Pitting detection in worm gearboxes with vibration analysis

Faris Elasha, David Mba, Cristobal Ruiz-Carcel

Research output: Chapter in Book/Report/Conference proceedingConference proceedingpeer-review

3 Citations (Scopus)


Diagnostics of worm gearboxes are challenged by lack of research in this field; vibration analysis is rarely employed for the condition evaluation of worm gears due to the inherent challenges involved. However, these gears are commonly used in many applications such as escalators, mills and conveyors and significant cost may arise from their maintenance. This paper aims to apply various vibration analysis techniques to identify faults within worm gearboxes. The conditions of three different worm gearboxes were assessed. Various vibration signal analysis techniques including FM4*, and spectral kurtosis and enveloping were employed to identify the presence of defects within the worm gearboxes. The analysis techniques applied were able to present fault features which indicated high levels of scratchinginduced vibration, confirming profile damage (pitting) of Gearbox A worm wheel teeth. Among the employed techniques; FM4* shows high response to the worm gears pitting. In addition the results show sensitivity to the direction of vibration measurement.

Original languageEnglish
Title of host publicationVibration Engineering and Technology of Machinery
Subtitle of host publicationProceedings of VETOMAC X, 2014, held at the University of Manchester, UK, September 9–11, 2014
EditorsJyoti K Sinha
Place of PublicationCham
Number of pages11
ISBN (Electronic)978-3-319-09918-7
ISBN (Print)978-3-319-09917-0
Publication statusPublished - 2015
Event10th International Conference on Vibration Engineering and Technology of Machinery - Manchester, United Kingdom
Duration: 9 Sep 201411 Sep 2014


Conference10th International Conference on Vibration Engineering and Technology of Machinery
Abbreviated titleVETOMAC 2014
CountryUnited Kingdom

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering

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