| abstract |
【Task】 Short life due to high load, surface damage due to sliding caused by light load, wear on the collar part, and prevention of wear at the collar part, double row self-aligning roller bearing that can extend the actual life, and spindle support device for wind power generation using the bearing I will provide a. [Solution] A main shaft support device for wind power generation in which a main shaft to which a blade is attached is supported by at least one rolling bearing installed in a bearing housing, wherein the rolling bearing includes an inner ring, an outer ring, and an inner ring and an outer ring. A rolling bearing formed by enclosing grease around the rolling element, the grease including a base oil, a thickener, and inorganic bismuth, The double-row self-aligning roller bearing is blended in an amount of 0.01 to 15% by weight with respect to the entire grease, and is used in the main spindle support device for wind power generation. [Selection] Figure 3 |