JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS
Online ISSN : 2189-9967
Print ISSN : 0915-1168
ISSN-L : 0915-1168
Volume 62 , Issue 6
Special Issue on Trend of Biodegradable Lubricants
Showing 1-15 articles out of 15 articles from the selected issue
Announcement
Contents
Serial Messages to Tribologists
Special Issue on Trend of Biodegradable Lubricants
Explanation
Lecture Lecture of Tribology
Essay The Tribo-Soshi, Essays from Tribologists
Up-to-date News Essay for Overseas Experience in Tribology -Around the World-
Original Contribution
  • Shoji NOGUCHI, Tomoya HOTTA
    2017 Volume 62 Issue 6 Pages 405-410
    Published: June 15, 2017
    Released: June 15, 2017
    [Advance publication] Released: March 31, 2017
    JOURNALS FREE ACCESS

    We previously reported an increase in thrust ball bearing vibration and the formation of ridge marks on the raceway surface due to electrolytic corrosion. However, that was a macroscopic study of how such ridge marks were formed, and no observations were carried out to determine the changes that occurred to the initial pits after their formation. In the present study, one of the initially formed pits was examined, and changes in its width and depth were observed as the vibration increased during flow of the corrosion current. Both the width and depth of the pit were found to increase in proportion with the amplitude of vibration acceleration. Coalescence of adjacent ridge marks into a single larger one and subsequent splitting into two were also observed.

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