The BO2828N2B series is a compact 28mm outer rotor brushless DC motor, optimized for sensorless operation. It delivers high efficiency and smooth performance, making it ideal for UAVs, electrical tools, automation devices, and smart home products. Flexible customization options include shaft length, special coils, bearing type, gear heads, and integrated feedback solutions for demanding motion control requirements.
| Parameter | Unit | BO2828N2B01-112-12.0 | BO2828N2B02-112-24.0 | BO2828N2B03-112-36.0 |
|---|---|---|---|---|
| Voltage | V | 12.0 | 24.0 | 36.0 |
| Terminal resistance | Ω | 0.09 | 0.38 | 0.81 |
| No-load speed | rpm | 11200 | 11200 | 11200 |
| No-load current | A | 0.63 | 0.32 | 0.20 |
| Stall torque | mNm | 1301 | 1289 | 1357 |
| Stall current | A | 127.7 | 64.0 | 44.3 |
| Nominal torque | mNm | 122.7 | 120 | 157 |
| Nominal speed | rpm | 7320 | 8750 | 8540 |
| Nominal current | A | 11.3 | 5.9 | 4.8 |
| Max. output power | W | 379 | 380 | 395 |
| Max. efficiency | % | 86.4 | 86.3 | 87.1 |
| Back-EMF constant | mV/rpm | 1.1 | 2.1 | 3.2 |
| Torque constant | mNm/A | 10.2 | 20.2 | 30.8 |
| KV Value | rpm/V | 928 | 470 | 309 |
| Speed/torque gradient | rpm/mNm | 8.6 | 8.7 | 8.2 |
| Rotor inertia | gcm² | 35 | 35 | 35 |
| Weight | g | 61 | 61 | 61 |
| Thermal resistance housing-ambient | K/W | 1.6 | 1.6 | 1.6 |
| Thermal resistance winding-housing | K/W | 1.4 | 1.4 | 1.4 |
| Thermal time constant motor | s | 315 | 315 | 315 |
| Thermal time constant winding | s | 45 | 45 | 45 |
| 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 | 8 | 8 | 8 |
| Axial load static | N | 85 | 85 | 85 |
| Radial load at 3 mm from mounting face | N | 26 | 26 | 26 |
| No. of pole pairs | 7 | 7 | 7 | |
| 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 | BO2828N2B01-112-12.0 |
|---|---|---|
| Voltage | V | 12.0 |
| Terminal resistance | Ω | 0.09 |
| No-load speed | rpm | 11200 |
| No-load current | A | 0.63 |
| Stall torque | mNm | 1301 |
| Stall current | A | 127.7 |
| Nominal torque | mNm | 122.7 |
| Nominal speed | rpm | 7320 |
| Nominal current | A | 11.3 |
| Max. output power | W | 379 |
| Max. efficiency | % | 86.4 |
| Back-EMF constant | mV/rpm | 1.1 |
| Torque constant | mNm/A | 10.2 |
| KV Value | rpm/V | 928 |
| Speed/torque gradient | rpm/mNm | 8.6 |
| Rotor inertia | gcm² | 35 |
| Weight | g | 61 |
| Thermal resistance housing-ambient | K/W | 1.6 |
| Thermal resistance winding-housing | K/W | 1.4 |
| Thermal time constant motor | s | 315 |
| Thermal time constant winding | s | 45 |
| 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 | 8 |
| Axial load static | N | 85 |
| Radial load at 3 mm from mounting face | N | 26 |
| No. of pole pairs | 7 | |
| 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 | BO2828N2B02-112-24.0 |
|---|---|---|
| Voltage | V | 24.0 |
| Terminal resistance | Ω | 0.38 |
| No-load speed | rpm | 11200 |
| No-load current | A | 0.32 |
| Stall torque | mNm | 1289 |
| Stall current | A | 64.0 |
| Nominal torque | mNm | 120 |
| Nominal speed | rpm | 8750 |
| Nominal current | A | 5.9 |
| Max. output power | W | 380 |
| Max. efficiency | % | 86.3 |
| Back-EMF constant | mV/rpm | 2.1 |
| Torque constant | mNm/A | 20.2 |
| KV Value | rpm/V | 470 |
| Speed/torque gradient | rpm/mNm | 8.7 |
| Rotor inertia | gcm² | 35 |
| Weight | g | 61 |
| Thermal resistance housing-ambient | K/W | 1.6 |
| Thermal resistance winding-housing | K/W | 1.4 |
| Thermal time constant motor | s | 315 |
| Thermal time constant winding | s | 45 |
| 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 | 8 |
| Axial load static | N | 85 |
| Radial load at 3 mm from mounting face | N | 26 |
| No. of pole pairs | 7 | |
| 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 | BO2828N2B03-112-36.0 |
|---|---|---|
| Voltage | V | 36.0 |
| Terminal resistance | Ω | 0.81 |
| No-load speed | rpm | 11200 |
| No-load current | A | 0.20 |
| Stall torque | mNm | 1357 |
| Stall current | A | 44.3 |
| Nominal torque | mNm | 157 |
| Nominal speed | rpm | 8540 |
| Nominal current | A | 4.8 |
| Max. output power | W | 395 |
| Max. efficiency | % | 87.1 |
| Back-EMF constant | mV/rpm | 3.2 |
| Torque constant | mNm/A | 30.8 |
| KV Value | rpm/V | 309 |
| Speed/torque gradient | rpm/mNm | 8.2 |
| Rotor inertia | gcm² | 35 |
| Weight | g | 61 |
| Thermal resistance housing-ambient | K/W | 1.6 |
| Thermal resistance winding-housing | K/W | 1.4 |
| Thermal time constant motor | s | 315 |
| Thermal time constant winding | s | 45 |
| 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 | 8 |
| Axial load static | N | 85 |
| Radial load at 3 mm from mounting face | N | 26 |
| No. of pole pairs | 7 | |
| 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.
