Keyless Bushing, Flange Type Not Applicable, For Bore Diameter 5/8 in, Keyless Bushing Type Single Nut Locking Assembly, Material Corrosion- Steel, Outside Diameter 1 in, Overall Width 1.125 in, System of Measurement Inch, Hub Contact Pressure 1,800 psi, Maximum Transmitted Torque 38 ft-lb WARNING: This product can expose you to chemicals including Chromium (hexavalent compounds), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. -