Table 2.

The number of training and testing datasets and the descriptions of fault scenarios: CWRU dataset.

Bearing State	Fault Location	Train Number	Test Number	Characteristic Frequency (Hz)
Health	/	50	188	29.95
Fault 1	inner ring	50	68	162.1852
Fault 2	rolling element	50	69	141.0907667
Fault 3	outer ring	50	69	107.305

All the vibration signals were collected under the same motor loads at 1797 rpm and 0 HP.