Important updata 2025-05-19. The second column of the file represents speed. However, since we collected the data at a constant speed, this column is redundant and holds no meaningful value. You can ignore it. The correct speed is indicated in the filename.
We released an open-source gearbox failure dataset.
We hope this dataset can benefit your research
data link: https://pan.quark.cn/s/c9ddae3ac768
This dataset comprises vibration signals from gearbox in three different health states under four distinct operating conditions.
These datasets are publicly available, and anyone can use them to validate diagnosis algorithms for gearbox. Publications making use of the HUSTgearbox datasets are requested to cite the following paper.
Chao Zhao, Enrico Zio, Weiming Shen, Domain Generalization for Cross-Domain Fault Diagnosis: an Application-oriented Perspective and a Benchmark Study, Reliability Engineering and System Safety (2024), doi: https://doi.org/10.1016/j.ress.2024.109964.
Fig. 1. (a) Test rig of HUSTgearbox dataset.
The gearbox fault tests were conducted using a Spectra-Quest Mechanical Fault Simulator, as depicted in Fig. 1.
From left to right on the test rig are speed control, motor, acceleration sensor, gearbox, and data acquisition board.
The gearbox in three health states is illustrated in Fig. 2,
(1) Normal,
(2) Broken tooth,
(3) Missing tooth.
It’s important to note that all faults are artificially preset.
Fig. 2. Photographs of the failure gears.
Fig. 3 display the tested gearbox, and its details are listed as following:
Ratio: 1.5:1
Gearbox Model: Hub City M2
Pitch Angle Gear: 56°19’
Pitch Angle Pinion: 33° 41’
Pressure Angle for Gear and Pinion: 20°
Material: Forged steel
Backlash tolerance: 0.001-0.005 inches
Pitch diameter pinion: 1.125 inches
Pitch diameter gear: 1.6875 inches
Number teeth pinion: 18
Number teeth gear: 27
Pinion bearing: NSK 6202 (1 bearing)
Gear bearing: (2 bearings)
A total of 4 different operating conditions were set in experiments. The operating conditions (rotating speed and load) include:
- 20 Hz and 0.113Nm
- 25 Hz and 0.226Nm
- 30 Hz and 0.339Nm
- 35 Hz and 0.452Nm
The rotating speed is adjusted by the speed control, and the load is regulated by the load control device. Fig. 4 illustrates the load control device.
The sampling frequency is set to 25.6 kHz.
A total of 262144 data points (i.e. 10.2s) are recorded for each sampling.
The raw data file comprises 12 files (3 health states multiplied by 4 working conditions), each in TEXT format.
For instance, the filename " B_20_1 " indicates broken tooth fault under the 20 Hz and 1×0.113 Nm working condition.
The health states are represented by the following codes:
H: Healthy
B: Broken tooth
M: Missing tooth
If you have any questions or suggestions, do not hesitate to contact:
Mr. Chao Zhao, zhaochao734@hust.edu.cn