Table 2.

Summary of XJTU datasets.

	Work condition (RPM, radial force/kN)	Fault type	Sample number
(1-1)	(2100/12)	Normal	800
		Inner race fault	60
(2-1)	(2250/11)	Normal	800
		Ball fault	60
(3-1)	(2400/10)	Normal	800
		Outer race fault	60