Radially Biased Axial Magnetic Bearings/Motors for Precision Rotary-Axial Spindles
Why this work is in the frame
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Bibliographic record
Abstract
Unlike traditional position holding thrust magnetic bearings, electromagnetic actuators can be advantageously used as both an axial bearing and an in-feed motor in precision machine tools that require only millimeter axial stroke. This paper presents the working principle, design, and analysis of radially biased electromagnetic actuators for precision rotary-axial spindle applications. The analysis results indicate that the radially biased actuator design can offer eight times higher load capacity and 16 times higher force-to-power ratio than conventional horseshoe-type thrust bearings. Experimental results from the constructed rotary-axial spindle prototype demonstrate 5000-N load capacity, 340-N/μm dynamic stiffness, and 1.5-mm axial stroke with 10-nm motion resolution.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it