Wheel hubs are the rotating parts at the center of the tire, connected to the wheel rim via spokes, which are the metal components mounted on the axle that support the tire. Scratched wheel hubs can be repaired at auto beauty shops or panel beating and spray centers. The application scope and usage of hub bearing units have been increasingly growing, now evolving to the third generation: The first generation consists of double-row angular contact bearings. The second generation features a flange on the outer raceway for securing the bearing, allowing it to be easily fitted onto the wheel axle and fixed with a nut. The third-generation hub bearing unit integrates the bearing unit with an anti-lock braking system (ABS). The functions of automobile wheel hubs include: Providing a mounting point for the axle, supporting the tire, absorbing external shocks, ensuring contact between the tire and the road surface, and maintaining the vehicle's driving performance. Precautions for daily maintenance of wheel hubs: When the wheel hub is hot, allow it to cool naturally before cleaning. Never use cold water for cleaning, as this may damage aluminum alloy hubs or even deform the brake disc, affecting braking performance. Using cleaners on hot aluminum alloy hubs can cause chemical reactions on the surface, leading to loss of luster and compromising aesthetics. For stubborn tar stains on the hub, if regular cleaners prove ineffective, try using a brush for removal. However, avoid using overly stiff brushes, especially metal ones, to prevent surface damage.
