Tire Coupling Hub Angular Misalignment 4 Degrees Coupling Size WE3 Horsepower @ 100 RPM 0.58 hp Maximum Speed 7 500 RPM Bore Type Round Keyed For Bushing Size Not Applicable Maximum Torque 365 in-lb Keyway Depth 1/8 in Keyway Width 1/4 in Hub Diameter 2.32 in Parallel Misalignment 0.0625 in Bore Diameter 1 1/8 in Screw Thread Size 3/8 In.-16 Set Screw Location Over Keyway System of Measurement Inch Torsional Stiffness 4 710 in-lb/rad Length through Bore 1 1/2 in