A Rolling Fatigue Tester - Its Kinematic and Elastohydrodynamic Relationships.
Phase rept. 1 Sep 70-1 Feb 71,
SOUTHWEST RESEARCH INST SAN ANTONIO TX
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The report describes a bench-type rolling fatigue tester of considerable versatility and ease of variable control, but also of simple construction and modest cost, such that it appears to be well suited to multiple-rig rolling fatigue investigations. One of the features of this tester is that it can readily accept either four balls or three balls and a cone as the test specimens. General expressions for motons, normal loads and compressive stresses, as well as central-region elastohydrodynamic lubricant film thicknesses are derived for both the 4-ball and the 3-ballcone test specimen configurations. These are then applied to some specific examples to obtain numerical solutions. Author
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