Keyless Bushing Flange Type Flanged For Bore Diameter 1 in Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 1 31/32 in Overall Width 1.358 in System of Measurement Inch Finish Oil Dipped Hub Contact Pressure 15 136 psi Maximum Transmitted Torque 313 ft-lb Outside Diameter Tolerance +0.002 in