Urethane Spider Insert Coupling Size L090 L095 Outside Diameter 2 3/32 in System of Measurement Inch Maximum Speed 9 000 RPM Horsepower @ 100 RPM 0.35 hp Spider Material Polyurethane Maximum Torque 216 in-lb Parallel Misalignment 0.015 in Durometer Hardness 90A Angular Misalignment 1 Degrees Application Blowers Compressors Generators Pumps Color Blue Compatible Hub Manufacturer Part Number L090 L095 Fail Safe Yes For Maximum Hub Bore 1 1/8 in