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A Study of Lubricating Oil Performance in a Journal Bearing Rig
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1978 by SAE International in United States
Annotation ability available
Several polymer-containing oils have been studied in a journal bearing rig under hydrodynamic lubrication conditions. For shear rates up to 2.5 x 105 s-1 and oil film thicknesses down to 2 μm, these oils showed the same behaviour as polymer free oils.
In a second series of experiments, the bearing was provided with a suitable lining and experiments were carried out under boundary lubrication conditions. Bearing wear could be determined by weighing of the bearing shells, and the results obtained show that for Newtonian lubricants wear increases markedly with decreasing viscosity. The influence of the performance package was demonstrated by two SAE 30 grades. A decrease in wear of about 60 % was effected by a change of the performance package. For non-Newtonian lubricants the wear level is lower than expected on the basis of high shear viscosity alone; an attempt to explain this behaviour should take into account non-Newtonian effects and possibly the presence of films of adsorbed material.
|Technical Paper||The Influence of Polymer Additives on Journal Bearing Performance|
|Technical Paper||Relationship of Engine Bearing Wear and Oil Rheology|
Citationvan Os, N., Bos, A., van Namen, D., and de Rooij, J., "A Study of Lubricating Oil Performance in a Journal Bearing Rig," SAE Technical Paper 780985, 1978, https://doi.org/10.4271/780985.
- Okrent E.H. A.S.L.E. Trans. 4 97 1961
- Okrent E.H. A.S.L.E. Trans. 4 257 1961
- Okrent E.H. A.S.L.E. Trans. 7 147 1964
- Tao F.F. Philippoff W. A.S.L.E. Trans. 10 302 1967
- Rosenberg R.C. “The influence of polymer Additives on Journal Bearing Performance” SAE Transactions 84 paper 750692 1975
- Bell J.C. Voisey M.A. “Some Relationships between the Viscometric Properties of Motor Oils and Performance in European Engines” SAE paper 770378 1977
- McMillan M.L. Murphy C.K. “Temporary Viscosity Loss and its Relationship to Journal Bearing Performance” SAE paper 780374 1978
- Tanner R.I. Aust. J. Appl. Sci. 14 129 1963
- Tanner R.I. J. Lub. Techn. 90F 555 1968
- Williams G. Tanner R.I. Trans. ASME 216 April 1970
- Metzner A.B. Trans. ASME 90F 531 1968
- Metzner A.B. Rheol. Acta 10 434 1971
- Walters K. Davies M.J. “The Rheology of Lubricants” Davenport T.C. Appl. Sci. Publ. 1973
- Furey M.J. A.S.L.E. Trans. 4 1 1961
- Forster E.O. Lubrication Engineering 16 523 1960
- Barlow A.J. Lamb J. Proc. Royal Society 253A 52 1959
- Schilling A. “Motor Oils and Engine Lubrication” Scientific Publ. Ltd. Broseley (U.K.) 1968
- van Battum C.