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 1.26 in System of Measurement Inch Finish Oil Dipped Hub Contact Pressure 36 447.141 psi Maximum Transmitted Torque 170 ft-lb Outside Diameter Tolerance +0/-.002 in