Characterization of tribological properties of greases for industrial circuit breakers

B. Castaños, C. Bazurto, Laura Peña-Parás, D. Maldonado-Cortés, J. Rodríguez-Salinas

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Proper grease selection is essential for the electrical industry to minimize friction and wear between the components of circuit breakers under mechanical contact. In this investigation, the tribological properties of commercially available greases for industrial circuit breakers were evaluated. Three tribological tests were performed: the ITeE-PIB Polish Method for testing lubricants under scuffing conditions (extreme pressure, EP), a four-ball test under ASTM D 2266 (anti-wear, AW), and a ball-on-disk test based on ASTM G-99. The worn materials were characterized with an optical 3D profilometer measurement system and a scanning electron microscope (SEM). Additionally, selected greases with the best tribological performance were tested on a testing bench intended for circuit breakers, according to electrical safety standards, which validated the results obtained in the laboratory.

Original languageEnglish
Pages (from-to)559-565
Number of pages7
JournalTribology in Industry
Issue number4
Publication statusPublished - 1 Jan 2017

Bibliographical note

Publisher Copyright:
© 2017 Published by Faculty of Engineering.

Copyright 2017 Elsevier B.V., All rights reserved.

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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