Keyless Bushing Flange Type Not Applicable For Bore Diameter 1 11/16 in Keyless Bushing Type Single Nut Locking Assembly Material Steel Outside Diameter 2 5/8 in Overall Width 3.125 in System of Measurement Inch Finish Zinc Plated Hub Contact Pressure 7 787 psi Maximum Transmitted Torque 588 ft-lb Outside Diameter Tolerance +0.003 in