Diamond bearing assembly
US5364192A · kind A · utility
326Cited by
9References
17Claims
0Family size
Inventors
Key dates
| Filing date | Oct 28, 1993 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Oct 28, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2352/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention concerns a diamond thrust bearing assembly for a downhole motor. The assembly (10) includes at least one set of opposing bearing rings (20, 22), each of which has an annular support element (24, 30) and a plurality of PCD compacts (48, 62) carried in circumferentially spaced relationship by the support element. The PCD compacts present opposing bearing surfaces (52, 66) with the bearing surfaces (66) of the compacts of one bearing ring in each set being circumferentially longer than the bearing surfaces (52) of the compacts of the other bearing ring of the set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.