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Tribology Based Maintenance


The SKF University Technology Center (UTC) for Grease Lubrication is home to Tribology Based Maintenance research. The subjects addressed in Tribology Based Maintenance are related to durability and reliability of grease lubricated bearings. The developed knowledge contributes to the development of life/reliability models used to predict maintenance intervals.

Our research is focused on lubricating grease performance. Grease is a semi-solid material with complex rheology (visco-elastic, shear thinning, thixotropic). Grease is made up of matrix-forming thickener (15%), lubricating oil and additives (85%). The competences applied in grease lubrication lie mainly in “Physics and Chemistry of Fluids” and “Mechanics of Solids”, positioned at the interface of tribology/lubrication, fluid/solid dynamics, and rheology. Model development is on “Elasto-Hydrodynamic Lubrication” and “Lubricating Grease Degradation”.

Our ultimate goal is to select lubricants such that rotating equipment will never fail or such that maintenance can be planned well before possible failures of bearings.