The hub bearing is the part that connects the tire (rotating part)/brake disc (rotating part) and the steering knuckle (Knuckle, fixed part). Its main function is to reduce the friction force for the rotating pair, and also play the role of transmitting force. It is subjected to very high radial loads (vehicle weight) and axial loads (lateral forces or side impact forces of the tires when turning).
The difference between the wheel hub bearing, the ball bearing and the tapered roller bearing, mainly lies in whether the shape of the rolling medium (roller) is spherical or conical, unless it is a vehicle with a particularly large load (engineering vehicles and large SUVs, pickups, etc.), generally The wheel hub
bearings of passenger cars are all
ball bearings.
At present, the domestic wheel hub bearing has reached the third generation.
