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