To shorten the gap between the world powers bearings , bearing manufacturing to improve our manufacturing level , the Chinese government has issued a series of industrial policies to support and encourage domestic enterprises towards the end bearing bearing localization direction. "Long-term Science and Technology Development Plan (2006 - 2020 ) " should be made to focus on the development of major equipment required for the design of key basic parts and components , manufacturing and key technologies Precision bearing for mass production . China's " bearing industry," second five "development plan" put forward , "Twelve Five" period, the bearing industry 's main business grew 11.84 percent average annual production average annual growth of 13.30% , industry profits grew 13.90 percent average annual total goals. This reflects the country fully affirmed the important status and role of the clutch bearings ndustry in the national economy , as well as support for the development of industrial bearings , bearings for the healthy development of the industry provides a good opportunity for development .
According to Mr. Li Shuming Northwest bearing , general manager of introduction, Northwest Bearing developed "2.5MW wind power generation equipment spindle bearings " project, designed to meet the requirements of the user MWT-2500A (2.5MW) direct drive wind turbines. Can not only improve the company's own income , but also effectively promote the local wind power equipment, downstream industrial agglomeration and development in Ningxia , and promote the formation of the wind power industry development and industry chain has far-reaching implications for Ningxia industrial restructuring, transformation of economic growth mode ; company developed the " heavy-duty vehicle nose cone bearing " project, in addition to improving the company's revenue , but also by dump truck with a nose cone bearing development, open -highway heavy-duty dump truck bearings supporting the localization market
Precision bearings according to ISO grading standards are divided into: P0, P6, P5, P4, P2. Rank higher in turn, where P0 is the general accuracy, other grades are precision level. Of course, different classification standards, different types of bearings, their classification method somewhat different, but the meaning is to the. The use of performance requirements of precision bearings rotating body with high runout accuracy, high-speed rotation and small changes in friction and friction.
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