Description
12mm BLDC, inner rotor, slotless, sensorless
| Parameter | Unit | B1220N2B03-230-7.4 |
|---|---|---|
| Voltage | V | 7.4 |
| Terminal resistance | Ω | 3.8 |
| No-load speed | rpm | 23000 |
| No-load current | A | 0.1 |
| Stall torque | mNm | 5.3 |
| Stall current | A | 2 |
| Nominal torque | mNm | 1.3 |
| Nominal speed | rpm | 15300 |
| Nominal current | A | 0.57 |
| Max. output power | W | 3.3 |
| Max. efficiency | % | 62 |
| Back-EMF constant | mV/rpm | 0.3 |
| Torque constant | mNm/A | 2.9 |
| KV Value | rpm/V | 3100 |
| Speed/torque gradient | rpm/mNm | 3800 |
| Rotor inertia | gcm² | 0.17 |
| Weight | g | 9.5 |
| Thermal resistance housing-ambient | K/W | 32 |
| Thermal resistance winding-housing | K/W | 5.5 |
| Thermal time constant motor | s | 190 |
| Thermal time constant winding | s | 1.5 |
| Operating temperature range | °C | -40~+100 |
| Thermal class of winding | °C | 155 |
| Axial play | mm | 0.012 |
| Radial play | mm | 0.008 |
| Axial load dynamic | N | 1 |
| Axial load static | N | 25 |
| Radial load at 3 mm from mounting face | N | 6.3 |
| No. of pole pairs | 1 | |
| Bearings | 2 ball bearings | |
| Protection class | IP | 20 |
| Commutation | Sensorless |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.