Keyless Bushing Flange Type Not Applicable For Bore Diameter 3 1/2 in Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 5 7/64 in Overall Width 3.543 in System of Measurement Inch Finish Oil Dipped Hub Contact Pressure 31 353.537 psi Maximum Transmitted Torque 1 108 ft-lb Outside Diameter Tolerance +0/-.002 in