Bearing; Defect; Intelligent defect detection

Sensors (VSA001) are used to capture the vibration signals on the bearing (LDK UER20), and a sampling frequency is 25.6 KHz. Samples are collected by a interval of 60 seconds, the length of each sampling is 0.1 seconds, and each sample includes 2560 signals. Multiple sets of vibration signals in normal condition are collected at various time intervals to facilitate model fine-tuning, with a representation of the practical operating conditions. For ease of use, the data file format is .csv.

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The BD-DET is obtained by professional industrial cameras equipped with a ring light source, with a resolution of 2456×2048. The basic structure of the bearing includes inner and outer rings, a cage, and a sealing cover. Defects are mainly concentrated in the sealing cover area, and are divided into two types: scratches and presses. During the data acquisition process, some data only contain one type of defect, either scratches or presses, while the remaining data contain a mixture of the two defects.

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