한국윤활학회:학술대회논문집 (Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference)
- 한국윤활학회 2003년도 학술대회지
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- Pages.395-401
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- 2003
자동차용 깊은홈 볼베어링의 조기파손 : 2보 - 임계압흔의 크기
Premature Failure of Deep Grooved Ball Bearing for Automobiles : Part 2 - Critical Dent Size
- Hyun Joons (FAG Hanwha Bearings Corp.) ;
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Park Tae Jo
(Gyeongsang Natl. Univ., ReCAPT)
- 발행 : 2003.11.01
초록
In this paper, the dent printing phenomena and critical dent size which lead to premature failure of deep grooved ball bearing for automobiles are presented. The results of newly assembled test bearings showed that the ball dent size strongly affect the bearing life and inner ring raceways were the major failed parts in spite of using the dented balls. The dent printing phenomena are a root cause of premature failure, which was not reported until now. And there exist the critical ball dent size for given rolling bearings and operating conditions. So, the initial condition of tribologically mating parts should be treated as important as the failed body itself.