Active preload control for rolling element bearings
US8469597B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2008 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Sep 9, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C37/007
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for controlling the preload of duplex rolling element bearings systems under various temperatures is described. A spacer or a plurality of spacers may be located adjacent to the rings of the duplex rolling element bearings. The spacer or spacers may be heated or cooled to increase or decrease the axial dimension of the spacer or spacers. Changing the axial dimension of the spacers changes the preload of the duplex rolling element bearing system. The preload of the system may be estimated by receiving an input from a sensor or sensors located on the duplex rolling element bearings system. The sensor may be a temperature sensor or a force transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.