Substitution of Inexpensive Bench Tests for the FZG Scuffing Test—Part II: Oil Tests©
作者:
F. Van De Velde,
P. Willen,
P. De Baets,
C. Van Geeteruyen,
期刊:
Tribology Transactions
(Taylor Available online 1999)
卷期:
Volume 42,
issue 1
页码: 71-75
ISSN:1040-2004
年代: 1999
DOI:10.1080/10402009908982192
出版商: Taylor & Francis Group
关键词: Gear Lubricants;Scuffing;Bench Tests;Wear
数据来源: Taylor
摘要:
The standardized FZG apparatus is widely applied for assessing the anti-scuffing properties of gear lubricants. However, this rest is very time-consuming and expensive. For the development of new transmission lubricants, quicker and less expensive tests would be useful. In this two-part article, the possibility to qualify gear lubricants by means of two common bench tests (SRV Optimol and four-ball) was investigated. In the first part, the different test rigs (FZG, SRV, four-ball) are presented and the parameters related to scuffing according to literature (lubricant film thickness, flash temperature and contact pressure) are calculated for the three testers. In this part, test results of eight lubricants obtained with the three test rigs are presented and compared. Results showed a.o. that the SRV wear scar diameter and the four-ball load-wear index correlated with the FZG failure load stage. Inconsistencies between test results are clarified based on lubricant composition and the parameters related to scuffing as calculated in the first part. The relevance of the different scuffing criteria is discussed. Finally, test procedures that are quicker and less expensive than FZG but still reliable for determining the resistance to scuffing of gear lubricants are presented.
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