These crucial components in a vehicle's wheel assembly reduce friction and ensure smooth rotation of the wheels. They are typically found in the hub, the part where the wheel and the brake assembly connect to the axle, or in the brake drum or rotor, and they physically bear the vehicle's weight.
The primary purpose of wheel bearings is to allow the wheels to rotate with minimal friction. They spread out the load, allowing the wheel to spin smoothly and easily. Wheel bearings support the vehicle's weight and absorb the load from both axial and radial directions. They are sealed to keep in lubrication and keep out dirt, water, and other contaminants, prolonging their life and maintaining their performance.