Product Details: The Webb 3/4"-16 Serrated Stud Steel/Aluminum Wheel Hub is the perfect solution for your wheel hub needs. This hub features a 11.25 stud bolt circle and a 3/4"-16 serrated stud for maximum strength and durability. The pre-set clearance or preload provides the units with the required stiffness to accommodate tilting forces under specified loading conditions. This hub is maintenance free and greased for life, ensuring a long-lasting and reliable performance. The precise contact angle results in a very compact unit which can accommodate both axial and radial loads. FleetPride is your First Click in Heavy Duty®.