Patent ID: 6831384
Filing Date: 2004-12-14
Classification: F16C,H02K

Abstract:
A magnetic bearing comprising:at least one inner bearing part; at least one outer bearing part substantially surrounding said at least one inner bearing part, said at least one inner and outer bearing parts rotatable relative to each other about an axis of rotation; a plurality of permanent magnets arranged axially one behind another in relation to the axis of rotation; a plurality of flux guiding elements arranged axially in relation to the axis of rotation between at least two adjacent permanent magnets and substantially filling an interspace between the at least two adjacent permanent magnets to guide a magnetic flux of said permanent magnets on a first one of said inner and outer bearing parts; at least one coupling means on a second one of said inner and outer bearing parts for interacting with said permanent magnets to form a bearing gap around the axis of rotation; radial holding elements, each formed by a non-magnetic material and associated with a corresponding permanent magnet, to hold the corresponding permanent magnet, on a side facing the bearing gap, each permanent magnet being set back radially with respect to at least one corresponding flux guiding element of the plurality of flux guiding element, in a radial direction; and a common radial holding element extending over the radial holding elements, each associated with said corresponding permanent magnet, and over said flux guiding elements.