Powdered and Gaseous Lubricants for Use in Ball Bearings at Temperatures from Room Temperature to 1200°F
Report Number: ASD-TDR-62-465 p. 201-209
Author(s): Wilson, D. S.
Corporate Author(s): Stratos Division, Fairchild Engine and Airplane Corporation
Date of Publication: 1962-05
Pages: 9
Contract: AF 33(616)-7223
DoD Project: 3044
DoD Task: 30169
Identifier: This paper is part of a conference proceedings. See AD0278843
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.
Author(s): Wilson, D. S.
Corporate Author(s): Stratos Division, Fairchild Engine and Airplane Corporation
Date of Publication: 1962-05
Pages: 9
Contract: AF 33(616)-7223
DoD Project: 3044
DoD Task: 30169
Identifier: This paper is part of a conference proceedings. See AD0278843
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.
Other options for obtaining this report:
Via the Defense Technical Information Center (DTIC): Identifier: This paper is part of a conference proceedings. Access a record for the conference proceedings, and possibly a pdf download of the report, at DTIC Via National Technical Report Library: This report may be available for download from NTRL. Use the Title from this record to locate the item in DTIC Online Indications of Public Availability No digital image of an index entry indicating public availability is currently available There has been no verification of an indication of public availability from an inside cover statementRelated report(s)
This report is part of the following conference: