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Industrial · Data sources

Equipment Reliability

Degradation, failure observations, operating exposure and maintenance history.

Explore selected organizations, manufacturer libraries and research repositories. Each entry explains what it provides, how to access it and which operating conditions to check.

Source guide · Links reviewed

Data sources & references

5 selected sources · Links to original publishers. This is a curated guide, not an exhaustive directory or a hosted dataset.

Measured laboratory data

NASA PCoE — bearing experiments

Repository entries for IMS bearing experiments and FEMTO accelerated bearing-life tests.

Use it for
Study degradation and prognostics under documented test conditions. Laboratory bearing life is not a general field failure rate.
Operating conditions
Preserve bearing/test-rig identity, speed/load, sensor channel, sample rate and failure criterion. Accelerated laboratory exposure is not ordinary service history.
Where & how to access
Descriptions, citations and dataset links are listed by NASA. Follow the original contributor’s documentation and applicable reuse terms.
Open source ↗
Usage terms & attribution

Follow the selected dataset’s license, required citation and contributor notices. If redistribution terms are not explicit, ask the publisher before reusing files. This page provides links only.

Simulated degradation data

NASA PCoE — C-MAPSS engine benchmarks

Turbofan degradation simulations with sensor channels, operating conditions and fault scenarios.

Use it for
Develop and compare prognostics methods. These are simulated trajectories, not maintenance records from operating aircraft fleets.
Operating conditions
Keep simulation subset, operating regimes, fault modes, sensor units and training/test conventions together; label all trajectories simulated.
Where & how to access
NASA lists simulation dataset downloads and citations. Use the relevant entry’s documentation and terms; keep simulated data labeled.
Open source ↗
Usage terms & attribution

Follow the selected dataset’s license, required citation and contributor notices. If redistribution terms are not explicit, ask the publisher before reusing files. This page provides links only.

Measured laboratory fault data

Case Western Reserve University — Bearing Data Center

Normal and seeded-fault bearing vibration experiments, with sampling and motor-speed information.

Use it for
Practice fault classification and signal analysis. Seeded-fault tests do not directly establish service failure rates.
Operating conditions
Match sensor position, sampling rate, motor load/speed and fault location/size. Do not combine different test setups as a single field-life population.
Where & how to access
Choose the baseline, drive-end or fan-end experiment and review Apparatus/Procedures before downloading the MATLAB files from the university.
Open source ↗
Usage terms & attribution

Follow the selected dataset’s license, required citation and contributor notices. If redistribution terms are not explicit, ask the publisher before reusing files. This page provides links only.

Prognostics benchmarks & research datasets

PHM Society — data challenges and repositories

Links to prognostics and health-management challenge datasets and their task descriptions.

Use it for
Explore fault diagnosis or remaining-life estimation with a benchmark suited to the application.
Operating conditions
Identify whether records are measured or simulated, the failure definition, operating conditions, training/test split and censored life observations. Challenge labels are not general fleet reliability statistics.
Where & how to access
Select a challenge and follow its official repository, readme and evaluation instructions. Registration or access conditions depend on the challenge.
Open source ↗
Usage terms & attribution

Follow the selected dataset’s license, required citation and contributor notices. If redistribution terms are not explicit, ask the publisher before reusing files. This page provides links only.

Manufacturer bearing-life models

NSK — bearing technical calculations

Bearing calculation tools and references for life, fits, speeds and related parameters.

Use it for
Estimate bearing life for specified loads and conditions. Calculated rating life is not an observed maintenance history.
Operating conditions
Check bearing designation, radial/axial load, speed, lubrication, contamination and the life/reliability basis. Keep operating hours and revolutions distinct.
Where & how to access
Open the calculation tool linked from Technical Calculations and select the bearing and study parameters. Refer to the matching catalog for definitions.
Open source ↗
Usage terms & attribution

Manufacturer documents and selection results remain subject to the publisher’s terms and notices. Use the original library; public access or an export option is not a license to republish its tables, curves or software.

Practical use

Use a documented run-to-failure benchmark to practice condition monitoring and remaining-life analysis. For fleet failure-rate estimates, use representative operating exposure and maintenance records rather than transferring accelerated-test results directly.

Check before using the data

  • Define failure, operating exposure, duty cycle, censored observations and maintenance interventions.
  • Keep accelerated laboratory tests, simulations and field histories in separate samples.
  • Match the equipment population and service environment before estimating a rate or applying a life model.

Put the data to work

Use the related studio for calculations, simulations and practical learning.

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