Oil Impregnated Spider Insert Coupling Size FC20 Outside Diameter 2 in System of Measurement Inch Maximum Speed 1 150 RPM Horsepower @ 100 RPM 1.6 hp Spider Material Bost-Bronz Maximum Torque 1 000 in-lb Parallel Misalignment 0.001 in Angular Misalignment 0.5 Degrees Color Bronze Compatible Hub Manufacturer Part Number FC20 Fail Safe Yes For Misalignment Type Angular Parallel Horsepower @ RPM 18.2 hp @ 1150 RPM Maximum Operating Temperature 250 Degrees F