Friction torque of cylindrical roller thrust bearings lubricated with wind turbine gear oils

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Ramiro C Martins (Autor) FEUP; Carlos M C G Fernandes (Autor) Outra; Jorge H O Seabra (Autor) FEUP

Revista

Título: Tribology International

Vol. 59

Páginas: 121-128

ISSN: 0301-679X

Editora: Elsevier

Indexação

ISI Web of Knowledge - 21 Citações

Scopus - 33 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia mecânica

Outras Informações

ID Authenticus: P-002-08E

DOI: 10.1016/j.triboint.2012.05.030

Abstract (EN): Planetary gearboxes used in wind turbines very often have premature bearing and gear failures, some of them related to the lubricants used. Five fully formulated windmill gear oils with the same viscosity grade and different formulations were selected and characterized. The lubricant tribological behavior in a cylindrical roller thrust bearing was analyzed. A modified four-ball machine was used to assemble the bearings. They were submitted to an axial load and the tests were performed at velocities ranging between 150 and 1500 rpm. Experimental results for the operating temperatures and for the internal friction torque are presented.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8