Intelligent Fault Diagnosis of Bearing Based on Convolutional Neural Network and Bidirectional Long Short-Term Memory

Table 6

uOttawa experimental sample.

Bearing condition	Variable speed condition	Data length	No. of samples	Class (label)
Healthy state	(i), (ii), (iii), and (iv)	2000	4000	0
Ball fault	(i), (ii), (iii), and (iv)	2000	4000	1
Inner race fault	(i), (ii), (iii), and (iv)	2000	4000	2
Outer race fault	(i), (ii), (iii), and (iv)	2000	4000	3
Comprehensive fault	(i), (ii), (iii), and (iv)	2000	4000	4