End bearing has become the principle of the short barrel plate
Bearing with high technical content, it can be used as a measure of a national science and technology, industrial strength, an important criterion. The world's science and technology, industrial power without exception are bearing research and development, manufacturing power. The reason is our major industrial countries rather than an industrial power, an important manifestation of the bearing industry is big but not strong. 2012 China's bearing industry sales reached 142 billion yuan, the production of mainly low-end bearings, and high-end bearings is largely dependent on imports.
End bearings become bucket theory of the "short board"
High reliability for supporting aero engine, high-precision bearing has become China's top aviation engine development difficult climb "Everest." Aviation engine main bearing, for example, the main bearing is one of the key components of aircraft engines. At high speed, high temperature conditions force complex operation, main bearing quality and performance directly affects engine performance, life and reliability. One key indicator is the high reliability of aircraft engines. To ensure reliability, one of the prerequisites is to ensure that within the engine bearings have a long life - the life of the main bearing, military aircraft aviation engine requires more than 3,000 hours, civil aircraft aviation engine requirements are higher, to reach tens of thousands of hours. The aviation engine bearings working environment can use the "purgatory" to describe them not only to million revolutions per minute speed for a long time on high-speed operation, but also suffer various forms of stress squeeze, friction and ultra-high temperature. In addition, the general structural components, even mild crack can ensure safe use - this is called damage tolerance in the professional, and aero-engine main bearing such key drive components of a non-existent damage tolerance that its in the course never allow damage occurs in the form of cracks. While China's current aircraft engine main bearing life is limited, bearing bucket theory has become the "short board."
At present, China is the full development of the key components of aero engine bearing the desired one, this is a no roads other choice. Although civil aircraft Airline engines can be introduced from the West, but the West will not end configured aeroengine bearings single sold to China, in order to prevent the introduction on China is developing aero engine mounted bearings from its competitors, as the military aircraft engine Western embargo on China and even the whole are, let alone where the configuration of the single-end bearings sold to China.
This short board if not resolved, China's aero-engine development will be severely constrained and influence. Although bearing parts, but it's precision, performance, longevity and reliability of the host (such as aviation engine) precision, performance and reliability play a decisive role in bearing technology behind our industrial sector to serious influences.
Bearing giant monopoly had become facts
Founding of New China, "156" project, dedicated both industrialized groundbreaking project which is now bearing Luo Axis Group Axis Group and Kazakhstan. July 13, 2010, Tao, general secretary "to build a world-class R & D base bearing" In the test 察洛 axis. However, a few years ago this enterprise even the danger of being acquired by foreign counterparts. Currently, R & D, manufacturing and sales of high-end bearing is substantially the world's four giants that the US Timken bearings, Japan NSK, Sweden SKF, Schaeffler (FAG) monopoly. 2006, Schaeffler (FAG) has been attempting to Luo Axis Group acquisition, although Luo Axis Group plight Language was a serious loss, but it was seen as a potential future rival Schaeffler Those who wish "annexation."
And another smaller bearing enterprises in Gansu Branch of Hailin Technology Co., Ltd., as China's tapered roller bearings in the field of leading enterprises, with respect Timken is a typical "lightweight" players, the two companies are playing more than a decade of lawsuits. Ten years ago, Gansu Hailin is Timken refers to the so-called dumping complaint in the US courts. In the Chinese market, according to deputy general manager of the company Heke Hong Hailin introduction, the United States Timken bearing annual exports to China in increasing the number of products, while the average prices are decreasing; currently the company's products in China, low price its price in the United States, also lower than the price in other regions, are dumping. US Timken products in Chinese factories also exist low sales phenomenon, formed a peer unfair competition. "China Industry News" Nov. 18, 2013, "Timken involving unfair competition China Association called on its axis and common development," the report referred to: Deputy Secretary-General of China Bearing Industry Association of cattle-hui position, support Hailin Company all legal, legitimate rights behavior, the association has the responsibility and obligation to Hailin Company to provide all possible help. This is the first time the Chinese Association of China axis Hailin survey by the American company to apply for Timken in China regarding the alleged dumping of formal voice. How to curb Chinese bearing industry to high-end bearing areas forward momentum may have become the world bearing the giant containment strategy for China bearing industry a top priority.
Why lean bearing technology talent
Ministry of Industry and Information Technology issued "machine parts, basic manufacturing processes and basic materials industry," second five "development plan" in 2011 (referred to as the "three basic plan"), but it ignores the "three bases" related technologies training of personnel in this area is a typical bearing industry.
Technology behind China's bearing industry is closely related to a serious shortage of technical personnel, technical personnel bearing companies nationwide common phenomenon in the age structure of the fault. Many companies bearing professional and technical personnel is the primary cause of the fault phenomenon fault appears on the university personnel training, because this time the original bearing professional seven or eight engineering colleges to develop so-called "wide caliber professional" in the name of being cut into Comprehensive mechanical engineering, became attached to a mechanical engineering course mesh (courses), sharply reducing the number of bearings graduate.
