Liebherr is now also offering the 3-row roller bearing design as a blade bearing. It can be used as an alternative lifetime upgrade for the maintenance and operation (O&M) of older wind turbine models.
This improved solution from Liebherr-Components replaces the traditional 2-row ball slewing rings. According to Liebherr, when used as a blade bearing, the 3-row roller bearings show potential in terms of dimensioning, load absorption, as well as a significantly longer service life.