With the application of new energy development, as earlier in the development of new wind energy in the grid to occupy an increasingly large proportion. At the same time, more and more manufacturers to develop a variety of wind turbine host, in order to enhance their products competitive on the market, improved design from the drive chain, to consider the different functions of various parts and components have become wind turbine design improvements host of different considerations.

As the main components of wind turbines generator , the choice has been the host bearing manufacturers are most concerned about, whether it is bearing its own design, or the bearing configuration options, have decided to host the wind turbines operating performance and service life.

As the complexity of wind generators operating conditions, the host higher maintenance costs and ensure the reliability of its operation, that is the life of wind turbines, has been troubled by the host manufacturer’s important issues. Bearing applications where efficiency is extremely important to the host. Therefore, based on the complexity of wind turbines, SKF and developed specifically for a special kind of bearing, that is, “Nautilus” bearings – a large contact angle with special double-row tapered roller bearings

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