9376-125126-131132-20013-1819-2526-3839-5758-7071-114115-125126-20016-2223-3233-4950-7475-104105-113114-125126-20019-2728-3940-6061-7071-9899-125126-20026-3738-5354-7071-8485-8990-12032-4647-6970-7576-110111-12039-5657-7576-8586-11550-7273-7576-120
7-256-255-25
4-15
8-257-256-25
5-15
9-258-257-256-256-155-15**
9-258-257-256-156-156-15**
10-259-258-257-25
6-15**
10-259-258-25
10-259-258-15
10-259-25
10-259-15**
10-259-258-257-156-155-154-154-093-0910-259-258-157-156-155-155-095-094-0910-259-158-157-156-156-095-09**5-09**10-259-158-157-156-096-09**6-09**6-09**10-159-158-157-157-156-09**6-09**10-159-158-158-157-157-15**10-159-158-258-157-15**10-159-159-158-1510-159-25**9-15**
Selection GuideClass III Service @ 1750 RPM Input Speed
Input HP Output RPM Size-Ratio Size-Ratio
1/41/3
1/2
3/4
1
1 1/2
2
3
5
7 1/2
4-65-94-56-78-1545-78-1213-234-67-1011-1718-324-56-1011-1516-2627-515-78-1314-2122-3637-714-56-78-1213-2021-3233-5758-8586-11356-89-1213-2021-3637-5657-8586-103104-140141-2005-67-89-1314-1920-3233-5657-8586-9394-140141-200
2-25
3-252-25
4-253-252-252-15
5-254-253-253-152-15
6-255-254-254-153-15
2-252-254-253-252-255-254-253-252-255-254-253-252-256-255-254-253-252-156-255-254-253-152-158-257-256-255-254-153-152-152-099-258-257-256-255-154-153-153-092-092-0910-259-258-257-256-155-154-154-093-093-09
SHAFT MOUNT AND SCREW CONVEYOR REDUCERSDimensions
Size M N P Q R S T KEY U V W MAX.
Size A B C D E F G H MIN/MAX J K L
Backstop AssembliesCleveland’s backstop assemblies easily mount internally on the enclosed end of the high speed shaft. They allow smooth one directional operation preventing reverse rotation and slippage. They are dimensionally interchangeable with most other manufacturers’ assemblies.
Note:Torque Arm Assembly Included with Reducer
6
Reducer Part # Weight (lbs)Size
SHAFT MOUNT REDUCERAccessories
Motor MountsManufactured from heavy gauge steel, Cleveland Gear motor mounts provide a solid platform for most NEMA frame motors. The adjustable top plate is used to produce the proper belt tensioning.
Belt GuardsThe CGC belt guard’s hinged design provides
for easy access to belts and sheaves. The slotted metal construction assembles to the reducer and motor mounting holes. They are sized to fit most common sheave diameters.
Tapered Bushing Kits Cleveland Gear twin tapered bushing kits are perfectly sized for CGUSM reducers (as well as other manufacturers’ shaft mount drives). They assure you of fast and simple installation as well as reliable support on both sides of the reducer. All CGC tapered bushing kits come complete with fastening bolts and a full-length key.
Weight (lbs)
Part #ReducerSize
BoreSize
Weight (lbs)
Part #ReducerSize
BoreSize
7
Long Motor Mounts Available – Sizes 2 to 6(Please Consult Factory)
Reducer Part # Weight (lbs)Size
Size
SCREW CONVEYOR REDUCERSDimensions
Items required for Screw Conveyor Drive 1. Shaft Mount Reducer
2. Screw Conveyor Adaptor Kit
3. Output Drive Shaft
8
CGUSM2
CGUSM3
CGUSM4
CGUSM5
CGUSM6
6"-9"9"-12"12"-14"12"-20"
9"9"-12"12"-14"12"-20"
9"9"-12"12"-14"12"-20"18"-24"
9"-12"12"-14"12"-20"18"-24"
12"-14"12"-20"18"-24"
1.502.002.443.00
1.502.002.443.00
1.502.002.443.003.44
2.002.443.003.44
2.443.003.44
6.006.006.696.88
6.006.006.696.88
6.006.006.696.889.13
6.006.696.889.13
6.696.889.13
2.132.132.752.88
2.132.132.752.88
2.132.132.752.883.88
2.132.752.883.88
2.752.883.88
3.003.003.003.00
3.003.003.003.00
3.003.003.003.004.00
3.003.003.004.00
3.003.004.00
7.757.757.757.75
8.638.638.638.63
9.259.259.259.259.25
9.259.259.259.25
9.259.259.25
17/3221/3221/3225/32
17/3221/3221/3225/32
17/3221/3221/3225/3229/32
21/3221/3225/3229/32
21/3225/3229/32
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"
3.563.563.563.56
3.693.693.693.69
4.004.004.004.004.00
4.254.254.254.25
5.505.505.50
Size Part Screw Shaft Number Diameter Diameter
Weight(lbs)
CGUSM2
CGUSM3
CGUSM4
CGUSM5
CGUSM6
2SC05152SC05202SC05242SC05303SC05153SC05203SC05243SC05304SC05154SC05204SC05244SC05304SC05345SC05205SC05245SC05305SC05346SC05246SC05306SC0534
6"-9" 9"-12"12"-14"12"-20" 9" 9"-12"12"-14"12"-20" 9" 9"-12"12"-14"12"-20"18"-24" 9"-12"12"-14"12"-20"18"-24"12"-14"12"-20"18"-24"
1.50"2.00"2.44"3.00"1.50"2.00"2.44"3.00"1.50"2.00"2.44"3.00"3.44"2.00"2.44"3.00"3.44"2.44"3.00"3.44"
2021222323242526303132333440414243505254
SCREW CONVEYOR REDUCERSAccessories
Screw Conveyor Adaptor KitsAn SCADK mounting adaptor kit provides all the components needed to prepare a CGUSM reducer for screw conveyor applications. Each kit consists of CEMA mounting adaptor, output shaft keeper plate, oil seal, key and mounting hardware.
Output Drive ShaftsSolid output shafts are tapered to fit CGUSM hollow bore on the adaptor side of the housing. They are available in standard CEMA shaft diameters and configurations.
Adaptor Kits Size Part # 2 2SCADK 3 3SCADK 4 4SCADK 5 5SCADK 6 6SCADK
Weight (lbs)2022253550
Note: Three Hole Drive-Shafts Available (Consult Factory)
9
SHAFT MOUNT & SCREW CONVEYOR REDUCERSService Repair Kits
Torque Arm KitsWhile each reducer comes with its own torque arm kit at no extra charge, Cleveland Gear offers torque arm kits as spare parts. The torque arm kits are composed of interlocking heavy gauge steel parts for proper tensioning and tightening.
Repair KitsCleveland Gear offers two levels of repair kits for gear cases 4–10. KIT1 consists of the input & output seals, gaskets & shims complete set of bearings. KIT2 consists of everything in KIT1 plus the complete set of gearing. KIT2 is offered in all three ratios 9:1 (sizes 4– 6), 15:1, and 25:1.
Kit 1 Kit 2
Size Part Weight Number
CGSM4-KIT1CGSM5-KIT1CGSM6-KIT1CGSM7-KIT1CGSM8-KIT1CGSM9-KIT1CGSM10-KIT1
45678910
25252530355070
10
Size Part Weight Number
2CGTA3CGTA4CGTA5CGTA6CGTA7CGTA8CGTA9CGTA10CGTA
2345678910
101015152030405060
CGSM4-09KIT2CGSM4-15KIT2CGSM4-25KIT2CGSM5-09KIT2CGSM5-15KIT2CGSM5-25KIT2CGSM6-09KIT2CGSM6-15KIT2CGSM6-25KIT2CGSM7-15KIT2CGSM7-25KIT2CGSM8-15KIT2CGSM8-25KIT2CGSM9-15KIT2CGSM9-25KIT2CGSM10-15KIT2CGSM10-25KIT2
Size Part Weight Number
4
5
6
7
8
9
10
505050505050505050125125125125200200250250
11
SHAFT MOUNT & SCREW CONVEYOR REDUCERSParts List & Exploded View
1234567891011121314151617181920
Right hand gear caseOutput hub bearingOutput hub2nd reduction gear key1st reduction gear keyIntermediate Pinion2nd reduction gearOil pipe plugLeft hand gear caseBreather plugOutput hub bearing cover gasketOutput hub bearing coverOutput hub oil sealCover lock washerCover boltCase boltHollow dowelOutput hub collarOutput hub snap ringCase plain washer
Lifting eyeInput shaft oil sealInput shaft bearing coverBearing cover gasketIntermediate bearing coverBearing cover gasketIntermediate pinion bearing (input side)Input shaft bearing (input side)Input shaft square keyInput shaft & pinion1st reduction gearInput shaft bearing (output side)Intermediate pinion bearing (output side)Backstop cover gasketBackstop cover Intermediate cover gasketIntermediate pinion coverCross recessed screwCase nutCase lock washer
2122232425262728293031323334353637383940
Number Part NameNumber Part Name
9.268.99.688.949.13
197420832118192519161827180918141819
858585808075757575
199421002072204420101863184719251823
23.3724.7524.3825.5625.1424.8424.6225.6624.44
140140140125125120120120120
14.0414.8715.1315.415.3415.2315.0815.1215.42
1851178093617881826
MaximumInput RPM
MaximumOutput RPM
Size
CGUSM2CGUSM3CGUSM4CGUSM5CGUSM6CGSM7CGSM8CGSM9CGSM10
Nominal Ratio 9:1 Nominal Ratio 15:1 Nominal Ratio 25:1
ActualRatio
Maximum Input RPM
MaximumOutput RPM
ActualRatio
Maximum Input RPM
MaximumOutput RPM
ActualRatio
200200200200200
9, 15, 25
9, 15, 25
9, 15, 25
9, 15, 25
9, 15, 25
15, 25
Shaft Size10 20 30 50 80 100 120 140 160 180 200
Size
CGUSM2
CGUSM3
CGUSM4
CGUSM5
CGUSM6
CGSM7
Overhung Load (lbs) at Various RPMNominalRatio
200017505400524065206360746070609100820011400
15101320425041205180506058605540710064009500
12701110368035704510441050804800610055007300
1010890305029603800271042804040500045005950
840730262025403230316036903490410037004750
820710244023703000293034503260405036505050
720630231022402830277032703090370034004500
720630221021402710264031102940355033004300
710620211020502600253029802820340032504250
710620204019802510245028802720330032004200
700610198019202430237027902640320031504150
1 7/161 15/161 15/162 3/162 3/162 7/162 7/162 15/162 15/163 7/163 7/16
12
Actual Ratios, Maximum Input Speeds and Driven Speeds
SHAFT MOUNT & SCREW CONVEYOR REDUCERSTechnical Data
CGUSM2 58 lbs
CGUSM3 98 lbsCGUSM4 139 lbsCGUSM5 207 lbsCGUSM6 285 lbsCGSM7 462 lbsCGSM8 633 lbsCGSM9 760 lbsCGSM10 885 lbs
Reducer Weights
Size Weight
Reducer – Output Shaft Overhung Load Ratings
SHAFT MOUNT & SCREW CONVEYOR REDUCERSTechnical Data
NEMA Motor Information (1750 RPM)
Minimum Sheave Diameters
13
CGUSM2CGUSM3CGUSM4CGUSM5CGUSM6CGSM7CGSM8CGSM9CGSM10
Size Nominal RatioShaftDiameter
1 1/81 1/41 7/161 15/162 3/162 7/162 7/16 2 7/162 11/16
5.05.06.57.07.0
9:1 15:1 25:13.04.04.65.46.26.26.28.08.5
3.04.04.65.46.26.26.28.08.5
11 1/22357 1/2101520253040506075100125150200
2.22.42.42.43.03.03.84.44.44.45.26.06.87.48.68.610.510.513.2
7/87/87/81 1/81 1/81 3/81 3/81 5/81 5/81 7/81 7/82 1/82 1/82 3/82 3/82 7/83 3/83 3/83 3/8
143T145T145T182T184T213T215T254T256T284T286T324T326T364T365T405T444T445T447T
NEMAMotor Frame
ShaftDiameter
Horsepower(HP)
MinimumSheave Diameter
1. Use lifting eyebolts or lifting lugs to lift reducer. 2. Determine the running position from the figures below. Note that the reducer is supplied with four plugs around the sides. These plugs must be arranged relative to the running positions as follows: the bottom plug is the drain plug, please replace this plug with the magnetic plug. REMOVE THE RUBBER STRAP FROM THE BREATHER PLUG, and install it on the top-most hole. Of the two remaining plugs, the lowest one is the minimum oil level plug. The running position is not limited to the positions shown, but if running over 20° either way in position B & D, or 5° in positions A & C, the oil level plug cannot be used safely to check the oil level. It can be used safely to check the oil level if, during checking, the torque arm is disconnected and the reducer is swung to within 20° for positions B & D, or 5° for positions A & C.Because of the different possible positions of the reducer, it may be necessary to make special adaptations using the lubrication filling holes furnished along with other standard pipe fittings, stand pipes, and/or oil level gauges as required.
3. Mount reducer on driven shaft as follows. To ensure that drive is not unexpectedly started, turn off and lock out power source before proceeding. Failure to observe these precautions could result in bodily injury. (A) Install pulley on gearbox input shaft as close to the reducer as possible, and mount reducer on driven shaft, as close to bearing as practical (Keep minimum distance for removing bushing screws, see Fig 2). Failure to do this will cause excess loads in bearings and could cause premature failure. (B) Install motor and wedge belt drive with the belt pull at approximately 90 degrees to the centerline between driven and input shafts (see Fig 3). This will permit tensioning of the wedge belt drive with the torque arm, which should preferably be in tension. If output hub runs counter clockwise, torque arm should be positioned to the right (see Fig 4). (C) Install torque arm fulcrum on a rigid support so that the torque arm will be at an approximate right angle to the centerline through the driven shaft and torque arm case bolts (see Fig 5). Make sure there is sufficient take up in the turnbuckle for belt tension adjustment.
INSTALLATION AND LUBRICATION
B - Breather D - Drain L - Level P - Plug
Note: Below 15 RPM output speed, oil level must be adjusted to reach highest oil level plug “P”.
14
INSTALLATION AND LUBRICATION (cont.)
Note: Below 15 RPM output speed, oil level must be adjusted to reach highest oil level plug “P”.
Note: If mounting position is “B” or “D” and backstop is used, Consult Factory for proper oil level.
TemperatureMobil TypeAGMA RatingISO GradeCGUSM2CGUSM3CGUSM4CGUSM5CGUSM6CGSM7CGSM8CGSM9CGSM10
15ºF to 60ºF
SHC 630 SHC 630 SHC 6325 5 6220 220 320
60ºF to 125ºF 60ºF to 125ºF
1-400 RPM1-150 RPM1-100 RPM1-40 RPM1-40 RPM1-40 RPM1-40 RPM1-40 RPM1-40 RPM
N/A151-400 RPM101-400 RPM41-400 RPM41-400 RPM41-400 RPM41-400 RPM41-400 RPM41-400 RPM
1-400 RPM1-150 RPM1-100 RPM1-40 RPM1-40 RPM1-40 RPM1-40 RPM1-40 RPM1-40 RPM
Recommended Oil Information
Approximate Oil Capacity (quarts)
15
ABCDEF
.8751.62511.6251.75
1.51.5.752.252.6253
2.8752.251.251.753.3754.25
3.2543.25478.625
4.2554.2568.6259.125
6.587.259.2515.37516.375
8.51110.58.519.12516.375
131312.514.2525.37525.375
231415.7518.754141
MountingPosition CGUSM2 CGUSM3 CGUSM4 CGUSM5 CGUSM6 CGSM7 CGSM8 CGSM9 CGSM10
CLEVELAND GEAR’S LIBRARY OF INFORMATION“MUSTS” FOR YOUR ENGINEERING DEPARTMENT
Catalog #810–“WG” Series Speed Reducers Ratings, selection and dimensional information for 40mm to 200mm center distance drives in ruggedcast iron housings. Includes single reduction and double reduction models.
Catalog #750–Standard Parallel & Custom DrivesStandard Parallel Shaft, Reverse Engineered and Custom Enclosed Gear Drives Brochure. Provides information on our capabilities and depicts units & the applications Cleveland has manufactured.
Catalog #410–“M” Series Modular Speed
ReducersRatings and dimensional data for
the 1.33" to 5.25" center distance drives, both single and double
reduction worm gear drives. Accessory kit information is
provided. Part numbering and configuration data is also included.
Catalog #901–Cleveland Gear CapabilitiesOverview BrochureInformation on CGC history, open gearing, enclosed drives, current design and production capabilities. Also includes gear-box rebuild and refurbishment services.
Catalog #425–Stainless Steel Speed ReducersInformation on Cleveland’s Stainless Steel worm gear reducers for food, beverage and tough environmental applications. Three center distances available for quick delivery.
Catalog #412–Inline Helical Ratio
MultipliersCreate Double Reduction
Helical Worm gear units from stock components.
Available in three case sizes, NEMA flange sizes 56C to 210TC. Offered & stocked
in 5 ratios.
Catalog #700–Millennium Gear Drives
Catalog provides data on ratings, dimensions, and design configurations for
5" - 12" C.D. drives. Universal mounting with motor adapters & helical
attachments.
TOLL-FREE 800-423-3169 FAX 216-641-2731
CLEVELAND GEAR CO.
www.clevelandgear.com
3249 EAST 80th STREETCLEVELAND, OHIO 44104
PHONE 216-641-9000
Catalog #600–Cleveland Open Worm
GearingProvides dimensional and
rating data for a broad rangeof ratios in center distances
from 3" through 36".Dimensions for both bolt on
and composite type gearsare shown.
2017 Cleveland Gear Company Printed in the U.S.A. CG 310