Keyless Bushing, Flange Type Not Applicable, For Bore Diameter 1/2 in, Keyless Bushing Type Single Nut Locking Assembly, Material Steel, Outside Diameter 7/8 in, Overall Width 1 in, System of Measurement Inch, Finish Oil Dipped, Hub Contact Pressure 17,864 psi, Maximum Transmitted Torque 737 ft-lb, Outside Diameter Tolerance +/-0.0015