The shapes of non-standard bearings how to carry out the inspection

Non-standard bearing the exterior of how to carry out the inspection source: bearing | last updated: - 2020 11 - 02 non-standard bearing shape scar how to carry out the inspection 1, all kinds of mechanical equipment, such as torn, scratched, wounded, bumps, etc. , are all can lead to poor bearing installation, wheel load and stress, and lead to a drop in rotation precision and life. 2, rust, black and black dot, after two shortcomings, it is very easy to store water and waste the most development trend is very easy to rust. The rust is caused by poor installation, initial damage, and exhaustion of the pollutants, serious rust bearing damage. 3, all kinds of cracks, such as crack raw material, forging cracks, heat treatment process such as cracking and cutting, the cracks in the bearing after operation in the whole process, will become a source of stress and rapid expansion, lead to split bearing, bearing life and work safety coefficient is dangerous. In fact, in view of the key main use of bearings, bearing factory has the parts for 100% magnetic or radiographic inspection. 4, peeling and scale, these two shortcomings of some fusion with the base metal material is not stable, and its surrounding is usually not the same level with carburizing or lived in poor condition, carbon raw material is very easy to fall, indented or friction coefficient, the service life of bearing and precision is very bad. 5, the ball bearing riveting or welding welding quality, the key to observe the bolt head is deviation, tilt, relaxation, lack of meat, or 'all cut double-fold eyelid, welding welding parts is appropriate, spot welding is too big or too small, with or without welding welding not firm or welding welding stuck over the swivel causes too much. Who read this article also browse: non-standard bearing gradually became important basic components of non-standard bearing bearing is a key of weapons and equipment manufacturing, important basic components, the immediate decision to heavy focus on the characteristics of weapon equipment and server product, quality and credibility, is called the 'heart' of weapons and equipment manufacturing components. After many years, the development trend of bearing industry chain in China already has a large scale, all over the country bearing areas 2010 annual output value is about 130 billion RMB yuan in China, ranks third in the world. Although the scale of development trend in the field of the bearing is already very big, but the vast majority of all centralized in low - and, in the high-end bearing manufacturing industry, in our country compared with capitalist countries still have very big difference. China bearing industry association director Wang Quanqing has also established show that development trend of China's high-end bearing rate couldn't keep up with the development trend of the server rate. For example, in our country has mastered high-speed emu with independent patent technology, but with the facilities of the bearing foundation also rely on imports. At present, China bearing company manufacturing high speed bearing 150 - most only considered 180 km of the train, and European countries high-speed rail train speed 350 - bearing 400 km the requirements of the train, therefore, the present stage of China's speed of 200 km above the bullet train of supporting facilities imported high-speed rail train bearing based on high prices. According to the high-grade bearing out objective facts in our country, 'planning' established, will make full use of national industrial policy correctly guide effect, promote domain access threshold, the boycott of basic construction suitability repeatedly; To include within the bearing industry chain 'sanki' industrial chain of taxation for current policy, the implementation of the important components and raw materials import tax preferential policies; Scientific research to formulate incentive customers choose 'sanki' new product and new technology and new technology of the existing policy.