Thermal validation of a misaligned grease-lubricated journal bearing model

A. Dick, C. Lin, Y. Wang, Q. J. Wang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Bearing temperatures predicted by a misaligned grease-lubricated journal bearing simulation were compared with experimental data. The numerical simulation combines a steady state mixed thermo-elastohydrodynamic lubrication model with a semiempirical soap-thickened grease rheology model. Circumferential temperature profiles were measured using a test fixture and journal test specimens of 5.1 cm diameter and 1.9 cm wide over a range of bearing loads (3.8-30 kN) and angular misalignments (from - 0.08° to 0.05°) at 166 r/min rotational speed. The results show that the maximum temperatures in the numerical and experimental profile agree within 5 per cent over the range of loads and misalignments studied.

Original languageEnglish (US)
Pages (from-to)423-435
Number of pages13
JournalProceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
Issue number5
StatePublished - Oct 2004


  • Misaligned grease-lubricated journal bearing
  • Rheology model
  • Thermo-Elastohydrodynamic model

ASJC Scopus subject areas

  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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