The BS2838NB2B family features 28mm sensorless BLDC motors with an inner rotor and slotted design for precise, maintenance-free performance. Ideal for demanding applications in medical devices and industrial automation, these motors offer customizable options such as shaft length, special coils, gear heads, and more to suit a variety of motion control needs.
| Parameter | Unit | BS2838NB2B01-66-12.0 | BS2838NB2B02-66-24.0 | BS2838NB2B03-45-16.0 |
|---|---|---|---|---|
| Voltage | V | 12.0 | 24.0 | 16.0 |
| Terminal resistance | Ω | 2.3 | 12.7 | 14 |
| No-load speed | rpm | 6600 | 6600 | 4500 |
| No-load current | A | 0.25 | 0.1 | 0.1 |
| Stall torque | mNm | 83 | 58 | 32 |
| Stall current | A | 5 | 1.9 | 1.1 |
| Nominal torque | mNm | 10 | 10 | 10 |
| Nominal speed | rpm | 5550 | 5400 | 3000 |
| Nominal current | A | 0.9 | 0.4 | 0.5 |
| Max. output power | W | 14 | 10 | 3.8 |
| Max. efficiency | % | 61 | 59 | 50 |
| Back-EMF constant | mV/rpm | 1.7 | 3.4 | 3 |
| Torque constant | mNm/A | 16.5 | 32.8 | 30.9 |
| KV Value | rpm/V | 550 | 275 | 281 |
| Speed/torque gradient | rpm/mNm | 80 | 112 | 139 |
| Rotor inertia | gcm² | 13 | 13 | 13 |
| Weight | g | 80 | 80 | 80 |
| Thermal resistance housing-ambient | K/W | 17.3 | 17.3 | 17.3 |
| Thermal resistance winding-housing | K/W | 4 | 4 | 4 |
| Thermal time constant motor | s | 600 | 600 | 600 |
| Thermal time constant winding | s | 3 | 3 | 3 |
| Operating temperature range | °C | -40~+100 | -40~+100 | -40~+100 |
| Thermal class of winding | °C | 155 | 155 | 155 |
| Axial play | mm | 0.012 | 0.012 | 0.012 |
| Radial play | mm | 0.008 | 0.008 | 0.008 |
| Axial load dynamic | N | 5 | 5 | 5 |
| Axial load static | N | 80 | 80 | 80 |
| Radial load at 3 mm from mounting face | N | 29 | 29 | 29 |
| No. of pole pairs | 2 | 2 | 2 | |
| Bearings | 2 ball bearings | 2 ball bearings | 2 ball bearings | |
| Commutation | Sensorless | Sensorless | Sensorless | |
| Protection class | IP | 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 | BS2838NB2B01-66-12.0 |
|---|---|---|
| Voltage | V | 12.0 |
| Terminal resistance | Ω | 2.3 |
| No-load speed | rpm | 6600 |
| No-load current | A | 0.25 |
| Stall torque | mNm | 83 |
| Stall current | A | 5 |
| Nominal torque | mNm | 10 |
| Nominal speed | rpm | 5550 |
| Nominal current | A | 0.9 |
| Max. output power | W | 14 |
| Max. efficiency | % | 61 |
| Back-EMF constant | mV/rpm | 1.7 |
| Torque constant | mNm/A | 16.5 |
| KV Value | rpm/V | 550 |
| Speed/torque gradient | rpm/mNm | 80 |
| Rotor inertia | gcm² | 13 |
| Weight | g | 80 |
| Thermal resistance housing-ambient | K/W | 17.3 |
| Thermal resistance winding-housing | K/W | 4 |
| Thermal time constant motor | s | 600 |
| Thermal time constant winding | s | 3 |
| 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 | 2 | |
| 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 | BS2838NB2B02-66-24.0 |
|---|---|---|
| Voltage | V | 24.0 |
| Terminal resistance | Ω | 12.7 |
| No-load speed | rpm | 6600 |
| No-load current | A | 0.1 |
| Stall torque | mNm | 58 |
| Stall current | A | 1.9 |
| Nominal torque | mNm | 10 |
| Nominal speed | rpm | 5400 |
| Nominal current | A | 0.4 |
| Max. output power | W | 10 |
| Max. efficiency | % | 59 |
| Back-EMF constant | mV/rpm | 3.4 |
| Torque constant | mNm/A | 32.8 |
| KV Value | rpm/V | 275 |
| Speed/torque gradient | rpm/mNm | 112 |
| Rotor inertia | gcm² | 13 |
| Weight | g | 80 |
| Thermal resistance housing-ambient | K/W | 17.3 |
| Thermal resistance winding-housing | K/W | 4 |
| Thermal time constant motor | s | 600 |
| Thermal time constant winding | s | 3 |
| 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 | 2 | |
| 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 | BS2838NB2B03-45-16.0 |
|---|---|---|
| Voltage | V | 16.0 |
| Terminal resistance | Ω | 14 |
| No-load speed | rpm | 4500 |
| No-load current | A | 0.1 |
| Stall torque | mNm | 32 |
| Stall current | A | 1.1 |
| Nominal torque | mNm | 10 |
| Nominal speed | rpm | 3000 |
| Nominal current | A | 0.5 |
| Max. output power | W | 3.8 |
| Max. efficiency | % | 50 |
| Back-EMF constant | mV/rpm | 3 |
| Torque constant | mNm/A | 30.9 |
| KV Value | rpm/V | 281 |
| Speed/torque gradient | rpm/mNm | 139 |
| Rotor inertia | gcm² | 13 |
| Weight | g | 80 |
| Thermal resistance housing-ambient | K/W | 17.3 |
| Thermal resistance winding-housing | K/W | 4 |
| Thermal time constant motor | s | 600 |
| Thermal time constant winding | s | 3 |
| 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 | 2 | |
| 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.
