X-ray tube rotating anode assembly bearing
US8240923B2 · kind B2 · utility
2Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2008 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Apr 9, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2235/1066
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A thermally stable tribological coating is applied to the outer surface of a moveable bearing outer ring in a bearing assembly for an x-ray tube rotating anode and/or the surface of a housing bore of the X-ray tube rotating anode which receives the bearing assembly. If the tribological coating is applied to the outer surface of the bearing outer ring, it is made of a material that is metallurgically incompatible with the material from which the housing containing the bearing is made. The coating includes one or more of the following: Cr, W, Mo, or Nb, or nitrides, carbides, oxides, or sulfides of Cr, W, Mo, or Nb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.