Precision bearings is the future direction of miniature bearings
Automotive market in recent years has maintained a rapid growth trend, from car ownership per capital household income, per capital car ownership and other factors to consider, car is still in the incremental market, not into the stock market. According to the Institute for Prospective industry released "Chinese bearing manufacturing industry sales demand forecasts 2015-2020 and upgrade analysis report" shows that the automotive industry is still holding period of high growth, future growth of not less than 15%.
With the electric car downsizing process, the corresponding components of products is increasing. Therefore, car-related components market will continue to expand. Automotive bearings development, will focus on safety, improve efficiency and reduce harmful substances. Car radiator cooling fan motor, wiper motor, exhaust gas recirculation system (EGR) valve frame and anti-lock braking system (ABS) as the representative of the pump motor and the application system is the main application field of miniature bearings.
Especially ABS bearing, in the 1980s, only for advanced vehicles, after which advance to the miniaturization and the popularity of direction as an important product safety measures, from the mid-1990s began to expand the use. At present, the development of the spindle to the versatility of the car, security direction, not only for the use of ABS brakes intermittently control, but also with sensors to monitor driving conditions even move to a different drive wheel braking force all around, from the overall control safe driving. The future development trend of miniature bearings such systems are upgraded ABS system, different manufacturers have different product names such as ESC, EPS, VSC, and so on.
Development of the ABS system is a typical example of the development of automotive-related products. Miniature bearings future with the increasing safety and environmental requirements, will derive many new applications. Bearing market targeting hybrid and electric vehicles will try to create a new type of automobile-related products. In this development, the field of miniature bearings involved will continue to expand, it will continue to improve its accuracy, with the continuous development of China's auto industry, a huge space for development of domestic enterprises.
Appliances with miniature bearings represent the product is vacuum cleaners and air conditioners motor bearings, the main motor is 22mm outside diameter. Vacuum cleaner is characterized by its number of revolutions of the motor up to 4-5 million revolutions / min, and 100 000 turn / min motor has also been used to market a large number of sales of vacuum cleaners. The air conditioner is a long time in the device for indoor use, low noise high demands. Currently there is a problem, the power lead to galvanic corrosion between the inner and outer ring of the bearing, the solution is to use only non-conductive ceramic balls, which will enhance the appliance using a micro-bearing technology.