THRUST DISC, MAGNETIC BEARING AND APPARATUS

摘要

The invention concerns a thrust disc (10) for a magnetic bearing (1), wherein the thrust disc (10) comprises: a body (20) which is adapted to be mounted on a shaft (2) and which has a first offset yield strength (Rp20) and a first magnetic permeability (µ20), and at least one flange (50, 60) which is fixed to the body (20) in a position where it can interact with a thrust stator (5 ; 6) in order to form a magnetic bearing (1) and which has a second offset yield strength (Rp50 ; Rp60) and a second magnetic permeability (µ50 ; µ60) ; wherein the first offset yield strength (Rp20) is higher than the second offset yield strength (Rp50 ; Rp60) ; and wherein the first magnetic permeability (p20) is smaller than the second magnetic permeability (p50 ; p60). The invention also concerns a magnetic bearing (1) equipped with such a thrust disc (10). The invention also concerns an apparatus equipped with such a magnetic bearing (1).