Patent ID: 9638246
Date: 2017-05-02
CPC Classifications: F16C

Claim:
1. An axial magnetic bearing comprising: a rotating shaft; a rotor stop disc mounted perpendicularly and integral with the rotating shaft; a stator assembly coaxial with a longitudinal axis of the rotating shaft, wherein the stator assembly includes at least one stator element of magnetic material having an inner face parallel to a side of the rotor stop disc and separated from the side of the rotor stop disc by an air gap, wherein the at least one stator element includes two annular coils arranged coaxially with the longitudinal axis of the rotating shaft and housed in two annular notches formed continuously in the magnetic material of the at least one stator element and opening to the side of the rotor stop disc, the two annular notches being separated by an annular tooth, wherein the two annular coils of each stator element are rolled in series and are formed by a single continuous wire, and a bridging recess being cut in the annular tooth for receiving a massive insert part that extends the annular tooth without locally modifying the air gap with the rotor stop disc.