Description
28mm BLDC outer rotor, sensorless
| Parameter | Unit | BO2820N2B01-140-12.0 |
|---|---|---|
| Voltage | V | 12.0 |
| Terminal resistance | Ω | 0.14 |
| No-load speed | rpm | 14000 |
| No-load current | A | 0.48 |
| Stall torque | mNm | 698 |
| Stall current | A | 86.3 |
| Nominal torque | mNm | 68.5 |
| Nominal speed | rpm | 10350 |
| Nominal current | A | 9.1 |
| Max. output power | W | 256 |
| Max. efficiency | % | 85.6 |
| Back-EMF constant | mV/rpm | 0.9 |
| Torque constant | mNm/A | 8.1 |
| KV Value | rpm/V | 1168 |
| Speed/torque gradient | rpm/mNm | 20.1 |
| Rotor inertia | g·cm² | 19 |
| Weight | g | 41 |
| Thermal resistance housing-ambient | K/W | 2.3 |
| Thermal resistance winding-housing | K/W | 2 |
| Thermal time constant motor | s | 280 |
| Thermal time constant winding | s | 37 |
| Operating temperature range | °C | -40~+120 |
| Thermal class of winding | °C | 180 |
| Axial play | mm | 0.012 |
| Radial play | mm | 0.008 |
| Axial load dynamic | N | 5 |
| Axial load static | N | 80 |
| Radial load at 3 mm from mounting face | N | 29 |
| No. of pole pairs | 7 | |
| 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.
