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.

Round Shaft Type

Type Motor Item Coupling Type Motor Shaft Diameter Nominal Torque

Standard / HIgh-Resolution Type

PKP213 
PKP214
MCS14 0.1969 in.
(5 mm)
17.7 lb-in
(2.0 N•m)
PKP223 
PKP224 
PKP225
MCS14
PKP233
PKP235
PKP244 
PKP245 
PKP246
MCS20 44 lb-in
(5.0 N•m)
PKP264 MCS20 0.25 in.
(6.35 mm)
44 lb-in
(5.0 N•m)
PKP266 
PKP268
MCS30 110 lb-in
(12.5 N•m)

Geared Type

Type Motor Item Gear Ratio Coupling Type Motor Shaft Diameter Nominal Torque
Spur Gear (SH) PK223P-SG_
PKP223-SG_
7.2, 9, 10, 18, 36 MCS14 0.1969 in.
(5 mm)
17.7 lb-in
(2.0 N•m)
PK243-SG_
PKP243-SG_
3.6, 7.2
9, 10, 18, 36 MCS20 44 lb-in
(5.0 N•m)
PK264-SG_
PKP264-SG_
3.6, 7.2, 9, 10 MCS30 0.3150 in. 
(8 mm)
110 lb-in
(12.5 N•m)
18, 36 MCS40 150 lb-in
(17.0 N•m)
PK296-SG_

3.6, 7.2, 9

MCS40 0.4724 in.
(12 mm)
150 lb-in
(17.0 N•m)

10, 18, 36

MCS55 530 lb-in
(60.0 N•m)

 

For geared motors, enter the gear ratio into "_".