Hytrel Spider Insert Coupling Size L090 L095 Outside Diameter 2 3/32 in System of Measurement Inch Maximum Speed 9 000 RPM Horsepower @ 100 RPM 0.89 hp Spider Material Hytrel Maximum Torque 401 in-lb Parallel Misalignment 0.015 in Durometer Hardness 55D Angular Misalignment 0.5 Degrees For Minimum Hub Bore 1/4 in Application Cranes Generators Mills Color White Compatible Hub Manufacturer Part Number L090 L095 Fail Safe Yes For Maximum Hub Bore 1 in