The Influence of NTN Imported Bearings on the Production of Domestic Machinery Kits

The market is conveying a message to us: NTN imported bearing technology is the productivity, the source of power for the development of domestic accessories, and it is also a weapon for "successful success"! As the "barometer" of the construction machinery accessories industry, the mature technology of my country's loader accessories shows a clear weakness. "Contributing to social improvement through commercial activities" is the goal that Mitsubishi Heavy Industries has always pursued.

At the IGAS2007 (International Printing Machinery Expo) held recently, the company exhibited a series of new products and new technologies, and wanted to take this to improve the productivity and printing quality of the printing press. There is an urgent need for both internal and external training to embark on the journey of promotion; the core technical bottlenecks of excavator accessories are choked in the throat, hydrostatic transmission technology and load sensing adjustment skills; it is necessary to cultivate strong strength and achieve economic planning after asset reorganization or mergers and acquisitions A large-scale accessory enterprise group; to break the hydraulic components of hydraulic excavators, especially variable plunger pumps, motors and matching reducers, as well as chip or integral multi-way valves, high-pressure oil cylinders and other core technologies; break the expectations of small digging become the way to go. The oil film bearing series manufactured by Taizhong basically covers all kinds of large-scale oil film bearings in the world. The domestic market has a market share of more than 80% and is exported to 9 countries such as Germany and Japan. It can be supplied to any steel mill in the world. Various types of oil film bearings.

Take loader and excavator accessories, for example. Although NTN imported bearings for domestic loader engines, it is necessary to break the cutting-edge technologies such as loader transmission microcomputer integration control, full hydraulic drive; only in this way, my country's construction machinery accessories industry can present more well-known brand enterprises, can be in the Invincible in the market competition! The development of core accessories such as transmissions and drive axles is relatively mature, and technical barriers have been broken, and major accessories manufacturers have their own patented products. However, this is just a "flying on the water" on the micro level. From the micro level, the pressure of the hydraulic system of the loader accessories does not meet the international standard, there is no corresponding dispatch valve, and the reliability of the hydraulic pump is not optimistic; the 3t in the transmission system is not optimistic. In the following, transmissions and axles above 6t are still far behind, especially on mainframes, which are basically blank; there is still no basic solution to the high-level series of electrical component failure rates. As the “soft underbelly” of domestic excavators, the hydraulic system is monopolized by foreign brands such as Kawasaki and Komatsu for the quality control skills of the main valve. The variable systems and various components required for supporting small excavators within 30MPa and under 10t are all imported.