Keyless Bushing Flange Type Flanged For Bore Diameter 3/4 in Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 3/4 in Overall Width 1.358 in System of Measurement Inch Finish Oil Dipped Hub Contact Pressure 13 418 psi Maximum Transmitted Torque 196 ft-lb Outside Diameter Tolerance +0.002 in