ROTATING MACHINE WITH AT LEAST ONE ACTIVE MAGNETIC BEARING AND AUXILIARY ROLLING BEARINGS Russian patent published in 2018 - IPC F04D29/51 

FIELD: machine building.

SUBSTANCE: disclosed is a rotating machine, comprising a shaft, a housing, a main magnetic bearing connected to the shaft, an auxiliary radial rolling bearing and an auxiliary axial rolling bearing arranged between the shaft and the housing, a first bushing mounted on the shaft and located between the outer surface of the shaft and the inner ring of the auxiliary radial rolling bearing. There is a first radial clearance between the first bushing and the inner ring of the auxiliary radial rolling bearing. Also, the machine comprises a second bushing mounted on the shaft and located between the outer surface of the shaft and the inner ring of the auxiliary axial rolling bearing, wherein a second radial clearance is provided between the second bushing and the inner ring of the auxiliary axial bearing, the second radial clearance being greater than the first radial clearance.

EFFECT: invention is aimed at increasing reliability and reducing maintenance costs of the machine.

12 cl, 2 dwg