Keyless Bushing Flange Type Not Applicable For Bore Diameter 1 in Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 1 31/32 in Overall Width 1.024 in System of Measurement Inch Finish Oil Dipped Hub Contact Pressure 31 812.698 psi Maximum Transmitted Torque 28 ft-lb Outside Diameter Tolerance +0/-.002 in