The BO4840NH2B family features 48mm BLDC outer rotor motors with integrated Hall sensors for enhanced commutation and precise speed control. Designed for demanding applications, these motors offer robust performance, compact dimensions, and versatility. Ideal for UAVs, automation equipment, power tools, and smart home devices, they support customizable shaft lengths, gear heads, encoders, and more for tailored motion solutions.
| Parameter | Unit | BO4840NH2B01-105-18.0 | BO4840NH2B02-105-24.0 | BO4840NH2B03-105-36.0 |
|---|---|---|---|---|
| Voltage | V | 18.0 | 24.0 | 36.0 |
| Terminal resistance | Ω | 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 |
| Speed/torque gradient | rpm/mNm | 1.22 | 1.07 | 0.99 |
| Rotor inertia | gcm² | 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 |
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 | BO4840NH2B01-105-18.0 |
|---|---|---|
| Voltage | V | 18.0 |
| Terminal resistance | Ω | 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 | gcm² | 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 |
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 | Ω | 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 | gcm² | 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 |
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 | BO4840NH2B03-105-36.0 |
|---|---|---|
| Voltage | V | 36.0 |
| Terminal resistance | Ω | 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 |
| Speed/torque gradient | rpm/mNm | 0.99 |
| Rotor inertia | gcm² | 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 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
