Keyless Bushing Flange Type Not Applicable For Bore Diameter 2 1/8 in Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 3 11/32 in Overall Width 2.913 in System of Measurement Inch Finish Oil Dipped Hub Contact Pressure 30 028.317 psi Maximum Transmitted Torque 307 ft-lb Outside Diameter Tolerance +0/-.002 in