Wind turbine generator and rolling bearing for wing turbine...

F - Mech Eng,Light,Heat,Weapons – 16 – C

Patent

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F16C 19/55 (2006.01) F03D 11/00 (2006.01) F16C 41/00 (2006.01)

Patent

CA 2737396

In order to provide a rolling bearing for a wind turbine and a wind turbine which can prevent the deterioration of the lubrication condition even when the rolling bearing receives high load while the inner ring and the outer ring are kept still relative to each other, the wind turbine generator (1) of the present invention for supporting a first member (4) and a second member (2) which rotates relative to the first member, comprises an inner ring (40) to which the first member is fixed; an outer ring (42) to which the second member is fixed; a center ring (50) which is arranged between the inner ring and the outer ring and can rotate independently of the inner ring and the outer ring; rolling elements (44) which are provided between the bearing rings in such a manner that the rolling elements can freely roll; and a center ring drive unit for rotating the center ring (50).

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