Keyless Bushing Flange Type Not Applicable For Bore Diameter 85 mm Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 125 mm Overall Width 38 mm System of Measurement Metric Finish Oil Dipped Hub Contact Pressure 35 060.041 psi Maximum Transmitted Torque 486 ft-lb Outside Diameter Tolerance +0/-.002 in