Keyless Bushing Flange Type Not Applicable For Bore Diameter 1 5/8 in Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 2 15/16 in Overall Width 1.358 in System of Measurement Inch Finish Oil Dipped Hub Contact Pressure 24 245 psi Maximum Transmitted Torque 1 439 ft-lb