LYXQL's first 5MW offshore wind turbine main bearing delivered to users for installation

LYXQL can produce slewing ring bearings with outer diameter from 1500mm to 18000mm.

On May 22, 2021, China Huaneng Group Co., Ltd. led the development of China’s first domestically-produced 5MW offshore wind turbine-Huaneng-Haizhuang H171-5MW unit successfully rolled off the production line. The localization rate of the first-level components of the unit reached 100%. The localization rate of the whole machine exceeds 95%. It is the first time to realize the national production of the core and key components of offshore wind turbines, representing the highest technical level of the current localized offshore wind turbines, and marking that my country has mastered the development of all key components of large offshore wind turbines , At the same time, it has the manufacturing capacity of the whole industry chain and fills the domestic gap.

The main bearing of the generator is like the joint of the wind generator, which transmits the power generated by the blades to the generator, which is essential for the reliable power generation of the wind turbine. Previously, it was monopolized by foreign manufacturers, which restricted the rapid development of large-megawatt offshore wind turbines. . Luoyang Xinqianglian Slewing Ring Co., Ltd. provided three-row cylindrical roller main bearings independently developed for this localized offshore wind turbine, breaking the long-term dependence on foreign imports for large-megawatt offshore wind power main bearings and promoting offshore wind power The localization process of the main bearings of the generators of the Great Times.

The main bearing manufactured this time has an outer diameter of 3.2 meters, which is the largest among domestic wind power main bearings, and it is very difficult to design and manufacture. The requirements for design, processing, heat treatment and material properties are very high. The company's project team united with related units to work closely to overcome difficulties, and finally successfully delivered the main bearing to the user.