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Oil-film thickness and temperature measurements in PTFE and babbitt faced tilting-pad thrust bearings
LuleƄ University of Technology, Division of Machine Elements.
2005 (English)In: Proceedings of the Institution of mechanical engineers. Part J, journal of engineering tribology, ISSN 1350-6501, Vol. 219, no 3, 179-185 p.Article in journal (Refereed) Published
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
2005. Vol. 219, no 3, 179-185 p.
Keyword [en]
PTFE, tilting-pad thrust bearing, film thickness, pad temperature
National Category
URN: urn:nbn:se:kth:diva-81284DOI: 10.1243/135065005X9853ISI: 000231480300001OAI: diva2:497274
QC 20120229Available from: 2012-02-10 Created: 2012-02-10 Last updated: 2012-02-29Bibliographically approved

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Glavatskih, Sergei
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