Mean Time Between Failures (MTBF)
Category: Analytical
Measures the average time elapsed between two consecutive equipment failures.
What it Measures ?
How long equipment runs before breaking down.
Relevant StakeHolders
Reliability Engineer, Maintenance Team
Why it Matters ?
Improves equipment reliability.
In-depth Use Case / Real-world Example
MTBF is used to predict the reliability of machinery by calculating the average time between failures. For example, if a machine operates for 1,000 hours before breaking down, MTBF is 1,000 hours. A higher MTBF indicates greater equipment reliability and lower maintenance costs. Companies can use MTBF to schedule maintenance proactively and avoid costly breakdowns. It also helps in selecting reliable equipment and understanding the long-term costs of machine ownership.
Sample Formula
Total Operating Time / Number of Failures