Tire Coupling Spacer Element Angular Misalignment 3 Degrees Coupling Size WE30 Horsepower @ 100 RPM 5.8 hp Maximum Speed 4 200 RPM Maximum Torque 3 650 in-lb Maximum Hub Spacing 0.25 in Tire Outside Diameter 8.41 in Element Overall Length 11.65 in Parallel Misalignment 0.09375 in Element Type Spacer Center Element Weight 8.8 lb Application Blowers Compressors Fans Generators Numerous Industrial Applications Including Pumps Motors Element Flex Material Polyether Urethane