Remaining Useful Life Prediction and Fault Diagnosis of Rolling Bearings Based on Short-Time Fourier Transform and Convolutional Neural Network

Table 2

Different fault samples and label configuration.

Classification	Training sample set	Testing sample set	Data set label
Normal signal	768	192	1
Inner ring failure	768	192	2
Outer ring failure	768	192	3
Rolling element failure	768	192	4
Total	3072	768	—