An Evaporation Model for Base Oil from Grease-Lubricated Rolling Bearings including Breathing

Pramod Shetty*, Robert Jan Meijer, Piet M. Lugt

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)
12 Downloads (Pure)

Abstract

The film thickness decay of grease-lubricated bearings is determined by a loss of lubricant from the bearing. One of these loss mechanisms is base oil evaporation. In this article, a model is presented for evaporation where the volatiles leave the bearing by breathing. The model is applied to a typical drive cycle where the temperature is varied in time. The impact of the volatility of base oils and quality of sealing on the evaporation losses can be quantified with this model.

Original languageEnglish
Pages (from-to)891-902
Number of pages12
JournalTribology transactions
Volume64
Issue number5
Early online date4 Aug 2021
DOIs
Publication statusPublished - 2021

Keywords

  • bearings
  • Evaporation
  • grease
  • oil loss
  • vapor pressure
  • UT-Hybrid-D

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