The BO48**…52MP… series is a compact 48mm brushless DC gear motor with planetary gearbox, optimized for variable speed operation at 12V. Available in multiple reduction stages (1 to 6), it delivers rated torque up to 25,000 mNm and peak torque to 50,000 mNm. Precision CNC gears and robust metal housing ensure high reliability, making it ideal for medical, scientific, and industrial equipment.
| Parameter | Unit | BO4831NH2B01-101-18.0 | BO4831NH2B02-101-24.0 | BO4831NH2B03-101-36.0 |
|---|---|---|---|---|
| Voltage | V | 18.0 | 24.0 | 36.0 |
| Terminal resistance | Ω | 0.05 | 0.08 | 0.18 |
| No-load speed | rpm | 10160 | 10160 | 10160 |
| No-load current | mA | 1.1 | 0.9 | 0.6 |
| Stall torque | mNm | 6053 | 6726 | 6727 |
| Stall current | mA | 360 | 300 | 200 |
| Load torque | mNm | 449 | 447 | 457 |
| Load speed | rpm | 7600 | 7700 | 7700 |
| Load current | mA | 23.5 | 17.6 | 12.0 |
| Max. output power | W | 1609 | 1788 | 1788 |
| Max. efficiency | % | 89.2 | 89.3 | 89.3 |
| Back-EMF constant | mV/rpm | 1.8 | 2.4 | 3.5 |
| Torque constant | mNm/A | 16.9 | 22.5 | 33.7 |
| Speed/torque gradient | rpm/mNm | 1.68 | 1.51 | 1.51 |
| Rotor inertia | g·cm² | 306 | 306 | 306 |
| Weight | g | 211 | 211 | 211 |
| Operating temperature range | °C | -10~+80 | -10~+80 | -10~+80 |
| Gearbox stages | Unit | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|---|
| Reduction ratio | — | 3.65~8.63 | 14~58 | 67~393 | — | — | — |
| Max. rated torque | mNm | 4000 | 12000 | 25000 | — | — | — |
| Max. momentary torque | mNm | 8000 | 24000 | 50000 | — | — | — |
| Length（L） | mm | 38.6 | 54.2 | 69.8 | — | — | — |
| Shell material | Metal | – | – | – | – | – | |
| Gear processing technologyGear processing technology | Metal CNC | – | – | – | – | – |
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 | BO4831NH2B01-101-18.0 |
|---|---|---|
| Voltage | V | 18.0 |
| Terminal resistance | Ω | 0.05 |
| No-load speed | rpm | 10160 |
| No-load current | mA | 1.1 |
| Stall torque | mNm | 6053 |
| Stall current | mA | 360 |
| Load torque | mNm | 449 |
| Load speed | rpm | 7600 |
| Load current | mA | 23.5 |
| Max. output power | W | 1609 |
| Max. efficiency | % | 89.2 |
| Back-EMF constant | mV/rpm | 1.8 |
| Torque constant | mNm/A | 16.9 |
| Speed/torque gradient | rpm/mNm | 1.68 |
| Rotor inertia | g·cm² | 306 |
| Weight | g | 211 |
| Operating temperature range | °C | -10~+80 |
| Gearbox stages | Unit | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|---|
| Reduction ratio | — | 3.65~8.63 | 14~58 | 67~393 | — | — | — |
| Max. rated torque | mNm | 4000 | 12000 | 25000 | — | — | — |
| Max. momentary torque | mNm | 8000 | 24000 | 50000 | — | — | — |
| Length（L） | mm | 38.6 | 54.2 | 69.8 | — | — | — |
| Shell material | Metal | – | – | – | – | – | |
| Gear processing technologyGear processing technology | Metal CNC | – | – | – | – | – |
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 | BO4831NH2B02-101-24.0 |
|---|---|---|
| Voltage | V | 24.0 |
| Terminal resistance | Ω | 0.08 |
| No-load speed | rpm | 10160 |
| No-load current | mA | 0.9 |
| Stall torque | mNm | 6726 |
| Stall current | mA | 300 |
| Load torque | mNm | 447 |
| Load speed | rpm | 7700 |
| Load current | mA | 17.6 |
| Max. output power | W | 1788 |
| Max. efficiency | % | 89.3 |
| Back-EMF constant | mV/rpm | 2.4 |
| Torque constant | mNm/A | 22.5 |
| Speed/torque gradient | rpm/mNm | 1.51 |
| Rotor inertia | g·cm² | 306 |
| Weight | g | 211 |
| Operating temperature range | °C | -10~+80 |
| Gearbox stages | Unit | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|---|
| Reduction ratio | — | 3.65~8.63 | 14~58 | 67~393 | — | — | — |
| Max. rated torque | mNm | 4000 | 12000 | 25000 | — | — | — |
| Max. momentary torque | mNm | 8000 | 24000 | 50000 | — | — | — |
| Length（L） | mm | 38.6 | 54.2 | 69.8 | — | — | — |
| Shell material | Metal | – | – | – | – | – | |
| Gear processing technologyGear processing technology | Metal CNC | – | – | – | – | – |
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 | BO4831NH2B03-101-36.0 |
|---|---|---|
| Voltage | V | 36.0 |
| Terminal resistance | Ω | 0.18 |
| No-load speed | rpm | 10160 |
| No-load current | mA | 0.6 |
| Stall torque | mNm | 6727 |
| Stall current | mA | 200 |
| Load torque | mNm | 457 |
| Load speed | rpm | 7700 |
| Load current | mA | 12.0 |
| Max. output power | W | 1788 |
| Max. efficiency | % | 89.3 |
| Back-EMF constant | mV/rpm | 3.5 |
| Torque constant | mNm/A | 33.7 |
| Speed/torque gradient | rpm/mNm | 1.51 |
| Rotor inertia | g·cm² | 306 |
| Weight | g | 211 |
| Operating temperature range | °C | -10~+80 |
| Gearbox stages | Unit | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|---|
| Reduction ratio | — | 3.65~8.63 | 14~58 | 67~393 | — | — | — |
| Max. rated torque | mNm | 4000 | 12000 | 25000 | — | — | — |
| Max. momentary torque | mNm | 8000 | 24000 | 50000 | — | — | — |
| Length（L） | mm | 38.6 | 54.2 | 69.8 | — | — | — |
| Shell material | Metal | – | – | – | – | – | |
| Gear processing technologyGear processing technology | Metal CNC | – | – | – | – | – |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
