Bearing (bearing) is a fixed mechanical machinery. When other parts on the shaft when therelative motion to each other, used to keep the center axis of the movement and control ofparts, from supporting or guiding role of the parts.
Bearing role should be supported, that literal interpretation of the Drawn Cup Needle Roller Bearings shaft is used, but this is only part of its role, its essence is to be able to support radial load to bear, so that itcan only achieve a fixed axis rotation, and control the axial and radial the move. Without bearing the consequences of the motor is not work at all. Because the axis of movement in any direction possible, while the electrical work required for the rotation axis only.Theoretically speaking, the role of transmission can not be achieved, not only that, Slewing Ring Bearings also affect the transmission, in order to reduce the impact of high-speed shaft bearingsmust be lubricated to achieve good, and some have been lubricated bearing itself, called the pre-lubricated bearings, and most of the bearings must be oil, the load at high speeds, due to the friction will not only increase energy consumption, even more frightening is very easy to damage the bearings.
China's bearing industry to the present, already have considerable production scale and high technology, quality level. Bearing a certain size has grown to more than 1,500enterprises, number of employees grow to nearly 80 million people, bearing annual outputfrom 13.8 million units in 1949 to the present more than 20 million units, the cumulative bearing varieties increased from 100 to more than 7000, up more than 28,000specifications. Over the past 10 years, bearing well-known foreign companies (such asSKF, FAG, NSK, NBM, KOYO, TIMKEN, TORRINGTON, etc.) have set up factories inChina's investment on China's level of technology to improve the bearing design,production technology and production management of the specification, production equipment level of modernization, product quality and performance improvement has played a significant role in promoting.
