What is a hub on a car?

A hub on a car is an automotive component that connects the wheel and brake system to the axle. It is a cylindrical or conical shaped metal structure that is bolted to the wheel assembly. The hub supports the wheel and provides a rotational axis for the tire to spin around. The hub also contains the bearings that allow the wheel to turn smoothly. In addition, the hub is designed to dissipate heat generated by the friction between the brake pads and rotors, which helps prevent brake failure. Some hubs are also equipped with sensors that monitor wheel speed and help control the vehicle's stability and traction. Proper maintenance of the hub is essential for optimal vehicle performance and safety.