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Medientyp:
E-Artikel
Titel:
Fatigue Failure Progression in Ball Bearings
Beteiligte:
Kotzalas, Michael N.;
Harris, Tedric A.
Erschienen:
ASME International, 2001
Erschienen in:
Journal of Tribology, 123 (2001) 2, Seite 238-242
Sprache:
Englisch
DOI:
10.1115/1.1308013
ISSN:
0742-4787;
1528-8897
Entstehung:
Anmerkungen:
Beschreibung:
Typically, the life of a component containing rolling contacts is defined as the time to the initiation of a fatigue spall. Initiation of a spall does not always cause the component to stop performing its designed function. Operating the component past the initiation of a spall increases the heat generation rates and vibrations, eventually leading to total failure. A ball/v-ring test rig was used to initiate and progress spalls on bearing balls where spall progression was measured as a function of time, and vibrations monitored using accelerometers. A spall progression life mathematical model for balls endurance tested in the v-ring rig was created by extending the Ioannides–Harris fatigue life theory. Also, excessive vibratory loading was determined to be the major cause of total component failure.