Description
20mm BLDC outer rotor, sensorless
| Specification | BO2015NB2B12-137-5.0 |
|---|---|
| Voltage | 5.0 V |
| Terminal resistance | 0.65 Ω |
| Terminal inductance | 0.063 mH |
| No-load speed | 13700 A |
| No-load current | 0.2 mA |
| Stall torque | 25.4 A |
| Stall current | 7.7 mA |
| Nominal torque | 7.4 mNm |
| Nominal speed | 7940 A |
| Nominal current | 2.40 mA |
| Max. output power | 9.1 W |
| Max. efficiency | 70 % |
| Back-EMF constant | 0.4 mV/rpm |
| Torque constant | 3.4 mNm/A |
| Speed/torque gradient | 539 rpm/mNm |
| Rotor inertia | 6.7 g·cm² |
| Weight | 21 g |
| Thermal resistance housing-ambient | 9.5 K/W |
| Thermal resistance winding-housing | 8 K/W |
| Thermal time constant motor | 354 s |
| Thermal time constant winding | 23 s |
| Operating temperature range | -40~+120 °C |
| Thermal class of winding | 155 °C |
| Axial play | 0.012 mm |
| Radial play | 0.08 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 | 4 |
| Bearings | 2 ball bearings |
| Commutation | Sensorless |
| Protection class | 20 IP |
