Research Article
Complexity Analysis of Time-Frequency Features for Vibration Signals of Rolling Bearings Based on Local Frequency
Table 1
Parameters of rolling bear.
| | No. | Parameter (unit) | Value |
| | 1 | Number of ball roller z | 9 | | 2 | Diameter of ball roller d (mm) | 7.94 | | 3 | Diameter of rolling bear D (mm) | 39 | | 4 | Contact angle α (°) | 90 |
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