A Guide to Measuring Reliability - Mean Time Between Failure (MTBF)

By Ricky Smith, CMRP, IVARA

Most companies do not measure Mean Time Between Failure (MTBF). Yet, it is one of the first and most basic measurements you can use to measure reliability.

What I expect you will find if you measure MTBF would be the locations of some obvious “bad actors” – assets which you should target for reliability improvement. I have always stated, “80% of company’s resources go to 20% of their assets”. The question is, on which 20% do you need to be focusing?

You will be surprised at how easy it is to focus-in on the worst performing assets. I also expect you’ll achieve results quickly due to your organization’s focus changing from emergency repair work and daily distracters to improving reliability on the real problem assets, those causing you your biggest losses.

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