Oil-film thickness and temperature measurements in PTFE and babbitt faced tilting-pad thrust bearings
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
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.
PTFE, tilting-pad thrust bearing, film thickness, pad temperature
IdentifiersURN: urn:nbn:se:kth:diva-81284DOI: 10.1243/135065005X9853ISI: 000231480300001OAI: oai:DiVA.org:kth-81284DiVA: diva2:497274
QC 201202292012-02-102012-02-102012-02-29Bibliographically approved