Analysis of bearing steel exposed to rolling contact fatigue

K. T. Hansen, Søren Fæster, Anand Natarajan, Oleg Mishin, Hilmar Kjartansson Danielsen, Dorte Juul Jensen, Peder Klit

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The objective of this work is to characterize fatigue damage in roller bearings under conditions of high load and slippage. A test rig constructed for rolling contact fatigue tests of rings is described, and test results are presented for rings taken from two spherical roller bearings. The preparation of the rings and the loading situation are explained. Test conditions are chosen with the aim of achieving pitting formation at the contacting surfaces. During testing the contact pressure, torque and the rotational speed are monitored and recorded. After testing the tested rings have been characterized using X-ray tomography and scanning electron microscopy. The observations confirm that rolling contact fatigue testing at high loads leads to pitting failure at the contacting surfaces. The pitting mostly appears on one side of the contact, attributed to a non-uniform contact pressure in the axial direction.
Original languageEnglish
Article number012024
JournalI O P Conference Series: Materials Science and Engineering
Number of pages8
Publication statusPublished - 2017
Event38th Risø International Symposium on Materials Science - Technical University of Denmark , Roskilde, Denmark
Duration: 4 Sept 20178 Sept 2017


Conference38th Risø International Symposium on Materials Science
LocationTechnical University of Denmark

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