Abstract
Abstract The power losses for elliptical and three-lobe bearings, both symmetrical and asymmetrical, were derived as functions of the customary bearing parameters and bearing ellipticity. Expressions are given for two cases; one assuming a complete oil film, and one taking into account the incompleteness of the oil film in the diverging sections of the bearing. All equations are for a concentric shaft position, this being a plausible assumption as noncylindrical bearings are mostly used in low load, high-speed applications. For convenience the power losses for the noncylindrical bearings are plotted in comparison with those for cylindrical bearings of clearance c as given by Petroff’s equation. Excellent agreement was found between the theoretical power losses and experimental results in bearings.
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