Keyless Bushing Flange Type Not Applicable For Bore Diameter 60 mm Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 90 mm Overall Width 32 mm System of Measurement Metric Finish Oil Dipped Hub Contact Pressure 32 787.24 psi Maximum Transmitted Torque 189 ft-lb Outside Diameter Tolerance +0/-0.002 in