Flexible Couplings

Flexible CouplingsMCS Couplings

This three-piece coupling adopts an aluminum alloy hub and a resin spider. The simple construction ensures that the high torque generated by a gear motor can be transmitted reliably. The proper elasticity of the spider suppresses motor vibration.

Selecting a Coupling

Select the Coupling Type below based on your Motor Item. When selecting a coupling please note the motor shaft diameter can be used for either D1 or D2 of the coupling. Once the motor shaft diameter is determined, the driven shaft diameter can be selected from the alternate value.

Gearhead Model

Load Type

Coupling Type

Motor Shaft Diameter

Nominal Torque

0GN_SA

-

MCL20

0.18 in. 
(4.762 mm)

44 lb-in
(5 N•m)

2GN_SA

Uniform Load

MCL20

0.3125 in.
(7.937 mm)

44 lb-in
(5 N•m)

Shock Load

MCL30

110 lb-in
(12.5 N•m)

3GN_SA
4GN_SA
4GN_RAA
5GN_RAA

Uniform Load

MCL30

0.3750 in.
(9.525 mm)

110 lb-in
(12.5 N•m)

Shock Load

MCL40

220 lb-in
(25.0 N•m)

5GN_SA

Uniform Load

MCL30

0.5 in.
(12.7 mm)

110 lb-in
(12.5 N•m)

Shock Load

MCL40

220 lb-in
(25.0 N•m)

5GE_SA
5GE_RAA

Uniform Load

MCL40

0.625 in.
(15.875 mm)

220 lb-in
(25.0 N•m)

Shock Load

MCL55

530 lb-in
(60.0 N•m)