Rolling bearing unit e.g. rolling element in wind power plant, has component which is provided in region of immediate surroundings to generate magnetic field that causes attraction of iron with force that is greater than weight of iron

摘要

The rolling bearing unit has a component (10) which is provided in the region (12) of immediate surroundings to generate magnetic field. The magnetic field causes attraction of the iron with a force which is greater than the weight of the iron. A roller cage (14) is provided, at which the component is secured. A rolling section (20) is provided with a running surface (22) and a recess (24), in which the component is partially arranged. A magnetic field focus element (26a) is connected to the rolling section to focus the magnetic field at end of the recess. An independent claim is included for wind power plant.