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In 2001,ZYS was China’s first company to undertake the project of “Main bearings development of large and medium size wind turbine generator system” from National Ministry of Science and Technology.Due to this project,ZYS acquired the core technology and intellectual property in designing,manufacturing and testing the yaw bearing,pitch bearing,wind leaves bearing,gearbox,and generator bearing in wind turbine system.

We have developed a professional group in wind turbine bearing design,property analyses,manufacturing and testing.Cooperating with Xi'an Jiaotong University,we cultivated China’s first postdoctor in the major of wind power generator bearing and exploited the integrated design and analysis software that can conduct load spectrum analysis of wind turbine generator bearing,stress analysis,design verification of key structural parameters,calculation of effective hardened layer depth and the verification of gear and bolt strength,etc.

ZYS wind turbine generator bearings have reached international advanced level.Up till now,we have applied many national patents in wind turbine generator bearings,such as “Slewing bearing for 1.0MW wind turbine generator”,“Slewing bearing for 1.5MW wind turbine generator”,“Self-lubricating cage for slewing bearing”,“Three-row roller combination slewing bearing with long life and high load capacity”,and “Intelligent wind turbine generator bearing based on object net” etc.In particular,the exclusive patent of “Intelligent wind turbine generator bearing based on object net” can realize remote monitoring,fault warning and trouble shooting to wind turbine generator system.