Grease film evolution in rolling elastohydrodynamic lubrication contacts

verfasst von

Xinming Li, Feng Guo, Gerhard Poll, Yang Fei, Ping Yang

Abstract

Although most rolling element bearings are grease lubricated, the underlying mechanisms of grease lubrication has not been fully explored. This study investigates grease film evolution with glass disc revolutions in rolling elastohydrodynamic lubrication (EHL) contacts. The evolution patterns of the grease films were highly related to the speed ranges and grease structures. The transference of thickener lumps, film thickness decay induced by starvation, and residual layer were recognized. The formation of an equilibrium film determined by the balance of lubricant loss and replenishment was analyzed. The primary mechanisms that dominate grease film formation in different lubricated contacts were clarified.

Organisationseinheit(en)

Institut für Maschinenkonstruktion und Tribologie

Externe Organisation(en)

Qingdao University

Typ

Artikel

Journal

Friction

Band

9

Seiten

179-190

Anzahl der Seiten

12

ISSN

2223-7690

Publikationsdatum

02.2021

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Maschinenbau, Oberflächen, Beschichtungen und Folien

Elektronische Version(en)

https://doi.org/10.1007/s40544-020-0381-4 (Zugang: Offen)