Experimental measurement of rolling bearing torque loss in a modified Four-Ball machine: An improved setup

• Type: Article in International Scientific Journal
• Date: 2020

Authors

Jorge Seabra (Author) FEUP; Pedro M. T. Marques (Author) Other; Ramiro C. Martins (Author) Other

Journal

Title: Lubrication Science

Vol. 32 No. 5

Pages: 245-259

ISSN: 0954-0075

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 2 Citations

Other information

Authenticus ID: P-00R-PNZ

DOI: 10.1002/ls.1499

Abstract (EN): This work presents an improved method for the measurement of the rolling bearing torque loss using a modified Four-Ball machine. The new assembly allowed precise and accurate rolling bearing torque loss, while operating at constant temperature, controlled by means of liquid cooling-heating system in which a thermal fluid is carried through the centre of the driving shaft. Several rolling bearing test campaigns are performed, using a fully formulated ISO VG 150 poly-¿-olefin gear oil. The frictional torque loss is measured and compared with models available and the surface roughness of the rolling bearing races is observed using an optical profilometer. © 2020 John Wiley & Sons, Ltd

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 15