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11月24日星期日
China Construction Machinery economic crisis poses a major challenge
Although China's economic slowdown , China 's construction machinery industry is also facing major challenges, but China is still the world's largest construction machinery market , our future development of this market is still full of confidence. " The world's largest construction machinery giant Caterpillar Group President and Chief Financial Officer Edward ? Leip said recently in Shanghai , the largest in the history of Caterpillar to participate in Shanghai BMW Exhibition , highlighting its commitment to long-term development in China and the Chinese market confidence.
China International Construction Rolling mill bearing Machinery , Building Material Machines , Construction Vehicles and Equipment Expo , namely Shanghai BMW Exhibition (baumaChina) began in 2002 , held once every two years , is designed to help exhibitors develop business in China and Asia markets . According to reports, Caterpillar in the exposition area of over 12,000 square meters exhibition hall , displaying nearly 50 machines are widely used in the Chinese market , a variety of services and technologies , including six new products. To fit China 's "second five" industrial planning , the exhibition is divided into Caterpillar road contact angle measurement construction , irrigation , urban construction , railway construction, quarrying and energy industries , and other six exhibition.
Edward ? Leip said that although China's economy has slowed, but it is built on the basis of previous high-speed development , the next 10 to 15 years is still a great opportunity , "We will not adjust short-term economic downturn in China long-term strategy , " Not long ago, Caterpillar updated the company's China strategy: the Chinese win. To establish itself in China market , Caterpillar focus on creating local supply chain , there are 30 Chinese suppliers , also in Hong Kong to issue renminbi debt. This year, the company also actively interact with customers in China on Weibo , while speeding up the pace into the Chinese countryside.
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