Coreless DC Motors
A Coreless DC motor from MICROMO differs from conventional, iron rotor DC motors in that they are equipped with an ironless, self-supporting, skew-wound copper coil. Because of this construction, the rotor is very light yielding a low moment of inertia. The rotor also rotates smoothly without cogging.
MICROMO offers the following coreless DC motors:
| Features |
Coreless DC Motors |
Flat Coreless DC Motors |
High Power PMDC Motors |
| Commutation |
Precious Metal or Graphite |
Precious Metal |
Graphite |
| Motor Diameter |
6 ... 38 mm |
15 ... 26 mm |
34 to 100 mm |
| Motor Length |
15 ... 63 mm |
5.2 ... 8.2 mm |
94-202 mm |
| Shaft Diameter |
1.5 ... 6.0 mm |
1.5 mm |
|
| Nominal Voltage |
1,5 ... 48 Volt |
2 ... 12 Volt |
24 ... 180 Volt |
| Speed |
5000 ... 13000 rpm |
5500 ... 10000 rpm |
3000 ... 6000 rpm |
| Continuous Torque |
0.11 ... 110 mNm |
0.05 ... 3.0 mNm |
|
| Links to Data Sheets |
[Coreless DC Motors Data Sheets] |
[Flat Coreless DC Motors Data Sheets] |
[High Power PMDC Motors Data Sheets] |
Benefits of a Coreless DC Motor:
- No magnetic cogging
- High acceleration and deceleration due to the low moment of inertia
- Low electromagnetic interference
- Low inductance
- High efficiency
- Linearity between voltage and speed
- Linearity between load and speed
- Linearity between load and current
- Small torque ripple due to the multi-segment commutator
- Compact design