ACTIVE PART OF ELECTRIC MACHINE, RADIAL MAGNETIC BEARING AND METHOD OF MANUFACTURE OF RADIAL MAGNETIC BEARING Russian patent published in 2018 - IPC H02K1/02 H02K1/06 

FIELD: electricity.

SUBSTANCE: active part contains teeth, each of which has a foot and a depth of tooth, open or closed slots placed between the teeth, windings introduced in grooves, surrounding accordingly at least one of the teeth. In this case, the active part has a thickness of the active part, which is greater than the depth of the tooth. The active part, on the basis of the corresponding tooth foot to the limit depth, which is in maximum equal to the depth of tooth, contains the first material with the first magnetic permeability and, starting from the depth limit, the second material with the second magnetic permeability, wherein the first magnetic permeability is greater than the second magnetic permeability. According to the invention, the limit depth is from 20% to 100% of the depth of the tooth.

EFFECT: improvement of magnetic characteristics.

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