Keyless Bushing Flange Type Flanged For Bore Diameter 2 11/16 in Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 4 21/64 in Overall Width 1.988 in System of Measurement Inch Finish Oil Dipped Hub Contact Pressure 31 758.621 psi Maximum Transmitted Torque 284 ft-lb Outside Diameter Tolerance +0/-.002 in