Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)
- 1998.04a
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- Pages.47-54
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- 1998
An Experimental Study of Environmental Effects on the Rolling Resistance of Bearing Surfaces Coated by Soft Metallic Films
연금속 박막이 코팅된 베어링 표면의 구름 저항 거동에 미치는 분위기의 영향에 대한 실험적 고찰
Abstract
An experimental study was performed to discover the effect of environmental conditions on the rolling resistance behavior of pure silver and lead coated 52100 bearing steel. Pure silver and lead coating were produced by a thermal evaporation coating method. Experiments using a thrust ball bearing-typed rolling test-rig were performed under vacuum, dry air and controlled humidity conditions. Results showed that agglomeration of particles were prevented in vacuum environment and as it showed low and stable rolling resistance by shakedown phenomena. Also, humidity relates closely to the agglomeration of particles and increased the rolling resistance after the failure of coated layer.
Keywords
- soft metallic coating;
- rolling testing;
- thermal evaporation coating;
- agglomeration of particles;
- environmental effects