Keyless Bushing Flange Type Not Applicable For Bore Diameter 1 13/16 in Keyless Bushing Type Single Nut Locking Assembly Material Steel Outside Diameter 2 7/8 in Overall Width 3.563 in System of Measurement Inch Finish Zinc Plated Hub Contact Pressure 9 348 psi Maximum Transmitted Torque 965 ft-lb Outside Diameter Tolerance +0.003 in