Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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A Study on Wear Properties of Journal Bearing with Sommerfeld Number Variation

저어널 베어링의 좀머펠트 수 변화에 따른 마모 특성에 관한 연구

  • 김철우 (삼성전자 생활시스템연구소) ;
  • 김경웅 (한국과학기술원 기계공학과)
  • Published : 1997.06.01
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Abstract

In this paper, the characteristics of lubrication and wear phenomena of journal bearing with respect to film parameter and Sommerfeld number variation are investigated experimentally and the design criterion for the hydrodynamic journal bearing is presented to avoid wear and seizure. Experimental work is performed with various rotating speed and load, and lubricant is used synthetic oil and mineral oil. By the results of the experiment, it is found that friction coefficient is decreased as Sommerfeld number is decreased, and that wear phenomenon is observed when Sommerfeld number is below $9$\times$10^{-4}$ and there are much alike in wear properties between synthetic and mineral oil.

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References

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