Research Article
Fault Diagnosis of Subway Traction Motor Bearing Based on Information Fusion under Variable Working Conditions
| | Speed (r/min) | Inner ring (kN) | Outer ring (kN) | Rolling element (kN) | | Crack | Pitting | Crack | Crack | Pitting | Crack |
| | 800 | 5 | 5 | 5 | 5 | 5 | 5 | | 800 | 7 | 7 | 7 | 7 | 7 | 7 | | 800 | 9 | 9 | 9 | 9 | 9 | 9 | | 1600 | 5 | 5 | 5 | 5 | 5 | 5 | | 1600 | 7 | 7 | 7 | 7 | 7 | 7 | | 1600 | 9 | 9 | 9 | 9 | 9 | 9 | | 2400 | 5 | 5 | 5 | 5 | 5 | 5 | | 2400 | 7 | 7 | 7 | 7 | 7 | 7 | | 2400 | 9 | 9 | 9 | 9 | 9 | 9 |
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