Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Preparation and Characterization of Polymer Lubricating Bearings

고온용 폴리머 윤활 베어링의 특성 연구

  • 한종대 (창원대학교 화공시스템공학과) ;
  • 김상근 (셰플러 코리아㈜) ;
  • 김병관 (창원대학교 화공시스템공학과)
  • Published : 2008.08.31
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Abstract

Microporous polymer lubricants(MPLs) are solid polymer materials containing micropores which are filled with liquid lubricants, and which are molded or formed to suit rolling bearings or other machine parts requiring lubrication. MPLs can be effectively applied to provide long-term, maintenance-free lubrication of a variety of machine elements without fully replacing of oils and greases. The application of rolling bearings packed fully with an MPL could reduce or eliminate the problems such as grease deterioration, leakage, under-lubrication caused by insertion of water or foreign matters under severe operation conditions. This paper discuss the application of MPLs for lubrication of rolling ball bearings. Two different MPLs were synthesized and the features of MPLs were tested. Characteristics of the bearings which are packed fully with synthesized MPLs were investigated using SEM, TG/DSC, extents of oil leakage, OIT, and life time test. After these preliminary tests twelve MPLs were synthesized and evaluated by measuring extents of oil leakage and OIT values. Then synthesis conditions for the optimum MPL were selected by SSRED(Six Sigma Robust Engineering Design) pro gram using extents of oil leakage and OIT values respectively. The optimum MPL by means of OIT value showed higher performance such as long life time and application at higher temperature of $140^{\circ}C$ than previous temperature of $100^{\circ}C$.

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References

  1. Jamison, W. E., "Applications of Microporous Polymer Lubricants," Lubrication Engineering, Vol. 38, No. 12, pp. 758-761, 1982
  2. Kim, S. K., Kim, B. K. and Han, J. D., "A Study on Synthesis and Characteristics of the Optimum Urea Type Greases for Rolling Bearings," J. KSTLE, Vol. 22, No. 5, pp. 269-275, 2006
  3. Jamison, W. E., Nelson, C. D. and Cuckler, J. H., "New Developments in Microporous Polymer Lubricants," Lubrication Engineering, Vol. 41, No. 5, pp. 274-279, 1984
  4. Rhee, I. S., "Development of a New Oxidtion Stbility Test Method for Grease Using a Pressure Differential Scanning Calorimeter," NLGI's 57th Annual Meeting, TA-052, pp. 2-11, 1990
  5. Keller, M. A. and Sara, C. S., "Behavior of High Temperature Lubricants in a Pressure Differential Scanning Calorimeter," Tran. Trans., Vol. 41, No. 4, pp. 586-592, 1998
  6. Kim, S. K., Park, C. N., Kim, B. K. and Han, J. D., "Study on Oxidation Stability and Life of Rolling Bearing Grease," J. Korean Ind. Eng. Chem., Vol. 15, No. 8, pp. 907-912, 2004
  7. Turell, M. B. and Bellare, A., "A Study of the Nanostructure and Tensile Properties of Ultra-high Molecular Weight Polyethylene," Biomaterials, Vol. 25, pp. 3389-3398, 2004 https://doi.org/10.1016/j.biomaterials.2003.10.027
  8. Simis, K. S., Bistolfi, A., Bellare, A. and Pruitt, L. A., "The Combined Effects of Crosslinking and High Crystallinity on the Microstructural and Mechanical Properties of Ultra High Molecular Weight Polyethylene," Biomaterials, Vol. 27, pp. 1688-1694, 2006 https://doi.org/10.1016/j.biomaterials.2005.09.033
  9. Liu, C. Z., Wu, J. Q., Li, J. Q., Ren, L. Q., Tong, J. and Arnell, A. D., "Tribological Behaviours of PA/UHMWPE Blend under Dry and Lubricating Condition," Wear, Vol. 260, pp. 109-115, 2006 https://doi.org/10.1016/j.wear.2004.12.044