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Oil film thickness and temperature measurements in PTFE and Babbitt faced tilting-pad thrust bearings
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.
2006 (English)In: Proceedings of the 11th Nordic symposium on tribology: NORDTRIB 2004 : Tromsø, Harstad, Hurtigruten, [Bodø], Norway, June [1 - 5], 2004, 2006, 167-176 p.Conference paper, Published paper (Refereed)
Abstract [en]

The influence of pad facing material on hydrodynamic lubrication in tilting-pad thrust bearings is investigated in terms of pad and oil-film temperatures and thicknesses. Two tilting-pad thrust bearings are examined: one with babbitt pad facing, the other with a layer of PTFE-based composite material. Frictional torque, pad, collar, and oil-film temperatures and thicknesses are all monitored by means of a comprehensive array of sensors mounted in the bearing and shaft. A considerably smaller range of temperature is seen in the steel backing immediately below the surface material for the PTFE faced pads. Oil-film temperatures measured at the mid-point on the pad trailing edge show no significant difference between the two bearings. Oil-film thicknesses in the two bearings are seen to differ. At the leading edge, oil-film thickness is thinner for the PTFE pad than for babbitt. However, at the trailing edge the PTFE pad has the thicker film.

Place, publisher, year, edition, pages
2006. 167-176 p.
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-39750Local ID: e9c98710-0383-11dc-8b31-000ea68e967bOAI: oai:DiVA.org:ltu-39750DiVA: diva2:1013267
Conference
Nordic Symposium on Tribology : 01/06/2004 - 05/06/2004
Note
Godkänd; 2004; Bibliografisk uppgift: Även publicerad i Tribology international, ISSN 0301-679X , vol 40(2007):4; 20070516 (cira)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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