Preloaded duplex ball bearing design
US7178987B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2005 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | May 16, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2360/23
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bearing assembly comprising a centrifugal debris trap for removing contamination debris from lubrication fluid prior to lubrication of the bearing assembly components is provided. The centrifugal debris trap comprises an annular groove on an inner race such that with sufficient centrifugal force, contamination debris in the lubrication oil is forced into the groove and held there. Removal of contamination debris from the lubrication oil prevents damage to bearing balls and races of the bearing assembly, thus reducing bearing fatigue. A method for lubricating bearing assembly components using the bearing assembly of the present invention is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.