DIELECTRIC PROPERTIES OF GREASE LUBRICANTS

Yuichiro NAGATA
y.nagata@sussex.ac.uk

Romeo GLOVNEA
r.p.glovnea@sussex.ac.uk


School of Engineering and Design, University of Sussex, UNITED KINGDOM

Abstract.  Grease lubricants are often preferred in machine elements working under elastohydrodynamic conditions such as rolling element bearings and constant velocity joints due mainly to the fact that they do not need resupply and filtering systems and provide lower lubricant losses. At the same time grease are complex materials, with liquid and solid phases, which make difficult the prediction of their behaviour in those contacts. In the present paper dielectric properties of lubricating greases are studied, as a step towards the understanding of their behaviour and predicting their in-contact rheological properties.
 

Keywords:  elastohydrodynamic lubrication, grease, dielectric properties, rheology

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