Skf Magnetic Mechatronics

Skf Magnetic Mechatronics S.a.s.

Matthieu Oliva

Mohamed Bendaoud

Joaquim Da Silva

Luc Baudelocque

Frederic Ponson

Jens Anders

Mohamed Bendadaoud

Joaquim Fernando Fonseca Da Silva

A thrust disc for a magnetic bearing, wherein the thrust disc comprises: a body, which is adapted to be mounted on a shaft and which has a first offset yield strength and a first magnetic permeability, and at least one flange which is fixed to the body in a position where it can interact with a thrust stator in order to form a magnetic bearing and which has a second offset yield strength and a second magnetic permeability; wherein the first offset yield strength is higher than the second offset yield strength; and wherein the first magnetic permeability is smaller than the second magnetic permeability. Additionally, the magnetic bearing can be equipped with such a thrust disc. An apparatus can be equipped with such a magnetic bearing.

Thrust disc, magnetic bearing and apparatus

An assembly includes a rotating shaft supported with respect to a stationary housing by at least one active magnetic bearing presenting a mean radial air gap and at least one auxiliary bearing having first and second coaxially arranged annular surfaces is provided. One of the first and second coaxially arranged annular surfaces defines a clearance (E) with one of the stationary housing and the rotating shaft, the clearance (E) being less than the mean radial air gap and the other of the first and second coaxially arranged annular surfaces being integral with the other one of the stationary housing and the rotating shaft. The auxiliary bearing provides a first ball bearing and a second ball bearing having a misalignment with respect to each other in order to increase the starting torque.

Auxiliary bearing of the ball bearing type for a magnetically suspended rotor system

Growing community of inventors

Vernon, France

Matthieu Oliva