Keyless Bushing Flange Type Not Applicable For Bore Diameter 22 mm Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 47 mm Overall Width 34.5 mm System of Measurement Metric Finish Oil Dipped Hub Contact Pressure 28 666.519 psi Maximum Transmitted Torque 19 ft-lb Outside Diameter Tolerance +0/-.002 in