Analyzing Vibration Mechanism of Angular Contact Ball Bearing with Compound Faults on Inner and Outer Rings

Table 2

Three-factor four-level experimental design.

Serial number	Diameter of damaged area in inner ring/mm	Depth of damaged area in inner ring/mm	Diameter of damaged area in outer ring/mm	Depth of damaged area in outer ring/mm
1	0.1	0.05	0.1	0.05
2	0.1	0.1	0.2	0.1
3	0.1	0.15	0.3	0.15
4	0.2	0.05	0.3	0.1
5	0.2	0.1	0.1	0.15
6	0.2	0.15	0.2	0.05
7	0.3	0.05	0.2	0.15
8	0.3	0.1	0.3	0.05
9	0.3	0.15	0.1	0.1