In recent years, China's bearing development has continued to progress, and it has gradually formed industrialization. At present, China's bearing market is about 10% in China, and its sales volume ranks third in the world. However, compared with the world's bearing industry powerhouse, there is still a certain gap in China's bearings. The main performance is the low proportion of high-tech, high-precision, high value-added products, and the stability of the products needs to be further improved and improved. Let us take a look at the difference between domestic and imported bearings today! 1. Bearing accuracy: The dimensional deviation and rotation accuracy of domestically produced bearings are very close to imported bearings. However, there is still a certain gap between the SKF bearings and the dispersion. Foreign countries have already begun to study and apply such fine rotation accuracy indicators as "non-repeatable beating", and China's research in this area is still blank. 2. In terms of vibration, noise and noise, Japan has introduced silent and ultra-quiet bearings, and the vibration extremes of Chinese bearings are generally more than 10dB apart from Japanese bearings. 3. In terms of life and reliability, taking deep groove ball bearings as an example, the life of foreign famous brand products is generally more than 8 times of the calculated life (up to 30 times or more), and the reliability is 98% or more (or pursue with the host, etc.) Lifetime), while the life of Chinese bearings is generally only 3 to 5 times the calculated life, and the reliability is about 96%. 4. In terms of high-speed performance, the DmN value of foreign famous brand products is 4 times 106 mm r/min, while the Chinese bearing is only 2 times 106 mm r/min. Although domestic bearings have many gaps with imported bearings, after the Chinese people have been continually affirmed that they have developed more high-quality bearing products, many excellent bearing companies will be born. In December 2013, “Yu Rabbit†successfully landed on the moon. This is the dream of China for many years, carrying the efforts of many Chinese people. While we are feeling and excited, we must not forget the researchers and enterprises that are silently contributing to the development of national science and technology. We may not know that the successful development and operation of this "Yu Rabbit" relies on our domestic Luoyang. Bearings, not by imported bearings, are of great significance. This shows that the gap between domestic and imported bearings is getting smaller and smaller, domestic technology is getting closer to the international high standard, and even in some technologies is still in a leading position. For some ordinary machinery, the level of the bearing may not be high, but the requirement for the "Yu Rabbit" to jump on the moon is very high, and it needs to withstand the harsh environment of extreme cold and heat, and it must operate flexibly. Domestic bearings are really a big test, but it is gratifying that the domestic bearings are fully qualified and finished very well. Although domestically produced bearings have only been developed for decades, they do not have much advantage over the history of foreign countries for hundreds of years, but they can catch up with such a short period of time. We can only use one idiom to summarize, that is, the waves of the Yangtze River are pushed forward. . Linsn LED Display Control System,Led Display of Linsn Receiving Card,Linsn Receiving Card for Led Screen SHENZHEN YGHQ Optoelectronics Co.,ltd. , https://www.leds-smd.com