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Jining Jingyi Bearing Co., Ltd. is a state-owned enterprise Shandong Jining Bearing Factory restructured into a private joint-stock enterprise. Founded in 1970, it is the original professional needle roller bearing manufacturer of the Ministry of Mechanical and Electrical Engineering. The company occupies an area of more than 50,000 square meters, with more than 380 employees, and 40% of which are middle and senior technical personnel. It is a Chinese "craftsman" enterprise specializing in the production of needle roller bearings and precision cylindrical roller bearings. The company has formed a business philosophy of "market-oriented, business-centered, comprehensively stimulating production, technology and quality". It has established a streamlined and efficient enterprise management and control mechanism with clear functions, clear objectives, and quick response, and established and formed a lean bearing management and management model
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Ordinary bearing rings and rolling elements are made of high carbon chromium bearing steel or carburized steel. The data used for the frame mainly include: the surface roughness of stamping steel, nylon, brass and other processing is determined according to the bearing accuracy and bearing size. The higher the accuracy is, the smaller the surface roughness is, the larger the straight diameter is, and the greater the surface roughness is. As for the fine and ordinary, they are returned separately
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