Magnetic bearing for use in machine i.e. electrical machine, has superconducting material whose part is arranged between pairs of axially and radially magnetized secondary magnets provided for axially and radially magnetized primary magnets

摘要

The bearing (3) has two bearing parts (7, 8) movable relative to each other around a rotation axis (4) based on magnetic forces acting between the parts. The part (7) has primary magnets (9, 9') that are designed as permanent magnets and arranged in form of a halbach array so that the magnets (9) are radially and axially magnetized. The part (8) has pairs of axially and radially magnetized secondary magnets (10, 10') that are provided for the respective axially and radially magnetized primary magnets, and a part of a superconducting material (11) is arranged between the magnets (10, 10'). An independent claim is also included for an electrical machine having two magnet bearings.