Keyless Bushing, Flange Type Not Applicable, For Bore Diameter 40 mm, Keyless Bushing Type Single Nut Locking Assembly, Material Steel, Outside Diameter 67 mm, Overall Width 79.4 mm, System of Measurement Metric, Finish Zinc Plated, Hub Contact Pressure 8,267 psi, Maximum Transmitted Torque 547 ft-lb, Outside Diameter Tolerance +0.003 in