The B2040N2B family features 20mm BLDC inner rotor motors with a slotless, sensorless design for precise, efficient operation. Engineered for compact spaces, these motors deliver smooth, cog-free rotation, making them ideal for medical devices and automation. Multiple configuration options include varied shaft lengths, special coils, gear heads, encoders, and driver integration to tailor performance for demanding industrial and precision applications.
| Parameter | Unit | B2040N2B03-150-12.0 | B2040N2B09-80-12.0 | B2040N2B05-67-9.0 | B2040NH2B21-158-24.0 |
|---|---|---|---|---|---|
| Voltage | V | 12.0 | 12.0 | 9.0 | 24.0 |
| Terminal resistance | Ω | 1.1 | 3.6 | 2.5 | 15 |
| No-load speed | rpm | 15000 | 8000 | 6700 | 15800 |
| No-load current | A | 0.25 | 0.22 | 0.2 | 0.08 |
| Stall torque | mNm | 79.6 | 41.7 | 41.2 | 21 |
| Stall current | A | 10.9 | 3.3 | 3.6 | 1.6 |
| Nominal torque | mNm | 7.6 | 7.6 | 10.2 | 4 |
| Nominal speed | rpm | 13000 | 5900 | 4300 | 12800 |
| Nominal current | A | 1.3 | 0.8 | 1.1 | 0.37 |
| Max. output power | W | 31 | 8.7 | 7.2 | 8.67 |
| Max. efficiency | % | 72 | 55 | 58 | 60 |
| Back-EMF constant | mV/rpm | 0.8 | 1.4 | 1.3 | 1.44 |
| Torque constant | mNm/A | 7.5 | 13.4 | 12.1 | 13.7 |
| KV Value | rpm/V | 1250 | 666.7 | 744.4 | 658.3 |
| Speed/torque gradient | rpm/mNm | 188.5 | 192.1 | 162.7 | 754.3 |
| Rotor inertia | gcm² | 2 | 2 | 2 | 2 |
| Weight | g | 55 | 55 | 55 | 55 |
| Thermal resistance housing-ambient | K/W | 16 | 16 | 16 | 16 |
| Thermal resistance winding-housing | K/W | 3.5 | 3.5 | 3.5 | 3.5 |
| Thermal time constant motor | s | 620 | 620 | 620 | 620 |
| Thermal time constant winding | s | 4 | 4 | 4 | 4 |
| Operating temperature range | °C | -40~+100 | -40~+100 | -40~+100 | -40~+100 |
| Thermal class of winding | °C | 155 | 155 | 155 | 155 |
| Axial play | mm | 0.012 | 0.012 | 0.012 | 0.012 |
| Radial play | mm | 0.008 | 0.008 | 0.008 | 0.008 |
| Axial load dynamic | N | 5 | 5 | 5 | 5 |
| Axial load static | N | 80 | 80 | 80 | 80 |
| Radial load at 3 mm from mounting face | N | 29 | 29 | 29 | 29 |
| No. of pole pairs | 1 | 1 | 1 | 1 | |
| Bearings | 2 ball bearings | 2 ball bearings | 2 ball bearings | 2 ball bearings | |
| Commutation | Sensorless | Sensorless | Sensorless | Hall-sensor | |
| Protection class | IP | 30 | 30 | 30 | 30 |
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 | B2040N2B03-150-12.0 |
|---|---|---|
| Voltage | V | 12.0 |
| Terminal resistance | Ω | 1.1 |
| No-load speed | rpm | 15000 |
| No-load current | A | 0.25 |
| Stall torque | mNm | 79.6 |
| Stall current | A | 10.9 |
| Nominal torque | mNm | 7.6 |
| Nominal speed | rpm | 13000 |
| Nominal current | A | 1.3 |
| Max. output power | W | 31 |
| Max. efficiency | % | 72 |
| Back-EMF constant | mV/rpm | 0.8 |
| Torque constant | mNm/A | 7.5 |
| KV Value | rpm/V | 1250 |
| Speed/torque gradient | rpm/mNm | 188.5 |
| Rotor inertia | gcm² | 2 |
| Weight | g | 55 |
| Thermal resistance housing-ambient | K/W | 16 |
| Thermal resistance winding-housing | K/W | 3.5 |
| Thermal time constant motor | s | 620 |
| Thermal time constant winding | s | 4 |
| Operating temperature range | °C | -40~+100 |
| Thermal class of winding | °C | 155 |
| Axial play | mm | 0.012 |
| Radial play | mm | 0.008 |
| Axial load dynamic | N | 5 |
| Axial load static | N | 80 |
| Radial load at 3 mm from mounting face | N | 29 |
| No. of pole pairs | 1 | |
| Bearings | 2 ball bearings | |
| Commutation | Sensorless | |
| Protection class | IP | 30 |
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 | B2040N2B09-80-12.0 |
|---|---|---|
| Voltage | V | 12.0 |
| Terminal resistance | Ω | 3.6 |
| No-load speed | rpm | 8000 |
| No-load current | A | 0.22 |
| Stall torque | mNm | 41.7 |
| Stall current | A | 3.3 |
| Nominal torque | mNm | 7.6 |
| Nominal speed | rpm | 5900 |
| Nominal current | A | 0.8 |
| Max. output power | W | 8.7 |
| Max. efficiency | % | 55 |
| Back-EMF constant | mV/rpm | 1.4 |
| Torque constant | mNm/A | 13.4 |
| KV Value | rpm/V | 666.7 |
| Speed/torque gradient | rpm/mNm | 192.1 |
| Rotor inertia | gcm² | 2 |
| Weight | g | 55 |
| Thermal resistance housing-ambient | K/W | 16 |
| Thermal resistance winding-housing | K/W | 3.5 |
| Thermal time constant motor | s | 620 |
| Thermal time constant winding | s | 4 |
| Operating temperature range | °C | -40~+100 |
| Thermal class of winding | °C | 155 |
| Axial play | mm | 0.012 |
| Radial play | mm | 0.008 |
| Axial load dynamic | N | 5 |
| Axial load static | N | 80 |
| Radial load at 3 mm from mounting face | N | 29 |
| No. of pole pairs | 1 | |
| Bearings | 2 ball bearings | |
| Commutation | Sensorless | |
| Protection class | IP | 30 |
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 | B2040N2B05-67-9.0 |
|---|---|---|
| Voltage | V | 9.0 |
| Terminal resistance | Ω | 2.5 |
| No-load speed | rpm | 6700 |
| No-load current | A | 0.2 |
| Stall torque | mNm | 41.2 |
| Stall current | A | 3.6 |
| Nominal torque | mNm | 10.2 |
| Nominal speed | rpm | 4300 |
| Nominal current | A | 1.1 |
| Max. output power | W | 7.2 |
| Max. efficiency | % | 58 |
| Back-EMF constant | mV/rpm | 1.3 |
| Torque constant | mNm/A | 12.1 |
| KV Value | rpm/V | 744.4 |
| Speed/torque gradient | rpm/mNm | 162.7 |
| Rotor inertia | gcm² | 2 |
| Weight | g | 55 |
| Thermal resistance housing-ambient | K/W | 16 |
| Thermal resistance winding-housing | K/W | 3.5 |
| Thermal time constant motor | s | 620 |
| Thermal time constant winding | s | 4 |
| Operating temperature range | °C | -40~+100 |
| Thermal class of winding | °C | 155 |
| Axial play | mm | 0.012 |
| Radial play | mm | 0.008 |
| Axial load dynamic | N | 5 |
| Axial load static | N | 80 |
| Radial load at 3 mm from mounting face | N | 29 |
| No. of pole pairs | 1 | |
| Bearings | 2 ball bearings | |
| Commutation | Sensorless | |
| Protection class | IP | 30 |
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 | B2040NH2B21-158-24.0 |
|---|---|---|
| Voltage | V | 24.0 |
| Terminal resistance | Ω | 15 |
| No-load speed | rpm | 15800 |
| No-load current | A | 0.08 |
| Stall torque | mNm | 21 |
| Stall current | A | 1.6 |
| Nominal torque | mNm | 4 |
| Nominal speed | rpm | 12800 |
| Nominal current | A | 0.37 |
| Max. output power | W | 8.67 |
| Max. efficiency | % | 60 |
| Back-EMF constant | mV/rpm | 1.44 |
| Torque constant | mNm/A | 13.7 |
| KV Value | rpm/V | 658.3 |
| Speed/torque gradient | rpm/mNm | 754.3 |
| Rotor inertia | gcm² | 2 |
| Weight | g | 55 |
| Thermal resistance housing-ambient | K/W | 16 |
| Thermal resistance winding-housing | K/W | 3.5 |
| Thermal time constant motor | s | 620 |
| Thermal time constant winding | s | 4 |
| Operating temperature range | °C | -40~+100 |
| Thermal class of winding | °C | 155 |
| Axial play | mm | 0.012 |
| Radial play | mm | 0.008 |
| Axial load dynamic | N | 5 |
| Axial load static | N | 80 |
| Radial load at 3 mm from mounting face | N | 29 |
| No. of pole pairs | 1 | |
| Bearings | 2 ball bearings | |
| Commutation | Hall-sensor | |
| Protection class | IP | 30 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
