Keyless Bushing, Flange Type None, For Bore Diameter 5/8 in, Keyless Bushing Type Single Nut Locking Assembly, Material Steel, Outside Diameter 1 1/2 in, Overall Width 1.5 in, System of Measurement Inch, Finish Zinc Plated, Hub Contact Pressure 36, 807 psi, Maximum Transmitted Torque 169 ft-lb, Outside Diameter Tolerance + 0.003 in