Keyless Bushing, Flange Type Flanged, For Bore Diameter 25 mm, Keyless Bushing Type Multi-Screw Locking Assembly, Material Steel, Outside Diameter 50 mm, Overall Width 34.5 mm, System of Measurement Metric, Finish Oil Dipped, Hub Contact Pressure 30,271.844 psi, Maximum Transmitted Torque 26 ft-lb, Outside Diameter Tolerance +0/-.002 in