Description
40mm BLDC, inner rotor, slotless, Hall sensor
| Specification | B4040NH2B02-420-18.0 |
|---|---|
| Voltage | 18.0 V |
| Terminal resistance | 1.5 Ω |
| No-load speed | 42000 rpm |
| No-load current | 0.168 A |
| Stall torque | 47.7 mNm |
| Stall current | 12 A |
| Nominal torque | 5 mNm |
| Nominal speed | 37000 rpm |
| Nominal current | 1.4 A |
| Max. output power | 52.6 W |
| Max. efficiency | 77.7 % |
| Back-EMF constant | 0.4 mV/rpm |
| Torque constant | 4.0 mNm/A |
| KV Value | 2333.3 rpm/V |
| Speed/torque gradient | 879.7 rpm/mNm |
| Rotor inertia | 20 gcm² |
| Weight | 200 g |
| Thermal resistance housing-ambient | 9 K/W |
| Thermal resistance winding-housing | 2.4 K/W |
| Thermal time constant motor | 1400 s |
| Thermal time constant winding | 20 s |
| Operating temperature range | -40~+120 °C |
| Thermal class of winding | 155 °C |
| Axial play | 2.3 mm |
| Radial play | 0.012 mm |
| Axial load dynamic | 8 N |
| Axial load static | 110 N |
| Radial load at 3 mm from mounting face | 31 N |
| No. of pole pairs | 2 |
| Bearings | 2 ball bearings |
| Protection class | 20 IP |
| Commutation | Hall Sensor |
