Motion Control Coupling Hub Angular Misalignment 0.5 Degrees Axial Motion 0.004 in Coupling Size OCT12 Outside Diameter 0.75 in Over-Standard Parallel Misalignment 0.075 in Parallel Misalignment 0.008 in Coupling Overall Length 1 in Hub Material Aluminum Length through Bore 0.38 in System of Measurement Inch Bore Diameter 1/4 in Maximum Speed 4 500 RPM Bore Type Round Shaft Locking Type Clamp On Keyway Depth Not Applicable Keyway Width Not Applicable