Research Article
Reliability Test Rig of the Motorized Spindle and Improvements on Its Ability for High-Speed and Long-Term Tests
Table 2
Conditions of axis orbits’ tests.
| Conditions | Speed (r/min) | Direction | Angle error (mm/mm) | Radial error (mm) | Description |
| Condition 1 | 1000 | Vertical | −0.01/100 | −0.01 | Good alignment | Horizontal | −0.02/100 | +0.01 | 5000 | Vertical | −0.01/100 | −0.01 | Horizontal | −0.02/100 | +0.01 |
| Condition 2 | 1000 | Vertical | −0.02/100 | −0.06 | Radial misalignment | Horizontal | −0.01/100 | −0.02 | 5000 | Vertical | −0.02/100 | −0.06 | Horizontal | −0.01/100 | −0.02 |
| Condition 3 | 1000 | Vertical | −0.02/100 | −0.02 | Angular misalignment | Horizontal | −0.16/100 | −0.01 | 5000 | Vertical | −0.02/100 | −0.02 | Horizontal | −0.16/100 | −0.01 |
| Condition 4 | 1000 | Vertical | −0.09/100 | −0.04 | Synthesized misalignment | Horizontal | −0.89/100 | +0.02 | 5000 | Vertical | −0.09/100 | −0.04 | Horizontal | −0.89/100 | +0.02 |
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