Research Article
Dynamics Analysis of Unbalanced Motorized Spindles Supported on Ball Bearings
Table 2
First critical speeds of DX100A-24000/20-type motorized spindle.
| Number of
pole-pairs | Calculation result (rpm) | Measured result
(rpm) | | With MS | Without MS |
| | 1 | 30336.12 | 34710.15 | 32400 | | 2 | 30391.23 | 34710.15 | | | 3 | 30487.51 | 34710.15 | | | 4 | 30621.24 | 34710.15 | |
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