Guangzhou zhongshan insight into the bearing industry development present situation

Guangzhou zhongshan insight into the bearing industry development present situation according to the state bureau of statistics data, 1416 bearing manufacturing enterprises in our country in 2011 ( Annual sales revenue beyond 20 million yuan) , gross industrial output value of 1932. 1. 1 billion yuan, rose 27. 59%; Achieve sales revenue of 1. 9197 billion yuan, 30 year-on-year growth. 30%; Profit total 125. 2. 3 billion yuan, rose 26. 54%. By 2015, China's bearing production beyond 28 billion, main business income is expected to reach 210 billion yuan, to become the world's bearing consumption and sales base. At present, the Chinese bearing industry mainly face three problems: low consumption concentration, innovation ability is low, low degree of manufacturing technology. One is the industrial concentration is low consumption. In the global sales of $30 billion bearing, global eight multinational companies accounted for 75% 80%. Two companies accounted for 90% of the total number of Germany, Japan's five companies accounted for 90% of the total, a company in the United States accounted for 56% of the total. In China, such as high bearing shaft ten bearing enterprises only 24 of industry sales. 7%, the consumption of top 30 enterprise concentration is only 37. 4%. Secondly, the research and development innovation to low. Thin of the warp and woof of the whole industry of theoretical research, the participation of the international specification thin and little original technology and patent products. At present, we basically is to simulate the design and manufacturing technology, product development ability is still very low, show that although the domestic host matching rate reached 80%, but the high-speed railway, and other important host matching and bearing passenger car maintenance, high-grade cars, computers, air conditioners and advanced rolling mill is imported at all. Third, the low degree of manufacturing technology. Manufacturing technology and equipped with technologies of bearing industry in our country are slow, the numerical control processing speed is low, low degree of automation of grinding. As long as more than 200 automatic thread consumption in China. Advanced heat treatment technology and equipment used to control the bearing life and strong sex is critical, such as controlled atmosphere heating maintenance, double refining, bainite hardening and other low cover rate, many technical problems have not been processed. New bearing steel grades of research and development, the steel quality improved, smooth, cooling, cleaning and grinding tools and other related technology already cannot satisfy the bearing level of product quality and progress of the request. Poor results, low processing ability index, differences, product size discrete processing, the internal quality of products is not stable, thus affecting the accuracy of bearing, performance, and reliable service life. On an article: guangzhou jiangmen bearing factory meticulous planning next bearing parameters: the development history of guangzhou zhaoqing bearing manufacturer mining bearing