Grease lubrication - Wear behavior of gears lubricated with NLGI 00 greases at low speeds

Hansjoerg Schultheiss, Thomas Tobie, Klaus Michaelis, Karsten Stahl

Research output: Contribution to conferencePaperpeer-review

Abstract

Greases are often used to lubricate gears running at low circumferential speeds in open gear drives. At low circumferential speeds wear is often the limiting factor to gear lifetime. A thorough knowledge of the effect of different grease parameters on wear behavior is therefore a prerequisite to the selection of a grease to effectively reduce gear wear. The influence of different grease parameters on the wear of case carburized gears was therefore investigated in a modified wear test based on the standard DGMK low speed wear test for gear oils at a circumferential speed of vt = 0.05 mis. NLGI 00 greases with base oil viscosities from 70 - 1200 mm2/s were tested. Base oil type and base oil viscosity seem to have only a minor effect on the wear behavior under boundary lubrication conditions. On the other hand, the additive type plays an important role in the wear behavior. :.

Original languageEnglish
Pages124-127
Number of pages4
StatePublished - 2013
EventSociety of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2013 - Detroit, MI, United States
Duration: 5 May 20139 May 2013

Conference

ConferenceSociety of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2013
Country/TerritoryUnited States
CityDetroit, MI
Period5/05/139/05/13

Keywords

  • Bench wear tests
  • Gears: Gears (general)
  • Greases
  • Lubricants
  • Wear

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