Keyless Bushing Flange Type Not Applicable For Bore Diameter 2 5/8 in Keyless Bushing Type Single Nut Locking Assembly Material Steel Outside Diameter 3 5/8 in Overall Width 4.063 in System of Measurement Inch Finish Zinc Plated Hub Contact Pressure 5 192 psi Maximum Transmitted Torque 1 335 ft-lb Outside Diameter Tolerance +0.003 in