Patent ID: 8072105
Filing Date: 2011-12-06
Classification: D01H,F16C

Abstract:
1. An axial bearing for a spinning rotor rotated at a high rotational speed and mounted free of axial thrust in a bearing interstice of a support disc bearing arrangement of an open-end spinning device, the bearing comprising a static magnetic bearing component and a dynamic magnetic bearing component, the static magnetic bearing component being secured in a bearing housing and having at least two axially polarized permanent magnet rings limited on either side by pole discs, and the dynamic magnetic bearing component being formed by ferromagnetic webs arranged on the rotor shaft of the spinning rotor at the spacing of the pole discs, characterized in that the static magnetic bearing component ( 27 ) is arranged inside a bearing bush ( 30 ) of a plastics material and is secured by a closing lid ( 31 ) of a plastics material and in that the closing lid ( 31 ), on a front side thereof facing the static magnetic bearing component ( 27 ), has a stop journal ( 50 ) forming an axial emergency operation bearing and, on a rear side thereof, has a conically widened fastening lug ( 51 ) which is elastically deformed in the installed state.