Keyless Bushing Flange Type Not Applicable For Bore Diameter 42 mm Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 75 mm Overall Width 62 mm System of Measurement Metric Finish Oil Dipped Hub Contact Pressure 38 842.184 psi Maximum Transmitted Torque 186 ft-lb Outside Diameter Tolerance +0/-.002 in