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1/4" X 1/2" Oldham Coupling


Ruland 1/4" X 1/2" Clamp Style Oldham Coupling

Oldham couplings are ideal for stepper motor applications.  The balanced split hub and disc design allows for a large parallel misalignment while maintaining zero backlash performance.

The acetal disk is replaceable for overtorque protection of machine components.



Outside Diameter

1.00 in

Disc Material


Interchangeable Disc


Overall Coupling Length

1.25 in

Shaft Penetration

0.467 in

Input Bore Diameter

0.25 in

Output Bore Diameter

0.50 in

Clamp Set Screw

M 3

Rated Torque

672 oz-in

Static Break Torque

2688 oz-in

Torsional Stiffness

0.033 deg/lb-in

Max Angular Misalignment

0.5 deg

Max Parallel Misalignment

0.008 in

Max Axial Motion Misalignment

0.004 in

Recommended for use with the following stepper motors:

S23HT100-S, S23HT100-P, S23HT125-S, S23HT125-P, S23HT140-S,S23HT175-S, S23HT185-S, S23HT185-P, S23HT260-S


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