SEDL / STP / STP771-EB / STP36140S

Experience of Element and Full-Bearing Testing of Materials over Several Years

Johnston, GB
Manager of Mechanical Testing Department, statistician, research engineer, and researcher, SKF Engineering and Research Centre B. V., Nieuwegein,

Andersson, T
Manager of Mechanical Testing Department, statistician, research engineer, and researcher, SKF Engineering and Research Centre B. V., Nieuwegein,

Amerongen, Ev
Manager of Mechanical Testing Department, statistician, research engineer, and researcher, SKF Engineering and Research Centre B. V., Nieuwegein,

Voskamp, A
Manager of Mechanical Testing Department, statistician, research engineer, and researcher, SKF Engineering and Research Centre B. V., Nieuwegein,

Pages: 16    Published: Jan 1982

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Abstract

A review is made of several years' experience in determining quantitatively the influence of material and production processes on the fatigue performance of rolling element bearings. This experience covers bearing testing and two different “element” test methods—the radial ball bearing with cylindrical inner ring and the thrust ball bearing with flat washer methods.

So far, it has been difficult to correlate the results from those element tests with results obtained from full-bearing tests. This is due to the special features of the concentrated point contacts between the balls and nonconforming surfaces used in the element methods. These features are an apparently random groove formation and a material transformation and failure mode different from those of normal bearings.