Sleeve Coupling Insert Coupling Size 11 Maximum Speed 3 600 RPM Maximum Torque 5 890 in-lb Outside Diameter 8 3/16 in Insert Construction - New 2-Piece with Retaining Ring Angular Misalignment 1 Degrees Horsepower @ 100 RPM 9.4 hp Insert Material EPDM Insert Width 4 in Parallel Misalignment 0.032 in System of Measurement Inch Torsional Stiffness 17 300 in-lb/rad Application Blowers Compressors Conveyors Mixers Motors Pumps Maximum Operating Temperature 275 Degrees F