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Effective Viscosity of Polymer Thickened Oils in Gear Lubrication
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English
Abstract
Some new insights on the special features of gear lubrication in relation to the effective viscosity of polymer thickened oils were obtained by experiments using an IAE gear tester. It was found that the load carrying capacity of multigrade oils correlates with the viscosity after a 60 min sonic shear stability test and the change of bulk viscosity during operation of a gear system can be calculated from the EHL film thickness and the assumed extent of viscosity loss in sheared area.
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Authors
Citation
Hoshino, M. and Nakayama, T., "Effective Viscosity of Polymer Thickened Oils in Gear Lubrication," SAE Technical Paper 811205, 1981, https://doi.org/10.4271/811205.Also In
References
- Rein S. W. Alexander, D. L. “Development of a High Shear Rate Capillary Viscometer for Engine Oils.” SAE Paper 800363
- Dowson, I. D. “Elastohydrodynamics.” Proc. I. Mech. E 1967-68 128 3A 151