Bearing cage with antenna and method for detecting failure of a bearing cage
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United States of America Patent
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Jun 5, 2018
Issued Date -
Apr 13, 2017
app pub date -
Sep 28, 2016
filing date -
Sep 30, 2015
priority date (Note) -
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Abstract
The invention relates to a bearing cage including a bearing cage main body made of a polymer material and having pockets for receiving at least one row of rolling elements of a bearing. The cage is provided with a passive resonant circuit including an antenna coil attached to the cage main body. It is proposed that the antenna coil is formed as a conductive layer directly attached to the cage material of the bearing cage main body and is designed so as to have a breaking point less than or equal to a breaking point of the cage material. Thus, a rupture in the cage main body ruptures the antenna coil, changing the resonance behavior of the passive resonant circuit.
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