Jaw Coupling Insert Coupling Size L190 Outside Diameter 4 15/32 in System of Measurement Inch Maximum Speed 5 000 RPM Horsepower @ 100 RPM 4.1 hp Spider Material Polyurethane Maximum Torque 2 589 in-lb Parallel Misalignment 0.015 in Durometer Hardness 90A Axial Motion 0.015 in Angular Misalignment 1 Degrees For Minimum Hub Bore 5/8 in Application Close Coupling L-Type Color Blue Compatible Hub Grainger Part Number 29HY60 29HY61 29HY62 29HY63 29HY64 29HY65 29HY66