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VEXTA Step Motors
Flexible Couplings
Flexible Couplings

MCS 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.

  • No backlash
  • High strength (usable for geared motors)

Selecting a Coupling

Select the Coupling Type below based on your Motor Model. 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.

If you need help in properly selecting a coupling, please contact our Technical Support team at 1-800-GO-VEXTA (468-3982) or e-mail us.

Type Motor Model Gear Ratio Coupling Type Motor Shaft Diameter Nominal Torque
0.36° Standard Type AS46 - MCS14 0.1969 in.
(5 mm)
17.7 lb-in
(2.0 N•m)
AS66
AS69
- MCS30 0.315 in.
(8 mm)
110 lb-in
(12.5 N•m)
AS98
AS911
- MCS30 0.5512 in.
(14 mm)
Taper Hobbed Gear (TH) AS46-T_ 3.6, 7.2, 10 MCS20 0.2362 in.
(6 mm)
44 lb-in
(5.0 N•m)
20, 30 MCS30 110 lb-in
(12.5 N•m)
AS66-T_ 3.6, 7.2 MCS30 0.315 in.
(8 mm)
110 lb-in
(12.5 N•m)
10, 20, 30 MCS40 150 lb-in
(17.0 N•m)
AS98-T_ 3.6, 7.2, 10, 20, 30 MCS55 0.4724 in.
(12 mm)
530 lb-in
(60.0 N•m)
Planetary Gear (PN) AS46-N_ 7.2, 10 MCS30 0.3937 in.
(10 mm)
110 lb-in
(12.5 N•m)
AS66-N_ 5, 7.2 MCS40 0.4724 in.
(12 mm)
150 lb-in
(17.0 N•m)
10, 25, 36, 50 MCS55 530 lb-in
(60.0 N•m)
AS98-N_ 5, 7.2, 10, 20, 36, 50 MCS65 0.7087 in.
(18 mm)
1410 lb-in
(160 N•m)
Harmonic Gear (HG) AS46-H_ 50, 100 MCS40 0.3937 in.
(10 mm)
150 lb-in
(17.0 N•m)
AS66-H_ 50, 100 MCS55 0.4724 in.
(12 mm)
530 lb-in
(60.0 N•m)
AS98-H_ 50, 100 MCS65 0.7087 in.
(18 mm)
1410 lb-in
(160 N•m)

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

Product Number Code


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