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Effect of proprietary oil additives on elastohydrodynamic film thickness
Tribology International, 1983Abstract A study is reported of the effect on a simulated elastohydrodynamic contact of the addition of three proprietary products to the lubricating oil. Chromatic interferometry was used to study changes in lubricant film thickness. Under the conditions employed it was found that Molyslip did not affect film thickness markedly, but there is ...
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Elastohydrodynamic Film Thickness and Tractions for Oil-in-Water Emulsions
Tribology Transactions, 2004Emulsions, consisting of a small volume of oil dispersed in water in the form of small particles, are popular lubricants for metal rolling and some machine design applications. A number of mechanisms have been suggested for the lubricating behavior of emulsions, among which plate-out, starvation, and dynamic concentration are of particular interest ...
HAIXIA YANG +3 more
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Interpreting Experimental Bearing Oil Film Thickness Data
SAE Technical Paper Series, 1989<div class="htmlview paragraph">To verify the relationship between bearing oil film thickness and high-temperature, high-shear (HTHS) engine oil viscosity, accurate values for bearing oil temperature and shear rate are needed. Techniques for making these determinations are presented using data collected from engine tests with both single- and ...
James A. Spearot +2 more
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Oil Film thickness Indicators for Sleeve-type Bearings
Scientific Lubrication, 1951In studies of engines and engine lubricants, it is often desirable to measure clearances between shafts and sleeve—or journal-type bearings during operation. However, it is usually rather difficult to obtain such measurements without affecting the operation, particularly at high speeds. A method recently developed by M. L.
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AN EXAMINATION OF OIL FILM THICKNESS IN A BALL-ON-DISC ASSEMBLY
Tribologia, 2016The results of oil film thickness investigations in non-conformal contact in sliding pairs with modified surfaces are presented in the article. The investigations were realized on a ball-on-disc instrument with colorimetric interferometry. Balls were made from 100Cr6 steel of hardness 60–62 HRC. The diameter of balls was 19.05 mm.
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Piston Ring Oil Film Thickness- The Effect of Viscosity
SAE Technical Paper Series, 1985<div class="htmlview paragraph">A Petter AV1 diesel engine has been modified to operate as a crosshead engine with a separate lubricant supply to the piston rings. Measurements of the minimum oil film thickness between the rings and the liner are presented for both mono-grade and multi-grade oils.
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The Relative Thickness of Grease and Oil Films in Rolling Bearings
Proceedings of the Institution of Mechanical Engineers, 1979A method for measuring the thickness of grease films between the rollers and rings of rolling bearings is described. Measurements in two designs of bearing show that a grease can initially form thicker films than can its base oil but that, without frequent relubrication, the grease films become slightly the thinner with time.
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Measurement of oil film thickness in sliding contact
Soviet Materials Science, 1974Yu. K. Mits +2 more
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Online monitoring of oil film thickness of journal bearing in aviation fuel gear pump
Measurement: Journal of the International Measurement Confederation, 2022Jiangfeng Fu, Huacong Li
exaly