Introduction of wheel hub bearing
The wheel hub bearing is the part that connects the rotating part of the tire or the brake disc (rotating part) and the steering knuckle. The wheel hub bearing is a component used at the axle of the automobile to bear the load and provide precise guidance for the rotation of the wheel hub. The wheel hub bearing bears both the axial load and the radial load, and is an important part of the vehicle's load and rotation.

What is the function of the wheel hub bearing
The main function of the wheel hub bearing is to reduce the friction force for the rotating pair, and also play the role of transmitting force. The wheel hub bearing are subject to very large radial and axial loads. The radial load mainly refers to the vehicle weight, and the axial load mainly refers to the lateral force or lateral impact force of the tire when turning.

Classification of wheel hub bearing
The wheel hub bearing is an important component on the chassis of the car, and its manufacturing accuracy is directly related to the overall quality of the car. According to the different integration methods, wheel hub bearing can be divided into the first generation, the second generation and the third generation. At present, the most widely used is the third-generation wheel hub bearing, which uses the bearing unit to cooperate with the anti-lock brake system (ABS). The inner and outer rings of the bearing unit have flanges, the inner ring is fixed on the drive shaft with bolts through the inner flange, and the outer flange mounts the entire hub bearing together.