Keyless Bushing Flange Type Not Applicable For Bore Diameter 2 3/8 in Keyless Bushing Type Single Nut Locking Assembly Material Steel Outside Diameter 3 3/8 in Overall Width 3.875 in System of Measurement Inch Finish Zinc Plated Hub Contact Pressure 6 247 psi Maximum Transmitted Torque 1 245 ft-lb Outside Diameter Tolerance +0.003 in