Diagnosing gearbox faults with vibration, oil, and wear particle analysis

Jason Tranter, Mobius Institute


Gearboxes are often critical components, therefore it is critically important that damage to the gears (and the bearings) is detected at the earliest possible opportunity. Focusing on vibration analysis (including enveloping, time waveform analysis, circle plots, time synchronous analysis, and autocorrelation), oil analysis (including an overview of how oil analysis can be used to detect the root cause of the gear failure), and wear particle analysis, this highly animated presentation will describe the common failure mechanisms and explain how these technologies provide an early warning. Two brief case studies will be presented that utilize these technologies.


Jason Tranter is the founder and Managing Director of Mobius Institute.  Jason is the author of the majority of the Mobius Institute training courses and e-learning products covering reliability improvement, condition monitoring and precision maintenance topics.  Titles include iLearnReliability, iLearnVibration, iLearnAlignment, and iLearnBalancing.  Vibration analysis classroom and distance learning courses follow ISO 18436-2 Category I – IV.

Mobius Institute has training centers in over 60 countries, and also provides certification through the ISO/IEC 17024 accredited organization, Mobius Institute Board of Certification.  Mobius has direct offices in Australia, Europe and the United States with over 20 employees.

Mr. Tranter has been involved with this field of work since 1984.  He has worked with people in a variety of industries to help improve reliability and implement successful condition monitoring programs.  He is an Australian delegate to ISO TC 108/SC5 “Condition monitoring and diagnostics of machine systems”.

Jason has written numerous articles and presented at conferences around the world. Jason has also been awarded “best presenter” at numerous conferences, including at the previous two Euromaintenance conferences. Thousands of people have viewed Jason’s Webinars and YouTube videos on the Mobius YouTube channel.