Due to the particularity of the wind industry, domestic wind power main shaft bearings currently mainly use imported foreign brands, such as FAG, SKF, TIMKEN, NSK and other brands, but delivery times are not very good. It is currently understood that domestic main shaft bearings can be produced. The highest level manufacturers are mainly tile bearings. Compared with imported bearings, the delivery time of tile bearings is better, but the main ones are around 1.5-2MW. The greater the development trend of the wind power market, the more I have not heard of any domestic bearing that can produce market-tested products.
Industrial chain classification: from downstream components to upstream wind farm development, components (blade-gearbox-generator-main bearing-brock-main frame-tower-box transformer-inverter - Hydraulic system - Cooling system - SCADA - other small accessory systems), complete machines, operation and maintenance services, financing services, wind farm development (investors) Representative companies : complete machines (Goldwind, Vision, I am only optimistic about this in China) Two, overseas including GE, Siemens, Vistas, Gamesa, Enercon), main components: blades (LM, Zhongfu, Sinoma), gearbox (Winergy, ZF, NGC), generator (ABB, CSR), main bearing (SKF, Jinma), towers (Tianshun, Taisheng), developers (Longyuan, Guodian, Huaneng, Huadian, CGN, Three Gorges New Energy)