Keyless Bushing Flange Type Flanged For Bore Diameter 1 15/16 in Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 2 7/8 in Overall Width 2.472 in System of Measurement Inch Finish Zinc Plated Hub Contact Pressure 4 038 psi Maximum Transmitted Torque 10 603 ft-lb Outside Diameter Tolerance +/-0.003