Imperial College London


Faculty of EngineeringDepartment of Mechanical Engineering

Reader in Mechanical Engineering



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BibTex format

author = {De, Laurentis N and Kadiric, A and Lugt, P and Cann, P},
doi = {10.1016/j.triboint.2015.10.012},
journal = {Tribology International},
pages = {624--632},
title = {The influence of bearing grease composition on friction in rolling/sliding concentrated contacts},
url = {},
volume = {94},
year = {2016}

RIS format (EndNote, RefMan)

AB - This paper presents new results examining the relationship between bearing grease composition and rolling-sliding friction in lubricated contacts. Friction coefficient and lubricating film thickness of a series of commercially available bearing greases and their bled oils were measured in laboratory tribometers. Test greases were selected to cover a wide spectrum of thickener and base oil types, and base oil viscosities. The trends in measured friction coefficients were analysed in relation to grease composition in an attempt to establish the relative influence of individual grease components on friction. Two distinct operating regions with markedly different friction behaviour are identified for each grease. At relatively high speeds the greases behave approximately as their bled/base oils, while in the low speed region the frictional response is very dependent on their thickener type and properties of the lubricating film. Low viscosity, synthetic base oil seems to offer efficiency advantages in the high speed region regardless of thickener used, while the choice of thickener type is significant under low speed conditions.
AU - De,Laurentis N
AU - Kadiric,A
AU - Lugt,P
AU - Cann,P
DO - 10.1016/j.triboint.2015.10.012
EP - 632
PY - 2016///
SN - 0301-679X
SP - 624
TI - The influence of bearing grease composition on friction in rolling/sliding concentrated contacts
T2 - Tribology International
UR -
UR -
VL - 94
ER -