Sleeve Coupling Insert, Coupling Size 6, Maximum Speed 6,000 RPM, Maximum Torque 585 in-lb, Outside Diameter 3 3/4 in, Insert Construction 2-Piece with Retaining Ring, Angular Misalignment 1 Degrees , Horsepower @ 100 RPM 0.93 hp, Insert Material EPDM, Insert Width 1 7/8 in, Parallel Misalignment 0.015 in, System of Measurement Inch, Torsional Stiffness 1,718 in-lb/rad, Application Blowers, Compressors, Conveyors, Mixers, Motors, Pumps, Maximum Operating Temperature 275 Degrees F