A Comparative Study of Some Two-Lobed Journal Bearing Configurations

The two-lobed configurations considered for the present study are: the elliptical bearing, offset-halves bearing and two other configurations which are geometrical variations of the first two bearing forms. A companion of their performance characteristics has been obtained by theoretical analysis. It has been shown that, unlike elliptical and offset-halves bearings, which have only limited range of effective dynamic performance, a two-lobe configuration can provide consistently good dynamic performance over a wide range of load conditions.