Keyless Bushing Flange Type Flanged For Bore Diameter 1 1/16 in Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 2 in Overall Width 1.472 in System of Measurement Inch Finish Zinc Plated Hub Contact Pressure 8 708 psi Maximum Transmitted Torque 4 363 ft-lb Outside Diameter Tolerance +/-0.003