Bearing
Abstract
Abstract 1,084,755. Bearings. ROLLS-ROYCE Ltd. June 7, 1966 [July 19, 1965], No. 30702/65. Heading F2A. A bearing cage 22 comprises pockets 23 in which rolling elements are disposed, and an insert 24 of or including solid lubricant in each pocket and surrounding the respective element. In Fig. 2 solid lubricant insert 24 with a chamfered surface engaging a flange on the steel cage is bonded in position. The insert has a surface 27 conforming with the inner raceway. In Fig. 5 (not shown) the insert comprises a steel sleeve (30) with a honeycomb liner (31) filled with solid lubricant. In Figs. 6 and 7 (not shown), inserts have axial flanges. In Figs. 8, 9 (not shown), a porous solid lubricant insert (46) is impregnated with oil, and an oil reservoir (56) communicates with the cage. The solid lubricant is a metal, e.g. bronze or molybdenum, a metal salt, e.g. alumina, an alloy, a ceramic, or a synthetic resin, e.g. PTFE.
Inventors
- 👤 Davies William John
- 👤 Smith Colin Frederick
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |