This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Study of Low Viscosity ATF with Extending Gear Fatigue Life
Technical Paper
2007-01-1976
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Although it has been reported that the increase of base oil viscosity and the selection of suitable VII (Viscosity Index Improver) are key factors to improve metal fatigue life for the development of low viscosity ATF, the problem of gear fatigue life has not been perfectly solved. In this study, the effect of VII on gear fatigue life was evaluated by using EHD film thickness measurement and the block on ring friction tester. Based on the study, the low viscosity ATF that has good anti-pitting performance in gears can be proposed by optimizing the combination of base oil and VII.
Recommended Content
Authors
Citation
Fujita, H., Takakura, Y., and Ikeda, T., "Study of Low Viscosity ATF with Extending Gear Fatigue Life," SAE Technical Paper 2007-01-1976, 2007, https://doi.org/10.4271/2007-01-1976.Also In
References
- Yamamori K. Saitou K. Kobiki Y. Ogawa A. “Development of New Automatic Transmission Fluid for Fuel Economy” SAE Paper 2003-01-3258
- Kurosawa O. Matsui S. Kamiya K. Morita E. Kawasaki Y. “Development of the Fuel Saving Low Viscosity ATF” SAE Paper 2003-01-3257
- Umamori N. Kugimiya T. “Study of Viscosity Index Improver for Fuel Economy ATF” SAE Paper 2003-01-3256
- Li S. Devlin M. T. Milner J. Iyer R. Jao T. C. “Investigation of Pitting Mechanism in the FZG Pitting Test” SAE Paper 2003-01-3233
- Jao T. C. Devlin M. T. Baren W. E. Milner J. Koglin C. “Prediction of Lubricant's Fatigue Life in the FZG Micropitting Test” SAE Paper 2005-01-2179
- Jonston G. J. Wayte R. Spikes H. A. “The measurement and study of very thin lubricant films in concentrated contacts” Tribology Transactions 187 194 1991
- Fujita H. Spikes H. A. “The Study of Antiwear Film Formation Kinetics” I. Mech. E. Part J 265 277 2004