Film Thickness of Mechanically Worked Lubricating Grease at Very Low Speeds - Archive ouverte HAL Access content directly
Journal Articles Tribology Transactions Year : 2014

Film Thickness of Mechanically Worked Lubricating Grease at Very Low Speeds

Abstract

Several different types of commercially available greases, aged in a roll stability tester, have been tested in a ball-on-disc machine where the film thickness was measured using the interferometry method. The grease film thickness at very low speed is thicker than the base oil film thickness due to the contribution of the thickener in this regime, which practically vanishes at higher speeds. The (mechanical) aging process reduces the thickener material, decreasing the grease film thickness at very low speeds (entrainment speed less than 0.01 m/s) with aging time, whereas no significant difference was found at higher speeds where the grease film thickness still approached the calculated base oil film thickness.
Not file

Dates and versions

hal-01083006 , version 1 (14-11-2014)

Identifiers

Cite

Cen Hui, P.M. Lugt, Guillermo E. Morales-Espejel. Film Thickness of Mechanically Worked Lubricating Grease at Very Low Speeds. Tribology Transactions, 2014, 57 (6), pp.1066-1071. ⟨10.1080/10402004.2014.933936⟩. ⟨hal-01083006⟩
45 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More