Publication detail

Study of grease behaviour in a starved Elastohydrodynamically lubricated contact

SVOBODA, P. KOŠŤÁL, D. KUŇÁK, J. KŘUPKA, I.

Original Title

Study of grease behaviour in a starved Elastohydrodynamically lubricated contact

Type

journal article - other

Language

English

Original Abstract

This paper is an experimental study of grease lubrication in a starved elastohydrodynamic lubricated (EHL) contact. Lubricating film thickness is measured with tribological experimental device ball-on-disc using optical interferometry and high speed camera. The lubricants used were commercial greases with a various kinematic viscosities, additives and thickeners formulated for low and high-speed applications. The experiment is aimed at a comparison of results acquired by ball-on-disc device and full scale axial bearing. In addition, this paper also investigates the influence of number of the rolling elements (overrolling time) on the resulting film thickness. Experiments confirm the presence of replenishment mechanism caused by relative motion of the surfaces, which generates base oil flow into the inlet of the contact.

Keywords

grease, starvation, EHD, lubrication

Key words in English

grease, starvation, EHD, lubrication

Authors

SVOBODA, P.; KOŠŤÁL, D.; KUŇÁK, J.; KŘUPKA, I.

RIV year

2014

Released

12. 6. 2014

Publisher

MM Science Journal

Location

Praha

ISBN

1805-0476

Periodical

MM Science Journal

Year of study

2014

Number

June

State

Czech Republic

Pages from

464

Pages to

469

Pages count

6

URL

http://www.mmscience.eu/content/file/MM_Science_2014_06_201405(1).pdf

BibTex

@article{BUT107874,
  author="Petr {Svoboda} and David {Košťál} and Jiří {Kuňák} and Ivan {Křupka}",
  title="Study of grease behaviour in a starved Elastohydrodynamically lubricated contact",
  journal="MM Science Journal",
  year="2014",
  volume="2014",
  number="June",
  pages="464--469",
  issn="1805-0476",
  url="http://www.mmscience.eu/content/file/MM_Science_2014_06_201405(1).pdf"
}