Association Rule-Based Feature Mining for Automated Fault Diagnosis of Rolling Bearing

Table 6

Representative features of different defects.

Defect types	Related features		Representative features
	Time domain	Frequency domain
Inner race	xSD, xRMS, xRAxK, xKC	fBSF, fBPFI	fBPFI
Outer race	xSD, xRMS, xRA, xCF	fBPFO	fBPFO
Ball	xRA	fBSF	fBSF