Bearing is not only an important part of modern mechanical equipment, so-called "mechanical joint", but also an important part of our daily necessities, such as bicycles, refrigerators, washing machines and other livelihood products. And there are many kinds of bearings, but no matter what kind of bearings, small vibration, less wear and low heat are the standards of high quality.

The gap between China's high-end bearings and foreign products

In terms of high-end bearings, China still relies on imports from Germany and Japan, two manufacturing powers. It is an open fact that Germany and Japan basically import raw materials from China for high-end processing and then buy back China at a price of 10 times. China's manufacturing industry has no choice. There is no doubt that China is a real manufacturing country in bearings, but it is not up to the standard in fineness. Although the reliability of Chinese bearings has reached about 96%, compared with the reliability of foreign bearings, it has reached more than 98%, and the actual life can reach 30 times of the calculated value, but it is still backward.

Reasons for defects of high-end bearings in China

With the support of the state, the independence rate of large aircraft bearings will also reach 90% by 2030. The technology of manufacturing raw materials for high-end bearings in China has been very mature and perfect. Although the bearing looks very simple in structure, its working environment is under great pressure. The environment in the fine field is even more severe. Because of the extreme movement of objects, it is easy to cause it. Fatigue fall off, so for the manufacturing of material steel requirements are also very strict, and bearing steel purity and uniformity is its main measurement index, material defects is the important reason that China's bearing industry can not keep up with the world's advanced level.