RCF life comparison of bearing steels at two stress levels. M.A. Liston. Lubric. Engng., June 1999, 55(6), 12--19.
A ball-on-rod test machine is described and illustrated. This is used to evaluate the rolling contact fatigue (RCF) of steels for bearing applications. Data on test conditions and material properties are tabulated. Tests are carried out at two contact stress levels. Results show that lowering the contact stress increases the length of the test five-fold but does not change the relative ranking of the materials in terms of fatigue life. RCF testing at the higher stress level causes plastic deformation of the steel rod test track. Minimal deformation occurs at the lower stress level. 11 refs.