A car wheel bearing is a crucial component of a vehicle's wheel assembly that enables smooth and efficient rotation of the wheel while driving.
It is a set of steel balls or rollers enclosed in a metal ring called a bearing race STARTER MOTOR.
The bearing is typically mounted within a hub assembly or wheel hub, which connects the wheel to the vehicle's suspension system.
The wheel bearing serves two main functions:
- Load-bearing: It supports the weight of the vehicle and the forces exerted on the wheel while driving, such as acceleration, braking, and cornering forces. The bearing ensures that the wheel can rotate freely and withstand these loads without excessive friction or wear.
- Facilitating rotation: The bearing allows the wheel to rotate smoothly and consistently with minimal resistance. It reduces the friction between the moving parts, enabling the wheel to spin freely and without generating excessive heat.