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The Relationship of Journal Bearing Wear to Multigrade Engine Oil Viscometric Properties
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English
Abstract
A high speed road test procedure was developed to demonstrate performance of multigrade engine oils in journal bearing wear protection. High shear viscosities of test oils were approximated through use of a pump loop. A reasonable first approximation of critical viscosity for bearing failure is estimated by measurements at 149°C and about 5Xl05 sec -1 with the pass/fail limit being about 3.5 cSt.
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Stambaugh, R., Kopko, R., and Bennett, P., "The Relationship of Journal Bearing Wear to Multigrade Engine Oil Viscometric Properties," SAE Technical Paper 770627, 1977, https://doi.org/10.4271/770627.Also In
References
- “The Relationship Between Engine Oil Viscosity and Engine Performance,” Joint Publication of the Society of Automotive Engineers, Inc., SAE SP 416, and American Society for Testing and Materials, ASTM STP 621 SAE International Automotive Engineering Congress and Exposition Detroit, MI March 1 1977
- Stewart R. M. Selby T. W. “The Relationship Between Oil Viscosity and Engine Performance - A Literature Search,” Paper 770372 SAE International Automotive Engineering Congress and Exposition Detroit, MI March 1 1977
- Stambaugh R. L. “VI Improvers for Multigrade Oils,” American Society of Lubrication Engineers Annual Meeting Philadelphia, PA May 13 1976
- Stambaugh R. L. Kopfco R. J. “Behavior of Non-Newtonian Lubricants in High Shear Rate Applications,” SAE Transactions 82 1973 Paper 730487
- Stambaugh R. L. Kopko R. J. “A Test Procedure for Evaluating Temporary- Shear Loss of Engine Lubricants,” Paper 750379 SAE Automotive Engineering Congress and Exposition Detroit, MI February 24 28 1975
- Rosenberg R. C. “A Method for Determining the Influence of Multigraded Oils on Journal Bearing Performance,” SAE Transactions 82 1973 Paper 730483
- Rosenberg R. C. “The Influence of Polymer Additives on Journal Bearing Performance,” SAE Transactions 84 1975 Paper 750692
- Bell J. C. Voisey M. A. “Some Relationships Between the Viscometric Properties of Motor Oils and Performance in European Engines,” Paper 770378 SAE International Automotive Engineering Congress and Exposition Detroit, MI March 1 1977
- Lane G. Roberts D. C. Tims J. M. “Measurement of the Viscosity of Multigrade Oils in a Running Engine,” Paper 770379 SAE International Automotive Engineering Congress and Exposition Detroit, MI March 1 1977