Patent ID: 9523350
Filing Date: 2016-12-20
CPC Classification: F03D,F05B,F16C,Y02E

Claim Text:
1. A wind turbine auxiliary drive system comprising: a motor, a drive pinion, a bearing and a lubrication system, the bearing comprising an outer bearing ring, an inner bearing ring and, between these two bearing rings, one or more rows of rolling elements which allow both bearing rings to rotate relative to each other, the inner bearing ring having an inner side comprising a gear which meshes with the drive pinion, wherein a height of the gear in an axial direction is smaller than the height of the inner bearing ring such that a gearless portion is defined, wherein at least one lubricant inlet and/or at least one lubricant outlet is arranged on the gearless portion, and wherein a supporting arrangement for supporting lubrication components is provided inside the inner bearing ring of the bearing in such a way that it traverses a bearing rotational axis.