Research Article
Roller Bearing Fault Diagnosis Based on Adaptive Sparsest Narrow-Band Decomposition and MMC-FCH
Table 4
Descriptions of the experimental data sets.
| Fault class | Fault severity | Defect size (in.) | Number of data sets | Class label |
| Normal | No fault | 0 | 30 | 1 | Ball fault | Slight | 0.007 | 30 | 2 | Ball fault | Moderate | 0.014 | 30 | 3 | Ball fault | Severe | 0.021 | 30 | 4 | Inner race fault | Slight | 0.007 | 30 | 5 | Inner race fault | Moderate | 0.014 | 30 | 6 | Inner race fault | Severe | 0.021 | 30 | 7 | Outer race fault | Slight | 0.007 | 30 | 8 | Outer race fault | Moderate | 0.014 | 30 | 9 | Outer race fault | Severe | 0.021 | 30 | 10 |
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