Sure-Flex Plus Coupling Size 9 Maximum Speed 3 750 RPM Maximum Torque 7 200 in-lb Outside Diameter 6 in Insert Construction - New 1-Piece Solid Angular Misalignment 0.25 Degrees Horsepower @ 100 RPM 11 hp Insert Material Hytrel Insert Width 3 in Parallel Misalignment 0.017 in System of Measurement Inch Torsional Stiffness 47 500 in-lb/rad Application Compressors Conveyors Electric Motors Fans/Blowers Mixers Pumps Maximum Operating Temperature 250 Degrees F