Keyless Bushing Flange Type Not Applicable For Bore Diameter 1 1/8 in Keyless Bushing Type Single Nut Locking Assembly Material Steel Outside Diameter 2 in Overall Width 2.25 in System of Measurement Inch Finish Zinc Plated Hub Contact Pressure 18 386 psi Maximum Transmitted Torque 366 ft-lb Outside Diameter Tolerance +0.003 in