The B0815N2B is a compact 8mm brushless DC motor featuring an inner rotor, slotless, and sensorless design. Optimized for precision drives in medical and industrial automation, it offers high efficiency, low noise, and smooth operation. Multiple configuration options are available, including tailored lead wires, shaft lengths, coils, gear heads, bearing types, Hall sensors, encoders, and drivers.
| Parameter | Unit | B0815N2B02-81-3.7 | B0815N2B04-200-5.0 | B0815N2B05-323-3.7 |
|---|---|---|---|---|
| Voltage | V | 3.7 | 5.0 | 3.7 |
| Terminal resistance | Ω | 36.5 | 12 | 3.1 |
| No-load speed | rpm | 8100 | 20000 | 32300 |
| No-load current | A | 0.02 | 0.06 | 0.1 |
| Stall torque | mNm | 0.32 | 0.73 | 1.1 |
| Stall current | A | 0.1 | 0.42 | 1.2 |
| Nominal torque | mNm | 0.1 | 0.2 | 0.2 |
| Nominal speed | rpm | 6800 | 14000 | 27800 |
| Nominal current | A | 0.03 | 0.17 | 0.26 |
| Max. output power | W | 0.07 | 0.38 | 0.92 |
| Max. efficiency | % | 38 | 38 | 50 |
| Back-EMF constant | mV/rpm | 0.39 | 0.21 | 0.10 |
| Torque constant | mNm/A | 3.70 | 2.04 | 1.00 |
| KV Value | rpm/V | 2180 | 4000 | 8730 |
| Speed/torque gradient | rpm/mNm | 25310 | 27397 | 29360 |
| Rotor inertia | gcm² | 0.02 | 0.02 | 0.02 |
| Weight | g | 3 | 3 | 3 |
| Thermal resistance housing-ambient | K/W | 110 | 110 | 110 |
| Thermal resistance winding-housing | K/W | 26 | 26 | 26 |
| Thermal time constant motor | s | 63 | 63 | 63 |
| Thermal time constant winding | s | 57 | 57 | 57 |
| Operating temperature range | °C | -10~+60 | -10~+60 | -10~+60 |
| Thermal class of winding | °C | 130 | 130 | 130 |
| Axial play | mm | 0.012 | 0.012 | 0.012 |
| Radial play | mm | 0.008 | 0.008 | 0.008 |
| Axial load dynamic | N | 1 | 1 | 1 |
| Axial load static | N | 25 | 25 | 25 |
| Radial load at 3 mm from mounting face | N | 6.3 | 6.3 | 6.3 |
| No. of pole pairs | 1 | 1 | 1 | |
| Bearings | 2 ball bearings | 2 ball bearings | 2 ball bearings | |
| Protection class | IP | 30 | 30 | 30 |
| 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 | B0815N2B02-81-3.7 |
|---|---|---|
| Voltage | V | 3.7 |
| Terminal resistance | Ω | 36.5 |
| No-load speed | rpm | 8100 |
| No-load current | A | 0.02 |
| Stall torque | mNm | 0.32 |
| Stall current | A | 0.1 |
| Nominal torque | mNm | 0.1 |
| Nominal speed | rpm | 6800 |
| Nominal current | A | 0.03 |
| Max. output power | W | 0.07 |
| Max. efficiency | % | 38 |
| Back-EMF constant | mV/rpm | 0.39 |
| Torque constant | mNm/A | 3.70 |
| KV Value | rpm/V | 2180 |
| Speed/torque gradient | rpm/mNm | 25310 |
| Rotor inertia | gcm² | 0.02 |
| Weight | g | 3 |
| Thermal resistance housing-ambient | K/W | 110 |
| Thermal resistance winding-housing | K/W | 26 |
| Thermal time constant motor | s | 63 |
| Thermal time constant winding | s | 57 |
| Operating temperature range | °C | -10~+60 |
| Thermal class of winding | °C | 130 |
| Axial play | mm | 0.012 |
| Radial play | mm | 0.008 |
| Axial load dynamic | N | 1 |
| Axial load static | N | 25 |
| Radial load at 3 mm from mounting face | N | 6.3 |
| No. of pole pairs | 1 | |
| Bearings | 2 ball bearings | |
| Protection class | IP | 30 |
| 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 | B0815N2B04-200-5.0 |
|---|---|---|
| Voltage | V | 5.0 |
| Terminal resistance | Ω | 12 |
| No-load speed | rpm | 20000 |
| No-load current | A | 0.06 |
| Stall torque | mNm | 0.73 |
| Stall current | A | 0.42 |
| Nominal torque | mNm | 0.2 |
| Nominal speed | rpm | 14000 |
| Nominal current | A | 0.17 |
| Max. output power | W | 0.38 |
| Max. efficiency | % | 38 |
| Back-EMF constant | mV/rpm | 0.21 |
| Torque constant | mNm/A | 2.04 |
| KV Value | rpm/V | 4000 |
| Speed/torque gradient | rpm/mNm | 27397 |
| Rotor inertia | gcm² | 0.02 |
| Weight | g | 3 |
| Thermal resistance housing-ambient | K/W | 110 |
| Thermal resistance winding-housing | K/W | 26 |
| Thermal time constant motor | s | 63 |
| Thermal time constant winding | s | 57 |
| Operating temperature range | °C | -10~+60 |
| Thermal class of winding | °C | 130 |
| Axial play | mm | 0.012 |
| Radial play | mm | 0.008 |
| Axial load dynamic | N | 1 |
| Axial load static | N | 25 |
| Radial load at 3 mm from mounting face | N | 6.3 |
| No. of pole pairs | 1 | |
| Bearings | 2 ball bearings | |
| Protection class | IP | 30 |
| 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 | B0815N2B05-323-3.7 |
|---|---|---|
| Voltage | V | 3.7 |
| Terminal resistance | Ω | 3.1 |
| No-load speed | rpm | 32300 |
| No-load current | A | 0.1 |
| Stall torque | mNm | 1.1 |
| Stall current | A | 1.2 |
| Nominal torque | mNm | 0.2 |
| Nominal speed | rpm | 27800 |
| Nominal current | A | 0.26 |
| Max. output power | W | 0.92 |
| Max. efficiency | % | 50 |
| Back-EMF constant | mV/rpm | 0.10 |
| Torque constant | mNm/A | 1.00 |
| KV Value | rpm/V | 8730 |
| Speed/torque gradient | rpm/mNm | 29360 |
| Rotor inertia | gcm² | 0.02 |
| Weight | g | 3 |
| Thermal resistance housing-ambient | K/W | 110 |
| Thermal resistance winding-housing | K/W | 26 |
| Thermal time constant motor | s | 63 |
| Thermal time constant winding | s | 57 |
| Operating temperature range | °C | -10~+60 |
| Thermal class of winding | °C | 130 |
| Axial play | mm | 0.012 |
| Radial play | mm | 0.008 |
| Axial load dynamic | N | 1 |
| Axial load static | N | 25 |
| Radial load at 3 mm from mounting face | N | 6.3 |
| No. of pole pairs | 1 | |
| Bearings | 2 ball bearings | |
| Protection class | IP | 30 |
| 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.
