Mean Time Between Breakdowns


Mean Time Between Breakdowns (MTBB) is a metric used to evaluate the reliability and performance of a system or equipment. It represents the average time duration between consecutive failures or breakdowns. In general, a higher MTBB value indicates better reliability and less downtime for a system.

Key Takeaways

  1. Mean Time Between Breakdowns (MTBB) is a performance metric used to assess the reliability and maintainability of machinery, electronic systems, or other equipment. It represents the average time period between consecutive failures of a system.
  2. MTBB is an important indicator for organizations to monitor and improve, as it helps in optimizing maintenance schedules, minimizing downtime, and reducing the overall costs associated with equipment failures, repairs, and replacements.
  3. A higher MTBB value implies greater reliability, as the system experiences fewer breakdowns and requires less frequent maintenance. However, this does not necessarily mean that the system is less prone to catastrophic failures, as MTBB does not account for the severity of breakdowns.


The term Mean Time Between Breakdowns (MTBB) is important because it serves as a crucial metric to assess the reliability and efficiency of a system or a piece of equipment, particularly in technology-related industries.

By calculating the average time duration between system breakdowns or failures, it enables manufacturers, operators, and users to predict the performance and longevity of their technology, maintain optimal functionality, plan for appropriate service intervals, and thus minimize downtime and costs associated with repairs or replacements.

Furthermore, MTBB provides valuable insights into the design and manufacturing processes, helping identify potential areas for improvement, enhancing user satisfaction, and promoting a competitive edge in the market.


Mean Time Between Breakdowns (MTBB) serves as a crucial metric in industries and organizations to evaluate the efficiency and reliability of machines or systems. By determining the average time elapsed between breakdowns, businesses can assess the overall performance of their components, identify patterns or trends in equipment failures, and consequently reduce downtime.

Management teams use this information to minimize disruptions in production and create a more streamlined operation. MTBB enables companies to identify areas of improvement, which ultimately boost productivity, enhance customer satisfaction, and increase profitability.

Furthermore, MTBB allows organizations to fine-tune their maintenance and replacement strategies. By monitoring the patterns of breakdowns, steps can be taken proactively to address these issues before they evolve into more significant problems, thereby extending the lifespan of machinery and saving on overall repair costs.

Additionally, a better understanding of MTBB aids in making well-informed decisions about investing in new technologies or upgrading existing systems. In conclusion, Mean Time Between Breakdowns is a vital tool to enhance not only the effectiveness of industrial processes but also provide support for long-term planning and equipment investments.

Examples of Mean Time Between Breakdowns

Mean Time Between Breakdowns (MTBB) is a performance metric used to evaluate the reliability and durability of a system or equipment, reflecting the average time between failures or malfunctions. Here are three real-world examples:

Manufacturing Plant: An automobile production facility uses various machines and robotics to assemble cars. The plant management monitors the MTBB of critical machinery to ensure that equipment runs efficiently and to schedule timely maintenance. For instance, if the MTBB for a conveyor system is 10,000 hours, the plant implements routine checks and maintenance based on this metric to minimize production downtime.

Aircraft Maintenance: Airlines must adhere to strict safety regulations, which includes closely monitoring the MTBB of aircraft components. For example, an airplane turbine engine may have a MTBB of 20,000 flight hours, indicating maintenance crews need to perform inspections, repairs, or replace parts when approaching that threshold to avoid unexpected breakdowns during flights.

Telecommunications Infrastructure: Telecommunication providers rely heavily on their network systems and equipment to deliver stable and fast connections for customers. The MTBB of components such as routers, switches, and transmitters is crucial for providers to maintain reliable service. If a specific part has an MTBB of 40,000 hours, the telecommunications company will use that data to develop a preventive maintenance plan and mitigate the risks of network outages.

FAQ: Mean Time Between Breakdowns

1. What is Mean Time Between Breakdowns (MTBB)?

Mean Time Between Breakdowns (MTBB) is a key performance indicator used to evaluate the reliability of a product, system, or process. It represents the average time between consecutive failures of the system. MTBB is commonly used in industries like manufacturing, transportation, and power generation to predict equipment performance and to plan maintenance schedules.

2. How is MTBB calculated?

MTBB is calculated by dividing the total operating time of the system by the total number of failures during that time. The result is typically reported in hours. The formula is: MTBB = Total Operating Time / Total Number of Failures.

3. What is the difference between MTBB and MTBF?

Mean Time Between Breakdowns (MTBB) and Mean Time Between Failures (MTBF) are closely related, but they differ in their focus. MTBB is used to measure the average time between breakdowns of a system, while MTBF measures the average time between failures, including both repairable and non-repairable failures. MTBF is often considered a more comprehensive metric because it covers all types of failures, not just those resulting in breakdowns.

4. Why is MTBB important?

MTBB is important because it allows for evaluating the reliability and performance of a system or product. By measuring the average time between breakdowns, a business or organization can make informed decisions on how to improve their systems and processes, reduce downtimes, and optimize maintenance activities. Understanding a system’s MTBB assists in predicting equipment failure rates, which directly impacts the cost of operations and maintenance.

5. How can I improve the MTBB of my system?

Improving the MTBB of a system may involve numerous strategies such as regular maintenance, system upgrades, and operator training. Preventative maintenance can extend the life and efficiency of a system, reducing the likelihood of breakdowns. System upgrades can improve performance, and training operators to use equipment properly and recognize warning signs can also help to avoid breakdowns and failures.

Related Technology Terms

  • Reliability Engineering
  • Failure Rates
  • Preventive Maintenance
  • Equipment Lifetime
  • Availability

Sources for More Information


About The Authors

The DevX Technology Glossary is reviewed by technology experts and writers from our community. Terms and definitions continue to go under updates to stay relevant and up-to-date. These experts help us maintain the almost 10,000+ technology terms on DevX. Our reviewers have a strong technical background in software development, engineering, and startup businesses. They are experts with real-world experience working in the tech industry and academia.

See our full expert review panel.

These experts include:


About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

More Technology Terms

Technology Glossary

Table of Contents