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US 2014/0112606 A1Published application
Roller bearing for wind turbines
OwnerRyan Greenfield, Martin O'Shea +4inventors
InventorsRyan Greenfield, Martin O'Shea, Antonio Silverio, Daniel M. Brake, Martin E. Lohan, Gregory John Smith
Life of this patent
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Abstract
A self aligning bearing assembly comprising a split inner ring and a split outer ring, and two rows of rolling elements arranged at different contact angles, for supporting a main shaft of a wind turbine.
Claims4
A bearing assembly for supporting a main shaft of a wind turbine comprising:
- a split outer ring comprising;
- a first section having a bearing raceway on an inner radial surface;
- a second section having a bearing raceway on an inner radial surface;
- and
- a plurality of fasteners joining the first and second sections such that a continuous bearing raceway is formed from the first and second section bearing raceways;
- a split inner ring comprising;
- a first section having a bearing raceway on an outer radial surface;
- a second section having a bearing raceway on an outer radial surface;
- and
- a plurality of fasteners joining the first and second sections such that a continuous bearing raceway is formed from the first and second section bearing raceways;
- a first row of rolling elements retained by a first cage;
- a second row of rolling elements retained by a second cage;
- all of the first row of rolling elements having the same length as all of the second row of rolling elements;
- and
- the first row of rolling elements arranged at a different contact angle from the second row of rolling elements
12 more elements
Dependencies are inferred from the claim text.