Tire Coupling Spacer Element Angular Misalignment 3 Degrees Coupling Size WE20 Horsepower @ 100 RPM 3.7 hp Maximum Speed 4 800 RPM Maximum Torque 2 300 in-lb Maximum Hub Spacing 0.25 in Tire Outside Diameter 7.36 in Element Overall Length 11.17 in Parallel Misalignment 0.09375 in Element Type Spacer Center Element Weight 6 lb Application Blowers Compressors Fans Generators Numerous Industrial Applications Including Pumps Motors Element Flex Material Polyether Urethane