Oil redistribution and replenishment on stationary bearing inner raceway

Min Gao; He Liang; Wenzhong Wang; Hongbai Chen

doi:10.1016/j.triboint.2021.107315

Oil redistribution and replenishment on stationary bearing inner raceway

Min Gao, He Liang, Wenzhong Wang^*, Hongbai Chen

^*Corresponding author for this work

School of Mechanical Engineering

Beijing Institute of Technology

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

11 Citations (Scopus)

Abstract

The oil redistribution in bearing during rest will greatly influence the bearing lubrication when restart. This paper presents a theoretical model to predict oil redistribution and replenishment induced by surface tension and gravity in a stationary bearing. Experiments are conducted to validate the model. The influence of different factors including oil viscosity, surface tension coefficient and initial oil layer thickness on replenishment is investigated, and the contribution of gravity and surface tension on oil migration is explored. It shows that replenishment in the stationary bearing can be positively influenced by the decrease of viscosity, the increase of surface tension coefficient and the initial oil layer.

Original language	English
Article number	107315
Journal	Tribology International
Volume	165
DOIs	https://doi.org/10.1016/j.triboint.2021.107315
Publication status	Published - Jan 2022

Keywords

Gravity effects
Replenishment
Stationary bearing
Thin layer flow

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10.1016/j.triboint.2021.107315

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title = "Oil redistribution and replenishment on stationary bearing inner raceway",

abstract = "The oil redistribution in bearing during rest will greatly influence the bearing lubrication when restart. This paper presents a theoretical model to predict oil redistribution and replenishment induced by surface tension and gravity in a stationary bearing. Experiments are conducted to validate the model. The influence of different factors including oil viscosity, surface tension coefficient and initial oil layer thickness on replenishment is investigated, and the contribution of gravity and surface tension on oil migration is explored. It shows that replenishment in the stationary bearing can be positively influenced by the decrease of viscosity, the increase of surface tension coefficient and the initial oil layer.",

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AU - Gao, Min

AU - Liang, He

AU - Wang, Wenzhong

AU - Chen, Hongbai

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Y1 - 2022/1

N2 - The oil redistribution in bearing during rest will greatly influence the bearing lubrication when restart. This paper presents a theoretical model to predict oil redistribution and replenishment induced by surface tension and gravity in a stationary bearing. Experiments are conducted to validate the model. The influence of different factors including oil viscosity, surface tension coefficient and initial oil layer thickness on replenishment is investigated, and the contribution of gravity and surface tension on oil migration is explored. It shows that replenishment in the stationary bearing can be positively influenced by the decrease of viscosity, the increase of surface tension coefficient and the initial oil layer.

AB - The oil redistribution in bearing during rest will greatly influence the bearing lubrication when restart. This paper presents a theoretical model to predict oil redistribution and replenishment induced by surface tension and gravity in a stationary bearing. Experiments are conducted to validate the model. The influence of different factors including oil viscosity, surface tension coefficient and initial oil layer thickness on replenishment is investigated, and the contribution of gravity and surface tension on oil migration is explored. It shows that replenishment in the stationary bearing can be positively influenced by the decrease of viscosity, the increase of surface tension coefficient and the initial oil layer.

KW - Gravity effects

KW - Replenishment

KW - Stationary bearing

KW - Thin layer flow

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SN - 0301-679X

VL - 165

JO - Tribology International

JF - Tribology International

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ER -

Oil redistribution and replenishment on stationary bearing inner raceway

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Keywords

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