Sleeve Coupling Insert, Coupling Size 8, Maximum Speed 4,500 RPM, Maximum Torque 1,475 in-lb, Outside Diameter 5 1/16 in, Insert Construction 1-Piece Split, Angular Misalignment 1 Degrees , Horsepower @ 100 RPM 2.3 hp, Insert Material EPDM, Insert Width 2 1/2 in, Parallel Misalignment 0.02 in, System of Measurement Inch, Torsional Stiffness 4,335 in-lb/rad, Application Blowers, Compressors, Conveyors, Mixers, Motors, Pumps, Maximum Operating Temperature 275 Degrees F