Free Engineering Tool #227
MTBF / MTTR / Availability Calculator
Calculate Mean Time Between Failures, Mean Time To Repair and Availability.
Results
Availability
Mean Time Between Failures: average operating time between failures. MTBF = total operating time / number of failures.
Mean Time To Repair: average time to restore a system after failure. MTTR = total repair time / number of failures.
World-class: >99%. Good: 95-99%. Average: 90-95%. Below 90% needs improvement.
λ = 1/MTBF (failures per hour). Higher MTBF means lower failure rate.
No. MTBF is a statistical average. Individual failures can occur at any time.
Professional instruments for industrial applications.
Nikolai Shelkovenko
Nikolai Shelkovenko is a vibration analysis engineer and the founder and CEO of Vibromera. For more than 15 years he has balanced rotating equipment in the field rather than on a test bench: mulchers, industrial fans, crushers, centrifuges, shafts and spindles. That work is what the Balanset instruments grew out of — they were designed as a tool a specialist can carry to the machine and use alone, on site, not as laboratory equipment. Vibromera was founded in 2017 and has been based in Porto, Portugal, since 2023. Development, assembly and support of the Balanset line all happen here. The flagship instrument is the Balanset-1A, a portable analyser for single- and two-plane balancing and for vibration diagnostics. Nikolai is personally involved in customer support, in working through difficult balancing cases and in the development of the software. He works with customers worldwide, in any language.
