Description
28mm BLDC outer rotor, sensorless
| Specification | BO2820N2B02-140-24.0 |
|---|---|
| Voltage | 24.0 V |
| Terminal resistance | 0.58 Ω |
| No-load speed | 14000 rpm |
| No-load current | 0.24 A |
| Stall torque | 664 mNm |
| Stall current | 41.2 A |
| Nominal torque | 75.1 mNm |
| Nominal speed | 10680 rpm |
| Nominal current | 4.7 A |
| Max. output power | 244 W |
| Max. efficiency | 85.1 % |
| Back-EMF constant | 1.7 mV/rpm |
| Torque constant | 16.2 mNm/A |
| KV Value | 585 rpm/V |
| Speed/torque gradient | 21.2 rpm/mNm |
| Rotor inertia | 19 g·cm² |
| Weight | 41 g |
| Thermal resistance housing-ambient | 2.3 K/W |
| Thermal resistance winding-housing | 2 K/W |
| Thermal time constant motor | 280 s |
| Thermal time constant winding | 37 s |
| Operating temperature range | -40~+120 °C |
| Thermal class of winding | 180 °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 | 7 |
| Bearings | 2 ball bearings |
| Commutation | Sensorless |
| Protection class | 20 IP |
