Sleeve Coupling Insert Coupling Size 9 Maximum Speed 3 750 RPM Maximum Torque 2 340 in-lb Outside Diameter 6 in Insert Construction 2-Piece with Retaining Ring Angular Misalignment 1 Degrees Horsepower @ 100 RPM 3.7 hp Insert Material EPDM Insert Width 3 in Parallel Misalignment 0.025 in System of Measurement Inch Torsional Stiffness 6 875 in-lb/rad Application Blowers Compressors Conveyors Mixers Motors Pumps Maximum Operating Temperature 275 Degrees F