Friction Reducing Potential of Low Viscosity Engine Oils in Bearings

962033

10/01/1996

Event
1996 SAE International Fall Fuels and Lubricants Meeting and Exhibition
Authors Abstract
Content
The friction reducing potential of low viscosity engine oils in bearings has been investigated using a journal bearing test rig. Friction was measured on both the journal and bearing of a production connecting rod and compared to results from a simple analytical model over a range of speeds and loads. Hydrodynamic lubrication conditions existed over most test conditions, but mixed lubrication conditions were shown to exist at low speeds in heavily loaded journal bearings.
Results indicate significant friction reduction through the use of low viscosity oils under hydrodynamic lubrication conditions. In mixed lubrication conditions, oils with friction reducing additives exhibit lower friction than those without such additives. These findings suggest the possibility that a low viscosity oil with effective friction reducing additives can extend low friction benefits over the entire range of operation of engine bearings. Further work is necessary to understand bearing durability and performance in mixed lubrication.
Meta TagsDetails
DOI
https://doi.org/10.4271/962033
Pages
10
Citation
Sorab, J., Korcek, S., Brower, C., and Hamm[ILLEGIBLE], W., "Friction Reducing Potential of Low Viscosity Engine Oils in Bearings," SAE Technical Paper 962033, 1996, https://doi.org/10.4271/962033.
Additional Details
Publisher
Published
Oct 1, 1996
Product Code
962033
Content Type
Technical Paper
Language
English