BEARING ARRANGEMENT FOR LINEAR SLIDE

摘要

Bearing arrangement for a linear slide 1 moveable in a first direction x with respect to a base plate 6. Each magnetic bearing unit 10 comprises a permanent magnet 13 and an electromagnet 12 and co-operates with a rail 7 of magnetically conducting material extending in the first direction x. The magnetic bearing unit 10 comprises a double C-yoke configuration, the electromagnet being formed by the double C-yoke 11. Each C-yoke 11 is provided with a coil 12, and the permanent magnet 13 is positioned between the C-yokes 11. The rail 7 co-operates with the magnetic bearing unit 10 and can be placed between the end-faces of the C-yokes 11. The bearing arrangement further comprises at least two further electromagnets 20 co­operating with the at least one rail 7.