BEARING AND WIND TURBINE

摘要

A bearing (200) for adjusting an angle of attack of a rotor blade (220) for a wind turbine comprises a first bearing ring (230) and a second bearing ring (240), wherein the first (230) and the second bearing ring (240) are rotatable relative to one another. As the translator of a linear motor (100), the first bearing ring (230) comprises a plurality (350) of magnetic field sources (110) arranged adjacent to one another along a part of the periphery of said ring, wherein the magnetic field sources (110) are designed such that two respective adjoining magnetic field sources (110) generate a magnetic field with alternating polarity, wherein the plurality (350) of magnetic field sources (110) is arranged in a predetermined angular range (360) relative to a midpoint (310) of the first bearing ring (230) along the periphery thereof, said angular range being directly adjoined by another predetermined angular range (370), in which no magnetic field sources are arranged, and wherein the second bearing ring (240), as a stator of the linear motor (100), comprises a group (190) of at least two coils (170) arranged adjacent to one another along a part of the periphery of said ring.