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Wind Turbines

As a clean energy that does not produce carbon dioxide that can cause the greenhouse effect, wind power generation is rapidly spreading in countries around the world.
Large wind turbines (windmills) are giant machines. Many 2MW wind power generation equipment under construction now have windmill blades of about 40 meters long, a rotating shaft height of 60 to 100 meters, and a total weight of no less than 200 tons. Therefore, the bearings used in windmills must also be large, with an inner diameter ranging from 100 mm to 700 mm. Some models require bearings with an inner diameter of nearly 2 meters.