Pressure Distribution in Oil Films of Journal Bearings

One fact which is becoming widely recognized by users of journal bearings is that under proper conditions of operation the load applied to a journal bearing is supported by the hydrostatic pressures built up in a film of lubricant wedged between and completely separating the journal and bearing. Thi...

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Bibliographic Details
Published in:Journal of fluids engineering 1932-01, Vol.54, p.149-161
Main Authors: McKee, S. A., McKee, T. R.
Format: Article
Language:English
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Summary:One fact which is becoming widely recognized by users of journal bearings is that under proper conditions of operation the load applied to a journal bearing is supported by the hydrostatic pressures built up in a film of lubricant wedged between and completely separating the journal and bearing. This paper describes an investigation at the Bureau of Standards the purpose of which was to determine the distribution of pressure in the oil film of a full journal bearing for various conditions of operation and of bearing construction. A specially designed apparatus provided a means for measuring the film pressures at practically all points on the surface of a bearing when operating under different conditions of load, speed, and viscosity of the lubricant. The results of nine tests made under conditions involving changes in clearance, load, speed, and viscosity are presented graphically in the form of pressure-distribution curves. In conclusion the characteristics of the film-pressure distribution are summarized, and further steps toward a better understanding of the pressure distribution are outlined.
ISSN:0098-2202
1528-901X
DOI:10.1115/1.4022171