Assessing workability of greased bearings after long-term storage

Autor: Michael Varenberg, Yuri Kligerman, Grigory Halperin, Saad Nakad, Haytam Kasem
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Friction, Vol 7, Iss 5, Pp 489-496 (2018)
Druh dokumentu: article
ISSN: 2223-7690
2223-7704
DOI: 10.1007/s40544-018-0255-1
Popis: Abstract Here, we developed a technique to assess the workability of sealed-for-life greased rolling bearings after a long-term storage. In this framework, we devised a model of equivalent transition between the conditions of natural ageing under daily and seasonally fluctuating temperature, and the conditions of accelerated thermal ageing at a constant high temperature. The tested bearings were thermally aged, and then their steady state friction and outer ring temperature were examined in a custom high-speed spindle. These results were compared to the performance of a reference new bearing tested under the same loading conditions. Our findings suggest that long-term storage can significantly degrade the performance of sealed-for-life greased rolling bearings. However, a proper running-in can substantially deter the ageing-driven degradation of the bearings.
Databáze: Directory of Open Access Journals
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