The BO1812N2B series features compact 18mm BLDC outer rotor motors with sensorless operation, ideal for UAVs and aeromodelling applications. Options for customized lead wire lengths, shaft configurations, special coils, and gear heads are available. Designed for reliability and efficiency, this family supports encoder and driver integration to suit demanding lightweight, high-performance motion requirements.
| Parameter | Unit | BO1812N2B01-158-6.0 | BO1812N2B02-158-9.0 | BO1812N2B03-158-12.0 |
|---|---|---|---|---|
| Voltage | V | 6.0 | 9.0 | 12.0 |
| Terminal resistance | Ω | 0.43 | 0.96 | 1.70 |
| No-load speed | rpm | 15800 | 15800 | 15800 |
| No-load current | A | 0.14 | 0.10 | 0.08 |
| Stall torque | mNm | 49.6 | 49.9 | 50.1 |
| Stall current | A | 14.0 | 9.4 | 7.1 |
| Nominal torque | mNm | 9.4 | 10 | 10 |
| Nominal speed | rpm | 9690 | 9580 | 10200 |
| Nominal current | A | 2.1 | 2.1 | 1.5 |
| Max. output power | W | 20.6 | 20.7 | 20.7 |
| Max. efficiency | % | 81.2 | 80.0 | 80.2 |
| Back-EMF constant | mV/rpm | 0.38 | 0.56 | 0.75 |
| Torque constant | mNm/A | 3.6 | 5.4 | 7.2 |
| KV Value | rpm/V | 2630 | 1750 | 1320 |
| Speed/torque gradient | rpm/mNm | 318.4 | 316.8 | 315.5 |
| Rotor inertia | gcm² | 2.1 | 2.1 | 2.1 |
| Weight | g | 11 | 11 | 11 |
| Thermal resistance housing-ambient | K/W | 10.6 | 10.6 | 10.6 |
| Thermal resistance winding-housing | K/W | 14.6 | 14.6 | 14.6 |
| Thermal time constant motor | s | 142 | 142 | 142 |
| Thermal time constant winding | s | 99 | 99 | 99 |
| 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 | 1.5 | 1.5 | 1.5 |
| Axial load static | N | 37 | 37 | 37 |
| Radial load at 3 mm from mounting face | N | 12 | 12 | 12 |
| No. of pole pairs | 6 | 6 | 6 | |
| Bearings | 2 ball bearings | 2 ball bearings | 2 ball bearings | |
| Protection class | IP | 20 | 20 | 20 |
| Commutation | Sensorless | Sensorless | Sensorless |
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 | BO1812N2B01-158-6.0 |
|---|---|---|
| Voltage | V | 6.0 |
| Terminal resistance | Ω | 0.43 |
| No-load speed | rpm | 15800 |
| No-load current | A | 0.14 |
| Stall torque | mNm | 49.6 |
| Stall current | A | 14.0 |
| Nominal torque | mNm | 9.4 |
| Nominal speed | rpm | 9690 |
| Nominal current | A | 2.1 |
| Max. output power | W | 20.6 |
| Max. efficiency | % | 81.2 |
| Back-EMF constant | mV/rpm | 0.38 |
| Torque constant | mNm/A | 3.6 |
| KV Value | rpm/V | 2630 |
| Speed/torque gradient | rpm/mNm | 318.4 |
| Rotor inertia | gcm² | 2.1 |
| Weight | g | 11 |
| Thermal resistance housing-ambient | K/W | 10.6 |
| Thermal resistance winding-housing | K/W | 14.6 |
| Thermal time constant motor | s | 142 |
| Thermal time constant winding | s | 99 |
| 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 | 1.5 |
| Axial load static | N | 37 |
| Radial load at 3 mm from mounting face | N | 12 |
| No. of pole pairs | 6 | |
| Bearings | 2 ball bearings | |
| Protection class | IP | 20 |
| Commutation | Sensorless |
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 | BO1812N2B02-158-9.0 |
|---|---|---|
| Voltage | V | 9.0 |
| Terminal resistance | Ω | 0.96 |
| No-load speed | rpm | 15800 |
| No-load current | A | 0.10 |
| Stall torque | mNm | 49.9 |
| Stall current | A | 9.4 |
| Nominal torque | mNm | 10 |
| Nominal speed | rpm | 9580 |
| Nominal current | A | 2.1 |
| Max. output power | W | 20.7 |
| Max. efficiency | % | 80.0 |
| Back-EMF constant | mV/rpm | 0.56 |
| Torque constant | mNm/A | 5.4 |
| KV Value | rpm/V | 1750 |
| Speed/torque gradient | rpm/mNm | 316.8 |
| Rotor inertia | gcm² | 2.1 |
| Weight | g | 11 |
| Thermal resistance housing-ambient | K/W | 10.6 |
| Thermal resistance winding-housing | K/W | 14.6 |
| Thermal time constant motor | s | 142 |
| Thermal time constant winding | s | 99 |
| 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 | 1.5 |
| Axial load static | N | 37 |
| Radial load at 3 mm from mounting face | N | 12 |
| No. of pole pairs | 6 | |
| Bearings | 2 ball bearings | |
| Protection class | IP | 20 |
| Commutation | Sensorless |
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 | BO1812N2B03-158-12.0 |
|---|---|---|
| Voltage | V | 12.0 |
| Terminal resistance | Ω | 1.70 |
| No-load speed | rpm | 15800 |
| No-load current | A | 0.08 |
| Stall torque | mNm | 50.1 |
| Stall current | A | 7.1 |
| Nominal torque | mNm | 10 |
| Nominal speed | rpm | 10200 |
| Nominal current | A | 1.5 |
| Max. output power | W | 20.7 |
| Max. efficiency | % | 80.2 |
| Back-EMF constant | mV/rpm | 0.75 |
| Torque constant | mNm/A | 7.2 |
| KV Value | rpm/V | 1320 |
| Speed/torque gradient | rpm/mNm | 315.5 |
| Rotor inertia | gcm² | 2.1 |
| Weight | g | 11 |
| Thermal resistance housing-ambient | K/W | 10.6 |
| Thermal resistance winding-housing | K/W | 14.6 |
| Thermal time constant motor | s | 142 |
| Thermal time constant winding | s | 99 |
| 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 | 1.5 |
| Axial load static | N | 37 |
| Radial load at 3 mm from mounting face | N | 12 |
| No. of pole pairs | 6 | |
| Bearings | 2 ball bearings | |
| Protection class | IP | 20 |
| Commutation | Sensorless |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
