Bearings, as an indispensable component of industrial products, can be seen everywhere in almost every corner of life, whether it is high-speed rail, airplanes and other large vehicles, or computers, cars and other items that can be seen everywhere in life, they need to be used in manufacturing. A large number of bearings, how many bearings a country can produce each year, is basically the epitome of the country’s industrial strength, and China, as a world industrial power, produces nearly 20 billion sets of bearings every year, ranking third in the world, but although China is a big country in bearings, But it is not a powerful country in bearing manufacturing. In terms of quality, China is still a certain distance from high-end manufacturing powers such as the United States, Japan and Germany.


After decades of development, the dimensional deviation and rotational accuracy of domestic bearings are comparable to those of the most advanced Western products, but in some more core technologies, such as bearing vibration, noise and service life, domestic bearings and Compared with foreign countries, there is still a gap. Today, the vibration limit value of domestic bearings is still about 10 decibels worse than that of Japanese products, and the difference in service life is about 3 times. At the same time, foreign countries have begun to develop “non-repeatable” bearings At that time, the domestic bearing industry was still in a blank in this field.

The backwardness in bearing technology will obviously cause a huge obstacle to China’s entry into the era of Industry 4.0 in the future. After all, bearings are an indispensable component in the manufacture of high-end CNC machine tools. In order to alleviate this situation, China has already planned domestic production as early as 2015 The development route of high-end bearings, according to the plan, China is expected to achieve 90% localization of high-end CNC machine tools and high-speed rail bearings by 2025, and 90% of aircraft bearings by 2030. With less than 3 years left, good news continues to come from the technology of domestic high-end bearings. In addition to the high-end bearing steel produced by Dongyue this time, China is also making breakthroughs in related technologies.

In general, with the continuous breakthrough of domestic high-end bearing technology, China is likely to complete the localization of high-end bearing technology in less than 10 years. In the future, all industrial products made in China will be completely used in China. Heart.

Post time: Apr-25-2022