Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Performance of Automotive Wheel Bearing Grease by Water Contents

수분함량에 따른 자동차용 휠베어링 그리스 품질특성 연구

  • Lim, Young-Kwan (Fuel Technology R&D Center, Korea Institute of Petroleum Management) ;
  • Lee, Eun-Hee (Fuel Technology R&D Center, Korea Institute of Petroleum Management) ;
  • Lee, Joung-Min (Fuel Technology R&D Center, Korea Institute of Petroleum Management) ;
  • Jeong, Choong-Sub (Fuel Technology R&D Center, Korea Institute of Petroleum Management)
  • 임영관 (한국석유관리원 녹색기술연구소) ;
  • 이은희 (한국석유관리원 녹색기술연구소) ;
  • 이정민 (한국석유관리원 녹색기술연구소) ;
  • 정충섭 (한국석유관리원 녹색기술연구소)
  • Received : 2011.04.25
  • Accepted : 2011.07.05
  • Published : 2011.10.31
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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.

Keywords

References

  1. Lim, Y. K., Lee, E. H., Lee, J. M., and Jung, C. S., "Performance of Automotive Wheel Bearing Grease by Water Contents", KSTLE 춘계학술대회 논문집, 2011.
  2. E. Richard Brooser, Handbook of lubrication, Theory and practice of tribology, Vol. II Theory & Design, CRC Press.
  3. ASM Handbook, Friction, lubrication and wear technology, Vol. 18, Metal Park, OH: ASM International; 1992.
  4. Kim, J. Y., Chung, K. W., Kim, Y. W., and Jo, W. H., "Anti-wear Performance and Life Evaluation of Wheel Bearing Type Greases", KSTLE 추계학술대회 논문집, pp. 111-116, 2004.
  5. Business act for quality standard inspection method and inspection fee for petroleum product, Ministry of Commerce, Industry and Energy, 2010-236.
  6. Huh, Y. M., Lee, K., Sim, T. Y., and Kang, S. S., "Study on Geometry Design of Lip-seal for Automobile Wheel Bearing Drag Torque and Sealing Performance", Transaction of KSAE, Vol. 15, No. 4, pp. 10-16 (2007).
  7. Mistry, A. and Bradbury, R., "Performance of Lubricating Grease in the Presence of Water", Eurogrease, pp. 12-22, 2001.

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  3. Decomposition of Thickener in Grease by Water Contamination vol.28, pp.1, 2012, https://doi.org/10.9725/kstle.2012.28.1.033
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