Keyless Bushing Flange Type Not Applicable For Bore Diameter 7/8 in Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 1 27/32 in Overall Width 1.358 in System of Measurement Inch Finish Oil Dipped Hub Contact Pressure 28 376.307 psi Maximum Transmitted Torque 19 ft-lb Outside Diameter Tolerance +0/-.002 in