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Friction reduction in rolling bearing by using polymer additives
Author(s) -
Bercea Maria,
Bercea Mihai
Publication year - 2009
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.97
Subject(s) - polymer , base oil , materials science , base (topology) , adsorption , bearing (navigation) , mineral oil , polyethylene , reduction (mathematics) , friction torque , composite material , macromolecule , torque , metallurgy , chemistry , thermodynamics , organic chemistry , scanning electron microscope , mathematical analysis , biochemistry , geometry , mathematics , cartography , physics , geography
The friction torque on the outer ring of a tapered roller bearing has been experimentally measured for a mineral oil (base oil), as well as for samples of the base oil additived with low‐density polyethylene. The data show an important reduction of friction by introducing the polymer into the base oil due to the film formed by the adsorption of macromolecular coils on the solid surface. The effectiveness of macromolecular additive contribution to friction behaviour is described in terms of polymer efficiency, which shows maximum values at low polymer concentrations. Copyright © 2009 John Wiley & Sons, Ltd.