Bearings are components that fix and reduce the friction coefficient of loads during mechanical transmission. When other parts move relative to each other on the shaft, it is used to reduce the friction coefficient during power transmission and keep the center of the shaft fixed.
Bearings are an important part of modern mechanical equipment. Its main function is to support the mechanical rotating body to reduce the friction coefficient of mechanical load during the transmission process of the equipment.

Bearings have high precision technology
my country is one of the countries that invented rolling bearings earlier in the world. In ancient Chinese books, the structure of axle bearings has long been recorded. Bearing is an important basic component of various mechanical equipment, its precision, performance, life and reliability play a decisive role in the accuracy, performance, life and reliability of the main engine. Among mechanical products, bearings are high-precision products, which not only require the comprehensive support of mathematics, physics and many other disciplines, but also require material science, heat treatment technology, precision machining and measurement technology, numerical control technology and effective numerical methods and powerful computers. Technology and many other disciplines serve it, so the bearing is a product that represents the country''''s scientific and technological strength.

my country''''s bearing status
The development momentum of my country''''s bearing manufacturing industry is strong, which will have a positive effect on the stability and improvement of the bearing steel market. The demand for a number of high-end bearings has increased significantly, such as aerospace bearings, high-speed precision bearings for machine tool spindles, precision angular contact ball bearings for ball screw supports, high-speed electric spindle bearings, precision bearings for machine tools in the photovoltaic industry, turntable bearings, wind power bearings, Joint bearings for shield machines, rolling mill bearings, high-speed rail bearings, automobile bearings, pulley bearings for cranes, turbocharger bearings, hydrodynamic bearings, etc.
At present, my country''''s bearing industry already has a large economic scale. There are more than 1,400 bearing enterprises in the country, with more than 300,000 employees. In 2011, my country''''s bearing manufacturing industry achieved a total industrial output value of 193.211 billion yuan, a year-on-year increase of 27.59%; sales revenue was 191.097 billion yuan, a year-on-year increase of 30.30%; total profits were 12.523 billion yuan, a year-on-year increase of 26.54%.

Bearing market prospect development
At present, the basic machinery manufacturing industry such as precision bearings has become a key industry during the country''''s "13th Five-Year Plan" period, and strives to make it reach or approach the international advanced level. It is estimated that with the support of the policy, the sales of the high-end bearing casting industry will reach about 222 billion yuan. my country''''s bearing output is expected to exceed 22 billion sets, and the total sales volume is expected to exceed 350 billion yuan, making it the world''''s largest bearing production and sales base.