In today's general trend, the situation in Russia and Ukraine is in dire straits, foreign oil prices and gold prices have skyrocketed, and all walks of life are also more or less affected by the international situation, and the bearing industry is also involved. Foreign bearing manufacturers are more or less affected by the war. Influenced by the situation, what is the current situation of domestic bearing manufacturers? The price of imported bearings has always been higher than that of domestic bearings, and the price of purchasing imported bearings can buy two domestic bearings. Nowadays, the situation abroad is turbulent, and the price of foreign bearings is higher than that of domestic bearing manufacturers. Although we have to admit that the quality of imported bearings is indeed better than that of domestic bearings, the high price has brought pressure to many industries. So where is the gap between domestic bearings and imported bearings? From the perspective of bearing accuracy, the dimensional deviation and rotation accuracy of domestic bearing manufacturers are very close to imported bearings, which is also a huge progress made by my country's bearing industry in recent years. But compared with the leader in bearing technology and manufacturing, SKF shows the difference of domestic bearings, and there is still a certain gap in the degree of dispersion between domestic bearings and top-level bearings. At the same time, some domestic bearing manufacturers do not pay much attention to the research of bearing accuracy scale, which is one of the main reasons why the accuracy of bearings made in China is not as good as that of imported bearings. In order to reduce bias and improve accuracy, foreign researchers have begun to apply fine rotation metrics such as non-repeatable beating. In contrast, in recent years, Chinese scholars have realized the importance of precision to bearings and machines and started this research work. The accuracy of imported bearings is not as good as that of imported bearings, which does not mean that domestic bearings are eliminated. In most applications, domestic bearings can replace the functions of imported bearings, but they cannot be used for some professional equipment with very high precision requirements. Let's talk about vibration noise and abnormal noise. In this regard, Japan is the best in the world. They have introduced ultra-quiet bearings, and the vibration extreme level of Chinese bearings is more than 10dB different from that of Japan. How to understand 10dB? In our opinion, 10dB is a near-quiet environment. The dB is very small and can even be ignored, but this 10dB is still an insurmountable barrier for researchers. In order to be put into service, the most important thing for a business or plant is its lifespan and reliability data. By sorting out the data, we can get that the service life of imported bearings is generally more than 8 times, or even more than 30 times, the calculated life, and the reliability is as high as 98%; the service life of domestic bearings is only 3-5 times the calculated life, and the reliability is only 96%. %. Obviously, we can see that the service life of domestic bearings is shorter than that of imported bearings, the reliability is low, and the cost performance is greatly reduced. This means that domestic bearing manufacturers will lose part of the passenger flow. The low reliability of domestic bearings is closely related to the desire of some domestic bearing manufacturers to succeed and neglect of product inspection. In addition to the above aspects, in terms of high-speed performance, some domestic bearings can only reach about half the speed of imported bearings. The widening of this gap makes the efficiency of the machines less than expected, thus affecting the income, forcing many enterprises to choose imported bearings for factory transfer. The difference in bearings depends not only on technical differences, but also on many factors. From the perspective of raw materials, heat treatment technology, processing equipment and technology, and the level and ability of on-site management and organizational management, there is a big gap between domestic bearing manufacturers and foreign countries. The most important thing is that some domestic bearing manufacturers are not aware of the quality, the control of material composition is not strict enough, and the requirements for material purity are not strict enough. However, China has realized that these problems are constantly improving, and domestic bearings are also shortening the distance from imported bearings. Although imported bearings have advantages, the price is high; although domestic bearings are inferior to imported bearings in terms of quality and performance, with the steady improvement of my country's scientific research strength, our domestic bearing manufacturers are also developing rapidly. What we lack is not technology, not resources, but spirit - the craftsmanship of a great country. As a 37-year-old domestic bearing manufacturer, it has always adhered to the concept of 'honesty, trustworthiness, and soundness', never sloppy in terms of speed, precision, quality control, etc., the raw materials are carefully selected, and every All batches of bearings are quality checked, with high quality, high standards and high requirements, and we are committed to building domestic bearing brands into first-class brands.