Sleeve Coupling Insert Coupling Size 4 Maximum Speed 7 600 RPM Maximum Torque 156 in-lb Outside Diameter 2 5/16 in Insert Construction - New 1-Piece Split Angular Misalignment 1 Degrees Horsepower @ 100 RPM 0.25 hp Insert Material Neoprene Insert Width 1 1/4 in Parallel Misalignment 0.01 in System of Measurement Inch Torsional Stiffness 458 in-lb/rad Application Blowers Compressors Conveyors Mixers Motors Pumps Maximum Operating Temperature 200 Degrees F