A Study of the Lubrication and Dynamics of Geometrically Perfect, Lightly Loaded, Cylindrical Roller Bearings with Particular Reference to Shaft Loci

Abstract

The principal objective of this paper is to ascertain and quantify the cyclic movement of the centre of a shaft in a geometrically perfect, lubricated, cylindrical roller bearing exhibiting initial clearance and subjected to a light and steady load. The movement may be important in relation to the accuracy of location of shafts in roller bearings, and it is shown that a detailed consideration of the rolling element assembly predicts some interesting effects. The study also covers more conventional features of bearing performance such as lubricant film thickness and coefficient of friction, and shows the effect of squeeze to be negligible under steady bearing loads.

An Advanced Apparatus for the Study of Roller and Cage Slip in High-Speed Roller Bearings

“…Further, the running accuracy and dynamic stability of the test bearing may be monitored with the aid of temperaturecompensated, proximity transducers which are used in a similar manner to that employed for the study of shaft loci [8,9]. Analysis predicts that even a perfect-geometry bearing will exhibit such loci, no matter how small, with the most important single factor governing them being the bearing operating clearance [14,15].…”