Bearing arrangement for wind turbine main shaft

Abstract

A wind turbine main shaft support configuration operable to provide rolling element support between a wind turbine main shaft and a housing about a central rotation axis. The wind turbine main shaft support configuration includes a group of tapered roller bearings supporting the main shaft or the housing for rotation with respect to the other about the central rotation axis. The group of tapered roller bearings includes a first tapered roller bearing and a second tapered roller bearing in a tandem arrangement with the first tapered roller bearing such that effective load centers of both the first and second tapered roller bearings are offset toward a first axial direction. Respective load lines from the first and second tapered roller bearings to the respective effective load centers are non-parallel.

Dependencies are inferred from the claim text.