Rotor assembly
10.2 Rotor Assembly
A bonded NdFeB magnet ring integrated with an injection-molded gear shaft. Produced from our own magnetic powder and offered in six surface-field grades, Z4 to Z9.
- Gear design
- Full-tooth or half-tooth
- Color
- Black
- Dark gray
- Light gray
- Dimensions
- Overall height and gear dimensions to customer requirements
- Surface field
- Linearly adjustable capability from 1200 to 2000 GModel-specific ranges are defined per grade.
Technical data
Specifications.
The general standard and the grade-specific limits are listed separately. Where they differ, the grade-specific column applies to Z4–Z9.
Surface magnetic field by grade
| Grade | Surface magnetic field (G) |
|---|---|
| Z4 | 1300–1380 |
| Z5 | 1430–1530 |
| Z6 | 1530–1630 |
| Z7 | 1630–1730 |
| Z8 | 1750–1850 |
| Z9 | 1850–1950 |
Dimensions and performance
- Outside diameter (mm)
- General standard10.15–10.20All grades Z4–Z910.17–10.20
- Overall height
- General standardTo customer requirementsAll grades Z4–Z9To customer requirements
- Magnet ring height (mm)
- General standard8.75–8.85All grades Z4–Z98.75–8.85
- Gear dimension A
- General standardTo customer requirementsAll grades Z4–Z9To customer requirements
- Shaft bore (mm)
- General standard1.01–1.04All grades Z4–Z91.01–1.04
- Surface magnetic field (G)
- General standard1200–1950All grades Z4–Z9See individual grade values
- Pole variation
- General standard<6%All grades Z4–Z9<6%
- Thermal demagnetization
- General standard<5%All grades Z4–Z9<5%
- Magnet ring runout (mm)
- General standard0.05All grades Z4–Z9<0.05
- Gear runout (mm)
- General standard0.03All grades Z4–Z9<0.04
- Salt spray resistance (h)
- General standard36All grades Z4–Z924–48
| Parameter | General standard | All grades Z4–Z9 |
|---|---|---|
| Outside diameter (mm) | 10.15–10.20 | 10.17–10.20 |
| Overall height | To customer requirements | To customer requirements |
| Magnet ring height (mm) | 8.75–8.85 | 8.75–8.85 |
| Gear dimension A | To customer requirements | To customer requirements |
| Shaft bore (mm) | 1.01–1.04 | 1.01–1.04 |
| Surface magnetic field (G) | 1200–1950 | See individual grade values |
| Pole variation | <6% | <6% |
| Thermal demagnetization | <5% | <5% |
| Magnet ring runout (mm) | 0.05 | <0.05 |
| Gear runout (mm) | 0.03 | <0.04 |
| Salt spray resistance (h) | 36 | 24–48 |
Reference values are subject to the approved customer specification. Overall height and gear dimension A are defined according to customer requirements.
Separately from this model, our general production capability allows the surface magnetic field to be adjusted linearly from 1200 to 2000 G. Values in gauss describe surface magnetic field only.
Send us your drawing.
Share your dimensions, magnetic requirements and estimated volumes. Our engineering team will review your project.