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Clamp Screw Rigid Coupling CNC Stepper Motor Shaft CouplerDescription of Clamp Screw Rigid Coupling CNC Stepper Motor Shaft Coupler

1.Low Inertia, highsensitivity

2. High Rigid Torque

3.Zero Rotary Clearance

4. HighOil Resistance, high chemical resistance

5. No need ofMaintenance, low cost

6. Suitable for shaft support and push-pull applications

Parameter ofClamp Screw Rigid Coupling CNC Stepper Motor Shaft Coupler

Item Bore size D L L1/L2 E F F1 G M TighteningTorqueN.m
d1 d2
min. max. min. max.
RC16 4 6 4 6 16 16 3.8 M3 0.7
RC16C 5 6 5 6 16 7.5 0.6 3.8 2*M2.5 1
RC20 5 10 5 10 20 30 7 M3 0.7
RC20C 5 8 5 8 30 14.7 0.6 3.8 4*M3 1
RC25 6 12 5 12 25 40 9 M4 1.7
RC25C 6 10 5 10 40 19.5 1 5 4*M4 1.5
RC30 8 16 6 16 32 44 10 M4 1.7
RC30C 8 10 6 10 44 21 1.2 5.5 4*M4 2.5
RC40 10 24 10 24 43 50 12 M6 7
RC40C 10 22 10 22 50 24.2 1.5 6.5 4*M5 4
Item RatedTorque(N.m) Max.torque(N.m) Allowablespeed(min-1) Moment ofinertia Net weight(g)
RC16 0.3 0.6 20000 0.4 11
RC16C 0.3 0.6 18000 0.3 9
RC20 0.5 1 20000 1.3 20
RC20C 0.5 1 16000 0.9 15
RCL20C 0.5 1 14000 0.9 18
RC25 1 2 20000 3.9 39
RC25C 1 2 16000 2.7 29
RCL25C 1 2 12000 3.4 38
RC30 2 4 19000 12 71
RC30C 2 4 14000 7.1 51
RCL30C 2 4 10000 10 70
RC40 4.5 9 12000 46 170
RC40C 4.5 9 10000 34 130
RCL40C 5 10 8000 42 160

Order example

Item type Outer dia. clamp screw d1 d2
RC 43 C 18 22