Keyless Bushing Flange Type Not Applicable For Bore Diameter 1 1/8 in Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 2 5/32 in Overall Width 1.811 in System of Measurement Inch Finish Oil Dipped Hub Contact Pressure 37 519.783 psi Maximum Transmitted Torque 59 ft-lb Outside Diameter Tolerance +0/-.002 in