The world wind power bearing generating capacity by the end of 2002, about 31000MW, a 27% increase over the previous year. The wind power generation is no carbon dioxide emissions and clean energy minimum influence on the environment,with the rapid popularization in the world in recent years.
In the field of wind power,wheel bearing improve equipment reliability and reduce the cost of power generation to improve its economy is the main subject. An important component of bearing support of wind power generator, to fully consider the use of the environment, need to the best design of high reliability and high economy coexist.
Bearing is the other parts on the shaft will produce relative motion, used to reduce friction coefficient during power transmission and keep the machine shaft center fixed position, its main function is to support the rotary body, in order to reduce the equipment in the transmission process of mechanical load friction coefficient. According to the motion of the frictional properties of different components, bearings can be divided into two types of rolling bearings and sliding bearings.
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