Keyless Bushing Flange Type Not Applicable For Bore Diameter 1 1/4 in Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 2 23/64 in Overall Width 1.358 in System of Measurement Inch Finish Oil Dipped Hub Contact Pressure 31 781.463 psi Maximum Transmitted Torque 44 ft-lb Outside Diameter Tolerance +0/-.002 in