Buna N Spider Insert Coupling Size L075 Outside Diameter 1 47/64 in System of Measurement Inch Maximum Speed 11 000 RPM Horsepower @ 100 RPM 0.14 hp Spider Material Buna-N Maximum Torque 90 in-lb Parallel Misalignment 0.015 in Durometer Hardness 80A Angular Misalignment 1 Degrees Color Black Compatible Hub Manufacturer Part Number L075 Fail Safe Yes For Maximum Hub Bore 7/8 in For Misalignment Type Angular Parallel