According to relevant estimates, with an annual growth rate of 10%-15%, by 2010, China's annual output of automobiles will reach 7.5 million to 8 million, of which 50%, that is, more than 4 million cars, 1.7 million buses, 1.8 million trucks, and about 12 million motorcycles. By 2010, the number of cars will be about 50 million, and the number of motorcycles will be about 100 million. By then, the annual output and ownership of automobiles in China will be in the forefront of the world. Therefore, the market demand for bearings supporting the main engine of automobiles and motorcycles and maintenance will have significant growth.

The automobile industry belongs to a relatively large comprehensive industry, its connotation includes: metallurgy, casting, material molding, metal processing, automation control, electronics, spraying and other industries, industrial scale, involved in industries are difficult to compare with other industries, and the equipment used in the industry will be a wide variety.

The bearings installed on the car are also very many kinds, such as automobile hub bearings, automobile air conditioning compressor electromagnetic clutch bearings, automobile drive shaft center support bearings, automobile engine tensioner bearings, automobile clutch separation bearings, automobile water pump shaft bearings.