This paper is a presentation of experimental data concerning the hydrodynamic performance of short journal bearings under conditions approaching zero minimum oil-film thickness near or in the region of boundary lubrication. Experimental data are presented for short journal bearings with length-to-diameter ratios between 1/2 and 1/53. Theoretical performance of short journal bearings by several theories is compared with experimental findings of extremely short bearings. Six different load numbers are defined and are found to be useful in predicting and analyzing the performance of short journal bearings.
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L. F. Kreisle (1956) studied this question.
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