method to mount a rolling bearing on a wind turbine shaft and a wind turbine bearing assembly

摘要

The invention regards a method to mount a rolling bearing onto a wind turbine rotor shaft, wherein the bearing presents an outer ring, an inner ring and rolling elements interposed in-between the rings, and wherein the inner ring presents an inner circumferential surface, which surface presents a frusto-conical profile. The rolling bearing is meant to be mounted on a corresponding conical seat on the rotor shaft by the frusto-conical inner circumferential surface. The method comprises the following steps: - pressing a liquid in-between the inner circumferential surface of the inner ring and the conical seat to thereby facilitate the driving up of the rolling bearing on the conical seat, - driving up the rolling bearing on the conical seat by an axial force acting on the rolling bearing, - wherein the liquid is pressed in-between the two surfaces at an axial end portion of the inner circumferential surface. Furthermore, the invention regards a bearing assembly.(Fig. 1)