Bearing is the part of the machine that supports the rotary axis and linear motion axis. In machinery to support the rotating body, linear back and forth movement of the role of the body.。 When other parts of the shaft move relative to each other, the parts used to maintain the center position of the shaft and to control the movement are called bearings.

Bearings are widely used and used in huge quantities. A car needs 100 to 150 bearings. Bearings are not only used in cars, but also in airplanes, washing machines, refrigerators, air conditioners, vacuum cleaners, copiers, computers, and even satellites in space. The function of bearings is to “reduce mechanical friction.”

Reducing friction has three major benefits.
1. Improve the working efficiency of the machine. 2. Extend the service life of the machine. 3. Prevent sticking and reduce machine failures.

Bearings can reduce friction, improve transmission efficiency, and help save energy. This is why people often say “bearings are environmentally friendly.” The manufacture of bearings is often inseparable from ultra-precision polishing. As a synthetic process with extremely high technical requirements, ultra-precision polishing must consist of equipment and materials (polishing fluid), neither of which can be missing.