The B4040NH2B series is a high-performance 40mm BLDC motor with an inner rotor, slotless design, and integrated Hall sensors. Designed for demanding applications in medical equipment and electrical tools, it offers smooth operation, low cogging, and precise speed control. Key options include customizable shaft and wire lengths, special coils, gear heads, encoders, and driver compatibility.
| Parameter | Unit | B4040NH2B02-420-18.0 | B4040NH2B01-420-24.0 | B4040NH2B03-300-24.0 |
|---|---|---|---|---|
| Voltage | V | 18.0 | 24.0 | 24.0 |
| Terminal resistance | Ω | 1.5 | 2 | 2.8 |
| No-load speed | rpm | 42000 | 42000 | 30000 |
| No-load current | A | 0.168 | 0.2 | 0.2 |
| Stall torque | mNm | 47.7 | 63.3 | 62.5 |
| Stall current | A | 12 | 12 | 8.6 |
| Nominal torque | mNm | 5 | 5 | 5 |
| Nominal speed | rpm | 37000 | 38000 | 27000 |
| Nominal current | A | 1.4 | 1.2 | 0.9 |
| Max. output power | W | 52.6 | 69.7 | 49.1 |
| Max. efficiency | % | 77.7 | 75.8 | 71.7 |
| Back-EMF constant | mV/rpm | 0.4 | 0.56 | 0.78 |
| Torque constant | mNm/A | 4.0 | 5.4 | 7.5 |
| KV Value | rpm/V | 2333.3 | 1750 | 1250 |
| Speed/torque gradient | rpm/mNm | 879.7 | 663.3 | 480.3 |
| Rotor inertia | gcm² | 20 | 20 | 20 |
| Weight | g | 200 | 200 | 200 |
| Thermal resistance housing-ambient | K/W | 9 | 9 | 9 |
| Thermal resistance winding-housing | K/W | 2.4 | 2.4 | 2.4 |
| Thermal time constant motor | s | 1400 | 1400 | 1400 |
| Thermal time constant winding | s | 20 | 20 | 20 |
| Operating temperature range | °C | -40~+120 | -40~+120 | -40~+120 |
| Thermal class of winding | °C | 155 | 155 | 155 |
| Axial play | mm | 2.3 | 2.3 | 2.3 |
| Radial play | mm | 0.012 | 0.012 | 0.012 |
| Axial load dynamic | N | 8 | 8 | 8 |
| Axial load static | N | 110 | 110 | 110 |
| Radial load at 3 mm from mounting face | N | 31 | 31 | 31 |
| No. of pole pairs | 2 | 2 | 2 | |
| 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 | B4040NH2B02-420-18.0 |
|---|---|---|
| Voltage | V | 18.0 |
| Terminal resistance | Ω | 1.5 |
| No-load speed | rpm | 42000 |
| No-load current | A | 0.168 |
| Stall torque | mNm | 47.7 |
| Stall current | A | 12 |
| Nominal torque | mNm | 5 |
| Nominal speed | rpm | 37000 |
| Nominal current | A | 1.4 |
| Max. output power | W | 52.6 |
| Max. efficiency | % | 77.7 |
| Back-EMF constant | mV/rpm | 0.4 |
| Torque constant | mNm/A | 4.0 |
| KV Value | rpm/V | 2333.3 |
| Speed/torque gradient | rpm/mNm | 879.7 |
| Rotor inertia | gcm² | 20 |
| Weight | g | 200 |
| Thermal resistance housing-ambient | K/W | 9 |
| Thermal resistance winding-housing | K/W | 2.4 |
| Thermal time constant motor | s | 1400 |
| Thermal time constant winding | s | 20 |
| Operating temperature range | °C | -40~+120 |
| Thermal class of winding | °C | 155 |
| Axial play | mm | 2.3 |
| Radial play | mm | 0.012 |
| Axial load dynamic | N | 8 |
| Axial load static | N | 110 |
| Radial load at 3 mm from mounting face | N | 31 |
| No. of pole pairs | 2 | |
| 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 | B4040NH2B01-420-24.0 |
|---|---|---|
| Voltage | V | 24.0 |
| Terminal resistance | Ω | 2 |
| No-load speed | rpm | 42000 |
| No-load current | A | 0.2 |
| Stall torque | mNm | 63.3 |
| Stall current | A | 12 |
| Nominal torque | mNm | 5 |
| Nominal speed | rpm | 38000 |
| Nominal current | A | 1.2 |
| Max. output power | W | 69.7 |
| Max. efficiency | % | 75.8 |
| Back-EMF constant | mV/rpm | 0.56 |
| Torque constant | mNm/A | 5.4 |
| KV Value | rpm/V | 1750 |
| Speed/torque gradient | rpm/mNm | 663.3 |
| Rotor inertia | gcm² | 20 |
| Weight | g | 200 |
| Thermal resistance housing-ambient | K/W | 9 |
| Thermal resistance winding-housing | K/W | 2.4 |
| Thermal time constant motor | s | 1400 |
| Thermal time constant winding | s | 20 |
| Operating temperature range | °C | -40~+120 |
| Thermal class of winding | °C | 155 |
| Axial play | mm | 2.3 |
| Radial play | mm | 0.012 |
| Axial load dynamic | N | 8 |
| Axial load static | N | 110 |
| Radial load at 3 mm from mounting face | N | 31 |
| No. of pole pairs | 2 | |
| Bearings | 2 ball bearings | |
| Commutation | Hall Sensor | |
| Protection class | IP | 20 |
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 | B4040NH2B03-300-24.0 |
|---|---|---|
| Voltage | V | 24.0 |
| Terminal resistance | Ω | 2.8 |
| No-load speed | rpm | 30000 |
| No-load current | A | 0.2 |
| Stall torque | mNm | 62.5 |
| Stall current | A | 8.6 |
| Nominal torque | mNm | 5 |
| Nominal speed | rpm | 27000 |
| Nominal current | A | 0.9 |
| Max. output power | W | 49.1 |
| Max. efficiency | % | 71.7 |
| Back-EMF constant | mV/rpm | 0.78 |
| Torque constant | mNm/A | 7.5 |
| KV Value | rpm/V | 1250 |
| Speed/torque gradient | rpm/mNm | 480.3 |
| Rotor inertia | gcm² | 20 |
| Weight | g | 200 |
| Thermal resistance housing-ambient | K/W | 9 |
| Thermal resistance winding-housing | K/W | 2.4 |
| Thermal time constant motor | s | 1400 |
| Thermal time constant winding | s | 20 |
| Operating temperature range | °C | -40~+120 |
| Thermal class of winding | °C | 155 |
| Axial play | mm | 2.3 |
| Radial play | mm | 0.012 |
| Axial load dynamic | N | 8 |
| Axial load static | N | 110 |
| Radial load at 3 mm from mounting face | N | 31 |
| No. of pole pairs | 2 | |
| Bearings | 2 ball bearings | |
| Commutation | Hall Sensor | |
| Protection class | IP | 20 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
