Sure-Flex Plus Coupling Size 11 Maximum Speed 3 600 RPM Maximum Torque 18 000 in-lb Outside Diameter 8 3/16 in Insert Construction - New 2-Piece Angular Misalignment 0.25 Degrees Horsepower @ 100 RPM 29 hp Insert Material Hytrel Insert Width 4 in Parallel Misalignment 0.022 in System of Measurement Inch Torsional Stiffness 125 000 in-lb/rad Application Compressors Conveyors Electric Motors Fans/Blowers Mixers Pumps Maximum Operating Temperature 250 Degrees F