Wheel bearing is a simple device made up of two main components, the bearing itself and the race. The bearing itself consists of a metal housing that is pressed over a row of ball bearings that circle the metal housing. These ball bearings in turn ride on the race, which is a very smooth metal surface. When a wheel is rolling, the action of the ball bearings rolling against the surface of the hub that allows the wheel to spin smoothly.

Method of extending auto wheel bearing using life:

1. The installation is correct, that affects precision, life, performance. And fill the bearing with lubricant after installation.
2. Don't allow strong impact, such as hammer striking, transfer roller pressure.

3. Use the accurate installation tool, avoid to use cloth kind and short fibers.
4. Lubricate the bearing to avoid rust with high quality mineral oil, especially in summer.
5. General inspection, such as the surrounding temperature, vibrate, noise inspection.
6. Keep bearing cleaning from dirt, dust, pollutant, moisture.
7. Bearing should not be ultra cooled.