Keyless Bushing, Flange Type Flanged, For Bore Diameter 1 in, Keyless Bushing Type Multi-Screw Locking Assembly, Material Steel, Outside Diameter 1 3/4 in, Overall Width 1.346 in, System of Measurement Inch, Finish Zinc Plated, Hub Contact Pressure 9,489 psi, Maximum Transmitted Torque 3,416 ft-lb, Outside Diameter Tolerance +/-0.003