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.
2013年12月26日星期四
city and district government attaches great importance
Yesterday, Mayor Zhang Xiao Lian , respectively, met in Hangzhou, Huang Mingsheng , Zhaoyong De , Chen Jun , Zhejiang and other business people . Vice Mayor Zhangshao Liang attended the meeting.
During the meeting with the general manager Huang Mingsheng Dawn Holding Group Co. , ZhangXiaoLian said Shuguang Group to invest in Harbin cottage area , attract more enterprises to participate in Harbin implementation of the " Southern Extension" strategy bearing ball has the leading role. He hopes to continue to Harbin Shuguang Group as a key area of ??strategic development , expand machine tool spindle investment in Kazakhstan. City and district authorities will continue to improve services to support the dawn of our projects, and promote their healthy development.
During his meeting with vice president of Zhejiang Jianli Group赵永德, ZhangXiaoLian said on Powerlifting Group's investment in the development of Kazakhstan , city and district government attaches great importance . Harbin will take further measures to provide investors with better production and living environment and more detailed service .
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