Condition monitoring of electric motor ball bearings for the detection of grease contaminants

2007 ◽  
Vol 40 (1) ◽  
pp. 29-36 ◽  
Author(s):  
N. Tandon ◽  
K.M. Ramakrishna ◽  
G.S. Yadava
Keyword(s):  
Condition Monitoring ◽  
Electric Motor ◽  
Ball Bearings

Detectivity: A combination of Hjorth’s parameters for condition monitoring of ball bearings

2022 ◽  
Vol 164 ◽  
pp. 108247
Author(s):  
Marco Cocconcelli ◽  
Matteo Strozzi ◽  
Jacopo Cavalaglio Camargo Molano ◽  
Riccardo Rubini
Keyword(s):  
Condition Monitoring ◽  
Ball Bearings

scholarly journals Fault Detection and Severity Identification of Ball Bearings by Online Condition Monitoring

2019 ◽  
Vol 66 (10) ◽  
pp. 8136-8147 ◽  
Author(s):  
Osama Abdeljaber ◽  
Sadok Sassi ◽  
Onur Avci ◽  
Serkan Kiranyaz ◽  
Abdelrahman Aly Ibrahim ◽  
...  
Keyword(s):  
Fault Detection ◽  
Condition Monitoring ◽  
Ball Bearings

scholarly journals ENHANCEMENT OF ELECTRIC MOTOR RELIABILITY THROUGH CONDITION MONITORING

2006 ◽  
Vol 39 (7) ◽  
pp. 255-260 ◽  
Author(s):  
Keith E. Holbert ◽  
Kang Lin ◽  
George G. Karady
Keyword(s):  
Condition Monitoring ◽  
Electric Motor

Condition monitoring studies on ball bearings considering solid contaminants in the lubricant

2010 ◽  
Vol 224 (8) ◽  
pp. 1727-1748 ◽  
Author(s):  
V Hariharan ◽  
P S S Srinivasan
Keyword(s):  
Particle Size ◽  
Condition Monitoring ◽  
Experimental Tests ◽  
Solid Particles ◽  
Contaminant Concentration ◽  
Ball Bearings ◽  
Rolling Element Bearings ◽  
Rolling Bearings ◽  
Rolling Element ◽  
Vibration Signatures

Rolling element bearings are common in any rotating machinery. They are subject to failure under continuous running. Therefore they have received a great deal of attention in the field of condition monitoring. In rolling element bearings, contamination of lubricant grease by solid particles is one of the several reasons for an early bearing failure. In this context, this article investigates the effect of contamination of lubricant by solid particles on the dynamic behaviour of rolling bearings. Silica powder at three concentration levels and different particle sizes was used to contaminate the lubricant. Experimental tests have been performed on the ball bearings lubricated with grease, and the trends in the amount of vibration affected by the contamination of the grease were determined. The contaminant concentration as well as the particle size is varied. Vibration signatures were analysed in terms of root mean square (RMS) values. From the results, some fruitful conclusions are made about the bearing performance. The effects of contaminant and the bearing vibration are studied for both good and defective bearings. The results show significant variation in the RMS velocity values on varying the contaminant concentration and particle size.

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