Characteristics
| Parameter | Unit | BO4840NH2B01-105-18.0 | BO4840NH2B02-105-24.0 | BO4840NH2B03-105-36.0 |
|---|---|---|---|---|
| Voltage | V | 18.0 | 24.0 | 36.0 |
| Terminal resistance | Ohm | 0.034 | 0.053 | 0.11 |
| No-load speed | rpm | 10500 | 10500 | 10500 |
| No-load current | A | 1.6 | 1.2 | 0.9 |
| Stall torque | mNm | 8614 | 9831 | 10656 |
| Stall current | A | 529.4 | 452.8 | 327.3 |
| Nominal torque | mNm | 423 | 427 | 420 |
| Nominal speed | rpm | 9350 | 9400 | 9440 |
| Nominal current | A | 25.7 | 19.5 | 12.9 |
| Max. output power | W | 2367 | 2701 | 2928 |
| Max. efficiency | % | 89.2 | 89.9 | 89.7 |
| Back-EMF constant | mV/rpm | 1.7 | 2.3 | 3.4 |
| Torque constant | mNm/A | 16.3 | 21.8 | 32.7 |
| KV Value | rpm/V | 583 | 437.5 | 292.0 |
| Speed/torque gradient | rpm/mNm | 1.22 | 1.07 | 0.99 |
| Rotor inertia | g·cm² | 398 | 398 | 398 |
| Weight | g | 267 | 267 | 267 |
| Thermal resistance housing-ambient | K/W | 0.9 | 0.9 | 0.9 |
| Thermal resistance winding-housing | K/W | 1.0 | 1.0 | 1.0 |
| Thermal time constant motor | s | 300 | 300 | 300 |
| Thermal time constant winding | s | 60 | 60 | 60 |
| Operating temperature range | °C | -40~+120 | -40~+120 | -40~+120 |
| Thermal class of winding | °C | 180 | 180 | 180 |
| Axial play | mm | 0.012 | 0.012 | 0.012 |
| Radial play | mm | 0.008 | 0.008 | 0.008 |
| Axial load dynamic | N | 10 | 10 | 10 |
| Axial load static | N | 110 | 110 | 110 |
| Radial load at 3 mm from mounting face | N | 42 | 42 | 42 |
| No. of pole pairs | 7 | 7 | 7 | |
| Bearings | 2 ball bearings | 2 ball bearings | 2 ball bearings | |
| Protection class | IP | 20 | 20 | 20 |
| Commutation | Hall Sensor | Hall Sensor | Hall Sensor |
Applications
UAV
aeromodelling
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
BO4840NH2B
| Parameter | Unit | BO4840NH2B01-105-18.0 |
|---|---|---|
| Voltage | V | 18.0 |
| Terminal resistance | Ohm | 0.034 |
| No-load speed | rpm | 10500 |
| No-load current | A | 1.6 |
| Stall torque | mNm | 8614 |
| Stall current | A | 529.4 |
| Nominal torque | mNm | 423 |
| Nominal speed | rpm | 9350 |
| Nominal current | A | 25.7 |
| Max. output power | W | 2367 |
| Max. efficiency | % | 89.2 |
| Back-EMF constant | mV/rpm | 1.7 |
| Torque constant | mNm/A | 16.3 |
| KV Value | rpm/V | 583 |
| Speed/torque gradient | rpm/mNm | 1.22 |
| Rotor inertia | g·cm² | 398 |
| Weight | g | 267 |
| Thermal resistance housing-ambient | K/W | 0.9 |
| Thermal resistance winding-housing | K/W | 1.0 |
| Thermal time constant motor | s | 300 |
| Thermal time constant winding | s | 60 |
| Operating temperature range | °C | -40~+120 |
| Thermal class of winding | °C | 180 |
| Axial play | mm | 0.012 |
| Radial play | mm | 0.008 |
| Axial load dynamic | N | 10 |
| Axial load static | N | 110 |
| Radial load at 3 mm from mounting face | N | 42 |
| No. of pole pairs | 7 | |
| Bearings | 2 ball bearings | |
| Protection class | IP | 20 |
| Commutation | Hall Sensor |
Applications
UAV
aeromodelling
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
| Parameter | Unit | BO4840NH2B02-105-24.0 |
|---|---|---|
| Voltage | V | 24.0 |
| Terminal resistance | Ohm | 0.053 |
| No-load speed | rpm | 10500 |
| No-load current | A | 1.2 |
| Stall torque | mNm | 9831 |
| Stall current | A | 452.8 |
| Nominal torque | mNm | 427 |
| Nominal speed | rpm | 9400 |
| Nominal current | A | 19.5 |
| Max. output power | W | 2701 |
| Max. efficiency | % | 89.9 |
| Back-EMF constant | mV/rpm | 2.3 |
| Torque constant | mNm/A | 21.8 |
| KV Value | rpm/V | 437.5 |
| Speed/torque gradient | rpm/mNm | 1.07 |
| Rotor inertia | g·cm² | 398 |
| Weight | g | 267 |
| Thermal resistance housing-ambient | K/W | 0.9 |
| Thermal resistance winding-housing | K/W | 1.0 |
| Thermal time constant motor | s | 300 |
| Thermal time constant winding | s | 60 |
| Operating temperature range | °C | -40~+120 |
| Thermal class of winding | °C | 180 |
| Axial play | mm | 0.012 |
| Radial play | mm | 0.008 |
| Axial load dynamic | N | 10 |
| Axial load static | N | 110 |
| Radial load at 3 mm from mounting face | N | 42 |
| No. of pole pairs | 7 | |
| Bearings | 2 ball bearings | |
| Protection class | IP | 20 |
| Commutation | Hall Sensor |
Applications
UAV
aeromodelling
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
BO4840NH2B
| Parameter | Unit | BO4840NH2B03-105-36.0 |
|---|---|---|
| Voltage | V | 36.0 |
| Terminal resistance | Ohm | 0.11 |
| No-load speed | rpm | 10500 |
| No-load current | A | 0.9 |
| Stall torque | mNm | 10656 |
| Stall current | A | 327.3 |
| Nominal torque | mNm | 420 |
| Nominal speed | rpm | 9440 |
| Nominal current | A | 12.9 |
| Max. output power | W | 2928 |
| Max. efficiency | % | 89.7 |
| Back-EMF constant | mV/rpm | 3.4 |
| Torque constant | mNm/A | 32.7 |
| KV Value | rpm/V | 292.0 |
| Speed/torque gradient | rpm/mNm | 0.99 |
| Rotor inertia | g·cm² | 398 |
| Weight | g | 267 |
| Thermal resistance housing-ambient | K/W | 0.9 |
| Thermal resistance winding-housing | K/W | 1.0 |
| Thermal time constant motor | s | 300 |
| Thermal time constant winding | s | 60 |
| Operating temperature range | °C | -40~+120 |
| Thermal class of winding | °C | 180 |
| Axial play | mm | 0.012 |
| Radial play | mm | 0.008 |
| Axial load dynamic | N | 10 |
| Axial load static | N | 110 |
| Radial load at 3 mm from mounting face | N | 42 |
| No. of pole pairs | 7 | |
| Bearings | 2 ball bearings | |
| Protection class | IP | 20 |
| Commutation | Hall Sensor |
Applications
UAV
aeromodelling
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.