Description
32mm 12V flat BLDC motor, sensorless
| Specification | BF3211NB2B02-145-12.0 |
|---|---|
| Voltage | 12 V |
| Terminal resistance | 4.2 Ω |
| Terminal inductance | 0.27 mH |
| No-load speed | 14500 rpm |
| No-load current | 0.1 A |
| Stall torque | 21.0 mNm |
| Stall current | 2.9 A |
| Nominal torque | 8.1 mNm |
| Nominal speed | 6163 rpm |
| Nominal current | 1.224 A |
| Max. output power | 7.99 W |
| Max. efficiency | 66 % |
| Back-EMF constant | 0.8 mV/rpm |
| Torque constant | 7.6 mNm/A |
| Speed/torque gradient | 689.6 rpm/mNm |
| Rotor inertia | 12.4 g·cm² |
| Weight | 27 g |
| Thermal resistance housing-ambient | 6 K/W |
| Thermal resistance winding-housing | 5 K/W |
| Thermal time constant motor | 450 s |
| Thermal time constant winding | 224 s |
| Operating temperature range | -40~+120 °C |
| Thermal class of winding | 155 °C |
| Axial play | 0.01 mm |
| Radial play | 0.008 mm |
| Axial load dynamic | 8 N |
| Axial load static | 85 N |
| Radial load at 3 mm from mounting face | 26 N |
| No. of pole pairs | 4 |
| Bearings | 2 ball bearings |
| Commutation | Sensorless |
| Protection class | 20 IP |
Applications
precision visual equipment