Description
20mm BLDC, inner rotor, slotless, sensorless
| Specification | B2040N2B03-67-9.0 |
|---|---|
| Voltage | 9.0 V |
| Terminal resistance | 2.5 Ω |
| No-load speed | 6700 rpm |
| No-load current | 0.2 A |
| Stall torque | 41.2 mNm |
| Stall current | 3.6 A |
| Nominal torque | 10.2 mNm |
| Nominal speed | 4300 rpm |
| Nominal current | 1.1 A |
| Max. output power | 7.2 W |
| Max. efficiency | 58 % |
| Back-EMF constant | 1.3 mV/rpm |
| Torque constant | 12.1 mNm/A |
| KV Value | 7444.4 rpm/V |
| Speed/torque gradient | 162.7 rpm/mNm |
| Rotor inertia | 2 gcm² |
| Weight | 55 g |
| Thermal resistance housing-ambient | 16 K/W |
| Thermal resistance winding-housing | 3.5 K/W |
| Thermal time constant motor | 620 s |
| Thermal time constant winding | 4 s |
| Operating temperature range | -40~+100 °C |
| Thermal class of winding | 155 °C |
| Axial play | 0.012 mm |
| Radial play | 0.008 mm |
| Axial load dynamic | 5 N |
| Axial load static | 80 N |
| Radial load at 3 mm from mounting face | 29 N |
| No. of pole pairs | 1 |
| Bearings | 2 ball bearings |
| Protection class | 20 IP |
| Commutation | Sensorless |
