Rolling bearing apparatus and detection method for abnormality in rolling bearing
US10119885B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2017 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Jan 28, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2322/39
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rolling bearing apparatus includes a bearing main body having an outer ring that is a fixed ring and an inner ring that is a rotating ring, the outer ring and the inner ring being concentrically provided, and a plurality of rolling elements provided between the outer ring and the inner ring, and a control unit having a vibration detector attached to the outer ring and a calculation unit that calculates a value for vibration of the bearing main body and a rotation speed thereof based on a detection signal from the vibration detector. The calculation unit calculates the rotation speed based on frequency components of vibration obtained from the detection signal and the number of vibrations inherent in the bearing main body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.