The Webb 5/16"-18 Inboard 6-Stud Wheel Hub is designed to provide a secure and reliable connection between two components. This hub features a precise contact angle that results in a very compact unit that can accommodate both axial and radial loads. It also features pre-set clearance or preload, providing the units with the required stiffness to accommodate tilting forces under specified loading conditions. This hub is maintenance free and is greased for life, ensuring a long-lasting and reliable connection. FleetPride is your First Click in Heavy Duty®.