Multiple-Fault Diagnosis Method Based on Multiscale Feature Extraction and MSVM_PPA

Table 3

Bearing fault data.

Number	Bearing condition	Diameter/mm
1	Healthy	—
2	Inner-race	0.178
3	Rolling-element	0.178
4	Outer-race	0.178
5	Inner-race	0.356
6	Rolling-element	0.356
7	Outer-race	0.356
8	Inner-race	0.533
9	Rolling-element	0.533
10	Outer-race	0.533