BEARING CAGE WITH ANTENNA AND METHOD OF DETECTING FAILURE OF A BEARING CAGE

摘要

The present invention relates to a rolling cage (51) comprising a rolling cage main body (51a) made of a polymeric material and comprising pockets (55) for receiving at least one row of rolling elements a roll. The cage is provided with a passive resonance circuit including an antenna coil (54a) attached to the cage main body (51a). It is disclosed that the antenna coil (54a) takes the form of a conductive layer directly attached to the cage material of the roll cage main body (51a) and designed to have a lower break point or equal to a breaking point of the cage material. A break in the main body of the cage thus breaks the antenna coil (54a), changing the resonance behavior of the passive resonance circuit.