Bearing cage with antenna and method for detecting failure of a bearing cage
US9989097B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2016 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Sep 28, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2326/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.