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Condition Based Maintenance Fault Database for Testing of Diagnostic and Prognostics Algorithms

Data assembled and prepared on behalf of South Ural State University.

Bearing Fault Dataset

A bearing fault dataset has been provided to facilitate research into bearing analysis. The dataset comprises data from a bearing test rig. The distinguishing feature of a data set is the way it is collected. A wireless sensor that measures linear and angular acceleration is mounted directly on a rotating shaft. The dataset is introduced and first analyzed in the paper.

The linear and angular signals of all five bearings were collected with a sampling frequency of 31.175 kHz with the system operating at 1200 rpm (i.e. at 20 Hz).

The data set comprises the following

  • normal condition
  • fault in inner race
  • fault in outer race
  • fault in ball
  • combination fault

Test bearings with inner race fault (left) and ball fault (right)

Note: The data is stored in a Matlab double-precision, binary format *.mat file. The data structure holds vectors of linear and angular acceleration data.