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1/2" X 5/8" High Torque Oldham Coupling


Ruland 1/2" X 5/8" Clamp Style High Torque 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

1.625 in

Disc Material


Interchangeable Disc


Overall Coupling Length

2.00 in

Shaft Penetration

0.710 in

Input Bore Diameter

0.50 in

Output Bore Diameter

0.625 in

Clamp Set Screw

M 4

Rated Torque

2080 oz-in

Static Break Torque

7680 oz-in

Torsional Stiffness

0.008 deg/lb-in

Max Angular Misalignment

0.5 deg

Max Parallel Misalignment

0.010 in

Max Axial Motion Misalignment

0.006 in

Recommended for use with the following stepper motors:

S34HT450-S, S34HT450-P, S34HT630-S, S34HT630-P, S34HT1200-S,S34HT1200-P, S23HT1700-P


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