Load measuring device for rolling bearing unit and load measuring rolling bearing unit
US7320257B2 · kind B2 · utility
14Cited by
5References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 2004 |
| Grant date | Jan 22, 2008 |
| Priority date | — |
| Expiry date | Sep 1, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2326/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Revolution speeds nca, nib of rolling elements 9a, 9b are sensed by a pair of revolution speed sensors 21a, 21b. Also, a rotational speed ni of a hub 2 is sensed by a rotational speed sensor 15b. A sum “nca+ncb” or a difference “nca−nib” the revolution speeds of rolling elements 9a, 9b in double rows is calculated based on sensed signals of the revolution speed sensors 21a, 21b, and then a ratio “nca+nib/ni” or “nca−ncb/ni” of this sum or difference to the rotational speed ni is calculated. Then, the radial load or the an axial load is calculated based on the ratio “nca+ncb/ni” or “ca−nib/ni”.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.