At Husum Windenergy, NSK showcased various bearing designs developed for use in wind turbines.
NSK also presented a hybrid bearing with ceramic balls that offers a long life and acts as an electrical insulator.
This function is needed to prevent electricity from passing through the power train and to minimise the associated damage - for example when current peaks or circulating currents (electrical corrosion) occur.
NSK Robust bearings with ceramic balls offer a stressable, long-life, high-precision solution for the machine-tool industry.
NSK has ramped up its production capacities for high-precision ceramic components such as those used in wind turbines.
The company's other exhibits included spherical roller bearings for rotor shafts, bearings for generators and pre-installed bearing units in a sample wind turbine gear shaft.
All of the bearings fulfil the wind power industry's requirements as regards durability and are designed for a service life of over 20 years - even in adverse operating conditions, including highly dynamic wind loads, moisture and temperature fluctuations.
NSK uses high-purity bearing steels for its wind sector products.
Special materials are also used for specific requirements, such as Super-TF steel, which was developed for this application profile.
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