Experimental study of free surface grease flow subjected to centrifugal forces

J.X. Li, L.G. Westerberg, E. Höglund, P. Baart, P.M. Lugt

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In order to improve the understanding of grease flow in various applications such as gears, seals and rolling bearings, the free surface flow of different greases under different running conditions has been investigated. A rotating disc has been used to study grease flow as the grease was subjected to a centrifugal force. The grease flow and mass loss was measured for greases with different rheology on different surfaces and with surface textures. It is shown that the speed at which grease starts to move is mostly determined by grease type and yield stress, while the impact of the surface material and roughness is less pronounced. The mass loss is shown to be influenced both by the rheology of the grease and the surface material.
Original languageEnglish
Title of host publicationProceedings of 16th Nordic Symposium on Tribology - NORDTRIB 2014
EditorsL.P. Nielsen, I.M. Sivebaek, S. Stensig Eskildsen, S. Louring, L.E. Larsen
Place of PublicationAarhus, Denmark
PublisherDanish Technological Institute
Number of pages6
ISBN (Print)978-87-92765-26-0
Publication statusPublished - 10 Jun 2014
Event16th Nordic Symposium on Tribology, NORDTRIB 2014 - Aarhus, Denmark
Duration: 10 Jun 201413 Jun 2014
Conference number: 16


Conference16th Nordic Symposium on Tribology, NORDTRIB 2014
Abbreviated titleNORDTRIB


  • Grease surface flow
  • Rheology
  • Adhesion


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