The Mechanism of Lubrication in Low Speed Rolling Contacts

[+] Author and Article Information
K. Holmberg

Laboratory of Engineering Production Technology, Technical Research Centre of Finland, Espoo 02150, Finland

J. Tribol 111(4), 703-707 (Oct 01, 1989) (5 pages) doi:10.1115/1.3261998 History: Received February 16, 1989; Online October 29, 2009


The mechanism of lubrication in low speed rolling and sliding contacts was investigated. It was found to be a combination of the following three effects: the chemical formation of boundary lubrication films on the surfaces, the creation of hydrostatic pressure in the lubricant trapped by the surface topography, and the squeeze effect of lubricant in grooves formed by the surface topography. The three different effects were recognized by friction measurements in a four-disk machine. The results indicate that the way in which the surface topography forms dents and grooves influences the flow behavior of the lubricant in the contact. Thus both the surface topography and the viscosity of the lubricant are important parameters affecting friction and wear even in low speed rolling contacts where no hydrodynamic wedge effect is expected to occur.

Copyright © 1989 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In