Description
14mm BLDC outer rotor, sensorless
| Parameter | Unit | BO1412N2B05-309-7.4 |
|---|---|---|
| Voltage | V | 7.4 |
| Terminal resistance | Ω | 0.4 |
| No-load speed | rpm | 30900 |
| No-load current | A | 0.28 |
| Stall torque | mNm | 41 |
| Stall current | A | 18.00 |
| Nominal torque | mNm | 8 |
| Nominal speed | rpm | 21200 |
| Nominal current | A | 3.4 |
| Max. output power | W | 33 |
| Max. efficiency | % | 76 |
| Back-EMF constant | mV/rpm | 0.23 |
| Torque constant | mNm/A | 2.25 |
| KV Value | rpm/V | 4180 |
| Speed/torque gradient | rpm/mNm | 753 |
| Rotor inertia | gcm² | 0.98 |
| Weight | g | 6 |
| Thermal resistance housing-ambient | K/W | 26.8 |
| Thermal resistance winding-housing | K/W | 0.52 |
| Thermal time constant motor | s | 226 |
| Thermal time constant winding | s | 200 |
| Operating temperature range | °C | -40~+100 |
| Thermal class of winding | °C | 180 |
| Axial play | mm | 0.012 |
| Radial play | mm | 0.008 |
| Axial load dynamic | N | 1.5 |
| Axial load static | N | 37 |
| Radial load at 3 mm from mounting face | N | 12 |
| No. of pole pairs | 6 | |
| Bearings | 2 ball bearings | |
| Commutation | Sensorless | |
| Protection class | IP | 20 |
Applications
UAV
aeromodelling
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.