수분함량에 따른 자동차용 휠베어링 그리스 품질특성 연구
Performance of Automotive Wheel Bearing Grease by Water Contents
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초록
Automotive wheel bearing grease helps to reduce stresses and prevent wear of wheel bearings. But it is easily contaminated by water and other contaminants. In this study, we investigated the property change of automotive wheel bearing grease under water contamination. The result showed that some properties such as dropping point, work penetration and oxidation stability were not influenced by water content. However, most of properties such as work stability, water washout characteristics, leakage tendency, oil separation, evaporation loss and rust protection became worse after water was added. This is thought that added water makes the interaction weak between thickener and base oil of grease.
Abstract
Automotive wheel bearing grease helps to reduce stresses and prevent wear of wheel bearings. But it is easily contaminated by water and other contaminants. In this study, we investigated the property change of automotive wheel bearing grease under water contamination. The result showed that some properties such as dropping point, work penetration and oxidation stability were not influenced by water content. However, most of properties such as work stability, water washout characteristics, leakage tendency, oil separation, evaporation loss and rust protection became worse after water was added. This is thought that added water makes the interaction weak between thickener and base oil of grease.
참고문헌 (7)
- Lim, Y. K, "Performance of Automotive Wheel Bearing Grease by Water Contents", KSTLE 춘계학술대회논문집 (2011)
- E. Richard Brooser, "Handbook of lubrication, Theory and practice of tribology, Vol. II Theory & Design", CRC Press
- "ASM Handbook, Friction, lubrication and wear technology, Vol. 18" (1992), ASM International
- Kim, J. Y, "Anti-wear Performance and Life Evaluation of Wheel Bearing Type Greases", KSTLE 추계 학술대회 논문집, pp.111~116 (2004)
- "Business act for quality standard inspection method and inspection fee for petroleum product, Ministry of Commerce, Industry and Energy, 2010-236", ~ (2010)
- 허영민, "자동차용 휠베어링의 기동토크와 밀봉성을 고려한 립 씰의 형상 설계에 관한 연구", 한국자동차공학회 논문집, 15(4), pp.10~16 (2007), 한국자동차공학회
- Mistry, A, "Performance of Lubricating Grease in the Presence of Water", pp.12~22 (2001), Eurogrease