The main shaft of a wind turbine must withstand some of the highest forces of any mechanical device. With turbines getting ever larger, this is only likely to increase. Few industrial machines are subject to the variable direction and thrust loads as seen in wind turbine main shafts.
By fitting bearings that match the exact needs of the application, turbine reliability can be improved and bearing service life extended and thereby the levelized cost of energy (LOCE) can be reduced. The wind industry is under enormous pressure to reduce cost per MWh by improving turbine designs, raising performance, increasing reliability – all while reducing maintenance costs.
Wind turbine operators must ensure that their assets remain operational for as long as possible. Turbines often operate under tough conditions – offshore, in cold climates or remote locations – which can limit their performance and reliability. High cost of repairs and long lead times for replacement parts can make energy generation uncompetitive.