This paper investigates and describes the fatigue mechanism in bearings for automotive alternators. The authors have analyzed the peculiar microstructure change found in these bearings. They have also investigated the effects of grease properties, vibration, and elastic deformation of the outer ring. By analyzing the bearings used in actual engine tests and grease tests for fundamental characteristics, the authors were able to conclude that the fatigue causes were two-fold: load amplification caused by resonance and high bending stresses caused by elastic deformation of the outer ring. As a practical result, the authors able to adopt a newly formulated grease which decreased the vibration level and the peak rolling element load. This led to the development of longer life bearings for automotive alternators.
Long life bearings for automotive alternator applications
Lager mit hoher Standzeit für Drehstromlichtmaschinen im Automobilbereich
SAE Technical Papers ; 1-14
1995
14 Seiten, 20 Bilder, 5 Tabellen, 9 Quellen
Aufsatz (Konferenz)
Englisch
Automobilindustrie , Lichtmaschine , Lager (Maschinenelement) , Lagerbetriebsverhältnisse , Standzeit , Betriebssicherheit , Prozessoptimierung , Lagerschwingung , elastische Verformung , kontinuierliche Schmierung , Werkstoffermüdung , Biegespannung , Schmierstoff , Betriebsverhalten , mechanische Schwingung
Long Life Bearings for Automotive Alternator Applications
SAE Technical Papers | 1995
|Long life bearings for automotive alternator applications
Kraftfahrwesen | 1995
|DSpace@MIT | 2000
|Automotive Alternator Load Simulation System
British Library Conference Proceedings | 1991
|RECTIFIERS FOR AUTOMOTIVE ALTERNATOR SYSTEMS
SAE Technical Papers | 1961
|