Magnetic axial bearing for initiating axial force, has bearing part provided with permanent magnet and flux guide elements provided on opposing end faces of magnet, and other elements provided at mutual spacing with respect to each other

摘要

The bearing (22) has a bearing part (24) consisting of a permanent magnet (26) and two flux guide elements which are provided on opposing end faces of the permanent magnet and aligned substantially radial and perpendicular to a rotational axis. A bearing part (30) comprises two flux guide elements provided at mutual spacing with respect to each other and aligned substantially radial and perpendicular to the rotational axis. The bearing parts are made of a ferromagnetic material, and are concentric to the rotational axis. An independent claim is also included for a spindle motor comprising a stationary motor component and a rotatable motor component.