48 Model DCB Clutch Descriptions DCB Series Clutch The DCB clutch/brake is designed to start and stop a load. It will stop the load in the same position without any cumulative error. The DCB will stop any load that is able to start. The con- trol tangs are used to hold open the clutch or brake spring, which are wrapped in opposite directions. When the clutch and brake control tangs rotate with the input hub, the input hub and output shaft are engaged by the clutch spring. When the stop collar locks the control tang of the brake spring, it wraps down engaging the output shaft to the brake hub. The clutch spring unwraps at the same time, allowing the input hub to freely rotate. SC and DCB Comparison PERFORMANCE CAPABILITY* STARTING STOPPING APPLICATION RECOMMENDED TORQUE TORQUE RPM CYCLES/ ACTUATION REQUIREMENT SERIES MAX. MAX. MAX. MINUTE METHOD (LB. – IN.) (LB. – IN.) MAX. Overrunning Reverse Engaged in One SC Series 2500 N/A 1800 N/A Input Direction Only OR-Models Rotation Start-Stop (Random SC Series 2500 0 1800 N/A Mechanical Positioning) SS – Models SC Series Single Revolution SR – Models 2500 50 1800 1800 Mechanical (Accurate Positioning) DCB Series 2500 2500 1800 1200 AC or DC Solenoid Plate DCB Actuator Limit Stop (ALS) Anti Backup Spring Control Collar Brake Spring Drive Spring Input Hub Anti Overrun Spring Actuator Coil Brake Control Tang Stationary Brake Hub Clutch Control Tang Rotating Hub Input Shaft Output *Note: See page 47 and 53 for performance capabilities of individual models. Wrap Spring Clutches & Brakes ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com [email protected]Sold & Serviced By:
Transcript
48
Model DCB Clutch Descriptions
DCB Series ClutchThe DCB clutch/brake is designed tostart and stop a load. It will stop theload in the same position without anycumulative error. The DCB will stopany load that is able to start. The con-trol tangs are used to hold open theclutch or brake spring, which arewrapped in opposite directions.When the clutch and brake controltangs rotate with the input hub, theinput hub and output shaft areengaged by the clutch spring. Whenthe stop collar locks the control tangof the brake spring, it wraps downengaging the output shaft to thebrake hub. The clutch spring unwrapsat the same time, allowing the inputhub to freely rotate.
See pages 48 to 51 for applications and selection information
Dimensions
Mechanical
* When operating below minimum speeds, system inertias may have to be increased for proper product performance.Consult factory for application assistance.
B
0.21
0.33
0.46
0.527
0.698
A
2.500
3.381
4.375
4.312
6.125
MODELNO.
DCB–2
DCB–4
DCB–5
DCB–6
DCB–8
C
0.09
0.15
0.25
0.22
0.25
D
0.41
0.83
1.09
0.36
–
E
0.09
0.09
0.09
0.19
0.25
F
0.16
0.175
0.23
0.22
–
G
0.020
0.035
0.045
–
–
H
1.25
1.25
1.56
1.25
1.96
K
0.375
0.500
0.625
–
–
L
1.188
1.249
1.561
2.500
4.000
ENGLISH
#80.125 Pin Hole and 8-32, 90 Deg Apart0.125 Pin Hole and 8-32, 135 Deg Apart
3/4 Bore 10-32 SS and3/16 x 3/32 Keyway1 Bore .187 Pin Hole
no Keyway1-1/4 Bore 1/4-20 SS
and 5/16 x 5/32 Keyway1-1/2 Bore 1/4-20 SSand 3/8 x 1/8 Keyway
(1 and 1-3/8 Bore avail-able)
METRIC
M4 x .73mm Pin Hole and
M4 x .7, 90 Deg Apart3mm Pin Hole and
M4 x .7, 135 Deg Apart20mm Bore M5 x .8 SS
and 6 x 2.8 Keyway25mm Bore 5mm Pin
Hole no Keyway35mm Bore M6 x 1 SSand 10 x 3.3 Keyway
40mm Bore M6 x 1 SSno Keyway
IENGLISH
0.250
0.375
0.5
3/4 or 1
1-1/4 or 1-1/2
METRIC
10mm
10mm
12mm
20mmor
25mm
35mmor
40mm
J (BORE)
MODELNO.
DCB–2
DCB–4
DCB–5
DCB–6
DCB–8
N
1.70
1.96
2.26
2.31
2.31
O
2.00
2.38
2.62
4.25
5
P
1.00
1.19
1.31
2.12
2.5
Q
1.00
1.00
1.31
2.12
2.5
R
3.39
4.10
4.56
5.75
7
S
0.710
0.807
0.910
1.380
1.8
X
–
–
–
0.125
0.018
Y
0.600
0.645
0.780
1.562
2.375
T
1.95
2.56
2.50
2.92
3.118
U.198 x.375
.260 x.50
.260 x.50
.386 x.80
.386 x.80
V4-Holes, .187 DIA EQ.
SP. ON 2.125 B.C.4-Holes, .187 DIA EQ.
SP. ON 2.125 B.C.4-Holes, .187 DIA EQ.
SP. ON 3.125 B.C.4-Holes, .281 DIA EQ.
SP. ON 5.00 B.C.
4-Holes, .394 DIA EQ.SP. ON 5.87 B.C.
ENGLISH
0.062
0.125
0.125
–
–
–
METRIC
2mm
3mm
3mm
–
–
–
M
ENGLISH
3-Holes, 6-32 EQ.SP. ON .938 B.C.3-Holes, 6-32 EQ.SP. ON .938 B.C.
3-Holes, 10-32 EQ.SP. ON 1.250 B.C.
3-Holes, 1/4-20 EQ.SP. ON 2.062 B.C.
6-Holes, 5/16-18 EQ. SP. ON 3.375 B.C.
METRIC
3-Holes, M4 x .7 EQ.SP. ON 23.825 B.C.
3-Holes, M4 x .7 EQ.SP. ON 23.825 B.C.
3-Holes, M5 x .8 EQ.SP. ON 31.750 B.C.3-Holes, M6 x 1 EQ.SP. ON 52.375 B.C.
DCB6-CW-24VDC-AO-AB-1.0-4STPDCB6-CW-24VDC-AO-AB-3/4-1STPDCB6-CW-90VDC-AO-AB-3/4-1STPDCB6-CW-115VAC-AO-AB-3/4-1STPDCB6-CW-24VDC-AO-AB-1.0-1STPDCB6-CW-90VDC-AO-AB-1.0-1STPDCB6-CW-115VAC-AO-AB-1.0-1STPDCB6-CW-115VAC-AO-AB-3/4-2STPDCB6-CW-24VDC-AO-AB-1.0-2STPDCB6-CW-115VAC-AO-AB-1.0-2STPDCB6-CW-115VAC-AO-AB-1.0-3STPDCB6-CW-12VDC-AO-AB-3/4-4STPDCB6-CW-115VAC-AO-AB-3/4-4STPDCB6-CW-24VDC-AO-AB-3/4-2STPDCB6-CW-115VAC-AO-AB-1.0-4STPDCB6-CW-90VDC-AO-AB-1.0-4STPDCB6-CW-12VDC-AO-AB-1.0-24STPDCB6-CW-12VDC-AO-AB-1.0-1STPDCB6-CW-115VAC-AO-AB-3/4-3STPDCB6-CW-12VDC-AO-AB-3/4-1STPDCB6-CW-90VDC-AO-AB-3/4-2STPDCB6-CW-24VDC-AO-AB-3/4-3STPDCB6-CW-12VDC-AO-AB-3/4-2STPDCB6-CW-12VDC-AO-AB-1.0-3STP(continued on next page)
Super ClockwiseD326-27-007D326-27-008D326-27-009D326-27-010D326-27-011D326-27-012D326-27-016D326-27-019D326-27-020D326-27-021D326-27-022D326-27-023D326-27-024
Super ClockwiseD328-27-013D328-27-014D328-27-015D328-27-019D328-27-020D328-27-021D328-27-023D328-27-031D328-27-037D328-27-038D328-27-039D328-27-040D328-27-043D328-27-044D328-27-045D328-27-046
