Many companies that have started developing wind turbines have recently begun to realize that the advantages of high-performance ceramic ball bearings, especially the use of ceramic ball bearings, can lift the rotor shaft 30rpm of the wind turbine blades to 2000 rpm to produce more Power. Silicon nitride balls are ideal for improving bearing performance. Compared with steel balls, silicon nitride balls are lighter, more rigid, harder, smoother, corrosion resistant, do not require much lubrication, and have a lower coefficient of thermal expansion. These properties allow the bearings to run faster, work at higher temperatures, and reduce lubrication maintenance. The silicon nitride ball is extremely resistant to wear. The longer bearing life means that the cycle of the wind power plant to replace the bearing greatly extended, the replacement cost is greatly reduced (due to the need to use the lifting gear when the lifting equipment, the estimated cost of each replacement in the 70,000 yuan). This saving is especially true in high-speed generator shaft systems.
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