Powdered and Gaseous Lubricants for Use in Ball Bearings at Temperatures from Room Temperature to 1200°F
Item
- Title
- Powdered and Gaseous Lubricants for Use in Ball Bearings at Temperatures from Room Temperature to 1200°F
- Description
-
A method of approach to the operation of high- speed, high-temperature ball bearings is outlined. The results of bearing operation to speeds of 50,000 rpm and temperatures from room temperature to 1200°F using the methods outlined is presented.
The most successful bearing operation has been attained using powdered lubricants suspended in a gaseous carrier with titanium carbide and Stellite material bearings. Research efforts are still in progress, however, evaluations to date indicate that molybdenum disulfide in a nitrogen atmosphere and a graphite-cadmium oxide mixture in an air environment are capable of functioning as a lubricant in ball bearings of either material over the temperature range from room temperature to 1200°F. Satisfactory bearing operation has been obtained with these lubricants over the temperature range at speeds of 25,000 rpm for periods of two hours or more. Wear during these evaluations appeared to be a function of lubricant flow varying from a build-up condition at flows above 1 gram/min to a wear condition at flows below 0.2 grams/min. Longer periods of operation have also been attained at the temperature extremes of room temperature and 1200°F with both lubricants. Short periods of operation at speeds to 50,000 rpm at both room temperature and 1200°F have also been conducted. - Creator
- Wilson, D. S.
- Format
- 1 online resource (9 pages) : ill.
- Type
- article
- Abstract
-
A method of approach to the operation of high- speed, high-temperature ball bearings is outlined. The results of bearing operation to speeds of 50,000 rpm and temperatures from room temperature to 1200°F using the methods outlined is presented.
The most successful bearing operation has been attained using powdered lubricants suspended in a gaseous carrier with titanium carbide and Stellite material bearings. Research efforts are still in progress, however, evaluations to date indicate that molybdenum disulfide in a nitrogen atmosphere and a graphite-cadmium oxide mixture in an air environment are capable of functioning as a lubricant in ball bearings of either material over the temperature range from room temperature to 1200°F. Satisfactory bearing operation has been obtained with these lubricants over the temperature range at speeds of 25,000 rpm for periods of two hours or more. Wear during these evaluations appeared to be a function of lubricant flow varying from a build-up condition at flows above 1 gram/min to a wear condition at flows below 0.2 grams/min. Longer periods of operation have also been attained at the temperature extremes of room temperature and 1200°F with both lubricants. Short periods of operation at speeds to 50,000 rpm at both room temperature and 1200°F have also been conducted. - Extent
- 9
- Corporate Author
- Stratos Division, Fairchild Engine and Airplane Corporation
- Report Number
- ASD-TDR-62-465 p. 201-209
- Report Availability
- Full text available
- Date
- 1962
- Date Issued
- 1962-05
- Contract
- AF 33(616)-7223
- DoD Project
- 3044
- DoD Task
- 30169
- 30340
- Distribution Classification
- 1
- Distribution Conflict
- No
- Index Abstract
- Contrails only
- Relation
- This paper was published in the Proceedings Of The Air Force-Navy-Industry Propulsion Systems Lubricants Conference held in San Antonio, Texas on 15, 16, and 17 November 1960
- Identifier
- AD0278843
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| Title | Class |
|---|---|
| Proceedings Of The Air Force-Navy-Industry Propulsion Systems Lubricants Conference |