Buna N Spider Insert Coupling Size L070 Outside Diameter 1 23/64 in System of Measurement Inch Maximum Speed 14 000 RPM Horsepower @ 100 RPM 0.07 hp Spider Material Buna-N Maximum Torque 43 in-lb Parallel Misalignment 0.015 in Durometer Hardness 80A Angular Misalignment 1 Degrees Color Black Compatible Hub Manufacturer Part Number L070 Fail Safe Yes For Maximum Hub Bore 3/4 in For Misalignment Type Angular Parallel