Abstract
It is generally accepted that the performance of compensated externally pressurized journal bearings is superior to ordinary journal bearings. This paper presents the experimental results of performance studies of compensated and uncompensated journal bearings under static and alternating loading with an operating frequency of 327 c/min. The length/diameter ratio of the test bearings was 1/3 and both bearings had 10 closed-end grooves machined in the bearing surfaces.
Film pressure surveys reveal considerable differences in the film pressure distribution in the two bearings, and explain the difference in the performance characteristics of these bearings. Comparisons are made in terms of measured load capacity, stiffness, and lubricant flow rates. The relative costs of manufacture and the operating costs of these bearings are also discussed.
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