Fumio Obata, Komei Fujita, Masahiro Fujii

Research output: Contribution to journalArticlepeer-review


As a basis for finding out, from the two-cylinder test results, a method for estimating the scoring temperature in a spur gear pair, the anti-scoring capacity of a gear base oil was examined by both spur gear and two-cylinder tests. There was no definite difference between the anti-scoring capacity in through-hardened steel rollers and that in case-hardened ones. In the mixed lubrication state, it is appropriate to estimate the scoring temperature of a spur gear pair from the outer surface bulk temperatures just before scoring in the two-cylinder tests, with the bulk temperature being taken as an index. In the estimation, it is necessary to take into account the specific slidings and sliding velocities at the tips of the wheel and the pinion, and the decrease in scoring temperature on the approach side due to the tip interference caused by teeth bending.

Original languageEnglish
Pages (from-to)679-686
Number of pages8
JournalJournal of Japan Society of Lubrication Engineers
Issue number9
Publication statusPublished - Dec 1 1987
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)


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