Bearing device
US8851758B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2010 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Mar 7, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N2210/14
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bearing device includes: an outer ring having an outer ring raceway groove on its inner circumferential surface; an inner ring having an inner ring raceway groove on its outer circumferential surface; balls arranged between the outer and inner ring raceway grooves; a retainer retaining the balls; and a liquid lubricant supply device supplying oil content of grease to the space between the inner circumferential surface of the outer ring and the outer circumferential surface of the inner ring. The liquid lubricant supply device includes a liquid lubricant passage providing fluid communication between the inner circumferential surface and the outer circumferential surface; and a vibrating device contacting the grease to vibrate the grease to supply a liquid lubricant to the space between the inner circumferential surface and the outer circumferential surface via the liquid lubricant passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.