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

Pramod Shetty; Robert Jan Meijer; Piet M. Lugt

doi:10.1080/10402004.2021.1943088

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

Surface Technology and Tribology

Research output: Contribution to journal › Article › Academic › peer-review

9 Citations (Scopus)

486 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 language	English
Pages (from-to)	891-902
Number of pages	12
Journal	Tribology transactions
Volume	64
Issue number	5
Early online date	4 Aug 2021
DOIs	https://doi.org/10.1080/10402004.2021.1943088
Publication status	Published - 2021

Keywords

Bearings
Evaporation
Grease
Oil loss
Vapor pressure
UT-Hybrid-D

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10.1080/10402004.2021.1943088Licence: CC BY-NC-ND

ArticleFinal published version, 2.53 MBLicence: CC BY-NC-ND

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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.",

keywords = "Bearings, Evaporation, Grease, Oil loss, Vapor pressure, UT-Hybrid-D",

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N2 - 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.

AB - 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.

KW - Bearings

KW - Evaporation

KW - Grease

KW - Oil loss

KW - Vapor pressure

KW - UT-Hybrid-D

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ER -

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

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Keywords

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