Fan bearing technology status

Currently, the domestic development and production of main gearbox bearing fan bearings and motor bearings, but still below standard performance and longevity. Thus, about 90% of the gearbox bearings and motor bearings are still dependent on imports. Yaw bearing assembly and the fan shaft bearing assembly is still being developed, in addition to domestic Luo axis, ZWZ other large state-owned enterprises have a small trial, few manufacturers, basically a domestic blank.
Developed in the fan bearings, the main technical difficulty is required to achieve long-life sealing structure and greases, raceway special processing methods and heat treatment technology, special cage design and manufacturing methods. Domestic current level of technology, compared with foreign advanced level there is a big gap, but in recent years some of our research units in these areas have made some groundbreaking research, which must be accelerated process of localization of fan bearingsGenerator bearings and cylindrical roller bearings deep groove ball taper roller bearing  By these two bearing structure design, processing methods to improve the production process controls and related components cleanliness preferable to lower the vibration noise of the bearing, the bearing