Accession Number : AD0722005

Title :   A Status Review of Externally-Pressurized, Steam-Lubricated Bearings.

Descriptive Note : Technical rept.,

Corporate Author : MECHANICAL TECHNOLOGY INC LATHAM N Y

Personal Author(s) : Pan,Coda H. T. ; Arwas,Eli B. ; Finkin,Eugene ; Malanoski,Stanley B.

Report Date : FEB 1971

Pagination or Media Count : 82

Abstract : Lubrication with condensible vapors, such as steam near its saturation condition introduces new problems of bearing design, notably the prevention of steam-hammer instability and of film collapse induced by condensation. These problems are discussed in this report. The problem of materials selection for steam-lubricated bearings is reviewed with regard to the properties desired of candidate materials, and the results of erosion tests with solid materials and plasma-sprayed coatings are discussed. Experiments conducted to establish load capacity, stiffness flow and instability thresholds of steam-lubricated journal and thrust bearings are described and the results compared with theoretical prediction. A 500-hour endurance test recently completed with a 200-pound rotor fully supported in steam lubricated bearings is described with emphasis on the practical requirements of steam lubricated bearings. (Author)

Descriptors :   (*BEARINGS, PERFORMANCE(ENGINEERING)), JOURNAL BEARINGS, THRUST BEARINGS, CORROSION RESISTANCE, EROSION, STABILITY, EXPERIMENTAL DATA, TEST METHODS

Subject Categories : Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE