Journal
TRIBOLOGY INTERNATIONAL
Volume 119, Issue -, Pages 419-435Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2017.11.018
Keywords
Axle gear oils; Tribological behaviour; Rolling bearings; Friction torque; Axle efficiency
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Funding
- SciTech - Science and Technology for Competitive and Sustainable Industries [NORTE-01-0145-FEDER-000022]
- Programa Operacional Regional do Norte (NORTE), through Fundo Europeu de Desenvolvimento Regional (FEDER)
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As a part of the main research project within the aim of increasing significantly drive axle efficiency, this work focuses on rolling bearing friction torque lubricated with five fully formulated axle gear oils with different viscosity and different formulations. The lubricant tribological behaviour in different rolling bearings was analyzed. A modified Four-Ball Machine was used to test the rolling bearings. The effect of speed, temperature and axial load on rolling bearing friction torque was assessed. Experimental results for the internal friction torque were validated with an SKF model. Direct comparisons in terms of friction torque between aide gear oils when they are lubricating different rolling bearing types are presented and discussed.
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