The first in the world! Off the assembly line in Jianxi!

Recently, the world's first 25-megawatt wind power series bearing rolled off the production line in Jianxi, marking that my country has independent R&D and manufacturing capabilities for key components of ultra-large wind turbines.

As my country's major achievement in the world's bearing field, this product was jointly developed by Xiyan Technology and Dongfang Wind Power, breaking the global wind power bearing single machine capacity record.

Main shaft bearings and gearbox bearings are the core components of wind turbines. With the current trend of large-scale wind turbines in the industry, bearings used in ultra-large wind turbines have extremely high requirements for reliability and require difficult R&D and manufacturing technologies. They have been used for a long time. Foreign monopoly has become a pain point and difficulty for the development of domestic wind power industry. The 25-megawatt wind power spindle bearings coming off the assembly line this time include 2 sets of tapered roller bearings, of which the upwind bearing has an outer diameter of 3680 mm, which is the largest single-row tapered roller spindle bearing in the wind power industry; 25-megawatt wind power gearbox bearings Including planet wheel bearings, planet carrier bearings, and high-speed bearings, there are a total of 7 models and 44 sets of bearings. The bearing accuracy reaches P5 level, and some reaches P4 level.

During the research and development process, this series of products applied the independent innovative forward design, precision manufacturing, surface strengthening and online intelligent monitoring technologies of Shaftyan Technology, which effectively enhanced the reliability and stability of the bearings and further realized the core zero-emission status of my country's wind power. Components are autonomously controllable and the industrial chain is secure.

Bearings are the core components of wind turbines, and the power of the bearings directly determines the power of the wind turbine and wind turbines. Currently, the global mainstream wind turbine power is 10 MW. After the 25-megawatt offshore wind turbine is put into use, it can generate about 64.67 kilowatt-hours of electricity per revolution and 26,000 kilowatt-hours per hour. A single unit can output about 104 million kilowatt-hours of clean electricity every year, which can satisfy 58,000 ordinary households for a year. of domestic electricity consumption is of great significance to promoting the realization of "carbon peak and carbon neutrality".

Zhou Yu, chairman of the China Bearing Industry Association, said, "The world's first 25-megawatt wind power spindle bearing and gearbox bearing successfully rolled off the production line, filling the gap in my country's wind power field. It is a major achievement for my country's wind power spindle bearing and gearbox bearing. This breakthrough is also a major achievement that our country has achieved in the world."