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Materials 2016, 9(11), 950; doi:10.3390/ma9110950

Friction and Wear Reduction of Eccentric Journal Bearing Made of Sn-Based Babbitt for Ore Cone Crusher

1
Department of Mechanical Engineering, Sun Moon University, Asan 31460, Korea
2
Department of Materials Science, Engineering and Energy Systems Research, Ajou University, Suwon 16499, Korea
3
Department of Mechanical Engineering, Ajou University, Suwon 16499, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Daolun Chen
Received: 30 September 2016 / Revised: 11 November 2016 / Accepted: 15 November 2016 / Published: 22 November 2016
(This article belongs to the Special Issue Tribological Behavior of Materials by Surface Engineering)
View Full-Text   |   Download PDF [5936 KB, uploaded 22 November 2016]   |  

Abstract

An anti-friction Babbitt alloy-coated bearing made by a casting process is a journal bearing, which is used in an ore cone crusher eccentric. The main purpose of the Babbitt coated eccentric is to provide a low friction to support and guide a rotating shaft. Despite the fact that the Babbitt-coated eccentric offers a low friction coefficient and can be operated without a continuous supply of lubricant, it suffers from mining environments and short service life. In this study, an ultrasonic nanocrystalline surface modification (UNSM) technique was used to further reduce the friction coefficient, to increase the wear resistance, and to extend the service life of the Sn-based Babbitt metal. The friction and wear behavior of the Sn-based Babbitt metal was investigated using a block-on-ring tester under both dry and oil-lubricated conditions. The results of the experiments revealed that the friction and wear behavior of Sn-based Babbitt metal could be improved by the application of the UNSM technique. The friction and wear mechanisms of the specimens were explained and discussed in terms of changes in surface properties—microstructure, surface hardness, surface roughness, etc. View Full-Text
Keywords: Babbitt; friction; wear; ultrasonic nanocrystalline surface modification Babbitt; friction; wear; ultrasonic nanocrystalline surface modification
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MDPI and ACS Style

Amanov, A.; Ahn, B.; Lee, M.G.; Jeon, Y.; Pyun, Y.-S. Friction and Wear Reduction of Eccentric Journal Bearing Made of Sn-Based Babbitt for Ore Cone Crusher. Materials 2016, 9, 950.

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