Keyless Bushing Flange Type Flanged For Bore Diameter 24 mm Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 1 11/16 in Overall Width 30 mm System of Measurement Metric Finish Oil Dipped Hub Contact Pressure 33 424.354 psi Maximum Transmitted Torque 277 ft-lb Outside Diameter Tolerance +0/-.002 in