Motion Control Coupling Hub Angular Misalignment 0.5 Degrees Axial Motion 0.004 in Coupling Size OSC16 Outside Diameter 1 in Over-Standard Parallel Misalignment 0.1 in Parallel Misalignment 0.008 in Coupling Overall Length 1.25 in Hub Material Aluminum Length through Bore 0.39 in System of Measurement Inch Bore Diameter 1/2 in Maximum Speed 4 500 RPM Bore Type Round Keyed Shaft Locking Type Set Screw Keyway Depth 1/16 in Keyway Width 1/8 in Screw Seating Torque 2.2 N-m