Tire Coupling Element Angular Misalignment 3 Degrees Coupling Size WE50 Horsepower @ 100 RPM 12 hp Maximum Speed 4 200 RPM Maximum Torque 7 650 in-lb Maximum Hub Spacing 0.25 in Tire Outside Diameter 11.34 in Element Overall Length 9.21 in Parallel Misalignment 0.09375 in Element Type Standard Center Element Weight 9 lb Application Blowers Compressors Fans Generators Numerous Industrial Applications Including Pumps Motors Element Flex Material Polyether Urethane