Motion Control Coupling Hub Angular Misalignment 0.5 Degrees Axial Motion 0.006 in Coupling Size OST26 Outside Diameter 1.625 in Over-Standard Parallel Misalignment 0.163 in Parallel Misalignment 0.01 in Coupling Overall Length 2 in Hub Material Aluminum Length through Bore 0.71 in System of Measurement Inch Bore Diameter 1/2 in Maximum Speed 4 500 RPM Bore Type Round Shaft Locking Type Set Screw Keyway Depth Not Applicable Keyway Width Not Applicable