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The Global Leading Yaw Bearing, Pitch Bearing Supplier of GE,Vestas and Siemens/Gamesa Hay:U03ZJTM

The bearing used inside the wind turbine is a special kind of bearing, which is affected by the change of temperature, humidity and bearing load, and has higher requirements on sealing performance, lubricating performance, impact resistance, life and reliability.


Therefore, the entry barriers for the wind power bearing industry were relatively high. At that time, China's wind power bearings mainly depended on imports.

In 2006, China's leading wind power bearing manufacturer: ZJTM Bearing Technology Corporation took the lead in selecting the yaw bearing and pitch bearing of wind power bearing as the research object.


In 2007, the ZJTM R&D team successfully developed the four-point ball bearing induction hardening process


In June 2008, the first set of yaw and pitch bearings developed by the company was delivered to China's largest wind power equipment manufacturer: Dongfang Electric, marking that the company's wind power products have been recognized by users and realized the substitution of imports.


At that time, there were only two companies making wind power bearings in the world. ZJTM was the third company and the first company in China!


In December 2008, the first set of yaw ring gear produced by ZJTM for Vestas, the world's largest wind power equipment manufacturer, was delivered for use, marking the company's products entering the international high-end market.


Due to ZJTM's long-term focus on technology research and development, it has obtained more than 1,000 patents related to new processes, leading technology and production capacity, and quickly seized the commanding heights of wind power bearings. Aviation bearing, with international advanced technology level, ranks first in China's market share.


Not only can it meet the needs of Chinese wind power equipment enterprises, but also maintain stable cooperation with the world's leading wind power equipment enterprises such as GE, Vestas, Siemens/Gamesa. While substituting imports, it has also successfully exported to Europe and the United States and other markets.


The greater the fan power, the more difficult the production of the main shaft bearing. At present, the market share of high-power spindle bearings and offshore wind power spindle bearings is almost monopolized by foreign manufacturers.


In October 2021, ZJTM Offshore Wind Power 8 MW Spindle Bearings officially rolled off the production line and made an appearance at the 2021 Beijing International Wind Energy Conference and Exhibition, which has attracted widespread attention both inside and outside the industry, marking the official entry of ZJTM Bearings into the field of wind power spindle bearings.


The slewing bearings produced by ZJTM are also widely used in construction machinery such as excavators, cranes, tower cranes, etc. The excavators have covered 1.5 tons to 75 tons, and the annual production capacity has reached 30,000 sets.


The products are mainly supplied to international customers such as Kobelco Construction Machinery, Caterpillar, Manitowoc and Hitachi Construction Machinery.

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