If the rings of a deep groove ball bearing are fitted out of alignment with each other, the path of the balls has an oval configuration. If the cage is centered on the balls, it has to change shape for every revolution it performs. Fatigue cracks then form in the material and sooner or later they lead to fractures.There is a similar case when a thrust ball bearing is fitted together with radial plain bearings. If clearance arises in the plain bearings, the washers of the thrust bearing become displaced in relation to each other. Then the balls do not follow their normal path and heavy stresses may arise in the cage.
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About the Authors:
R.N. Narkhedkar and P.S. Joshi are associated with the D.K.T.E.s Textile and Engineering Institute, Ichalkaranji
Originally published in the Textile Review, May, 2012
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