The 1925N9M series features 19mm micro DC coreless motors with precious metal commutation, delivering excellent reliability and efficiency. Designed for compact, high-precision applications, these motors are ideal for medical devices, robotics, and industrial automation. Multiple customization options include shaft length, special coils, bearing types, and gear heads to meet diverse performance needs.
| Parameter | Unit | 1925N9M01-69-6.0 | 1925N9M02-80-12.0 | 1925N9M03-85-24.0 |
|---|---|---|---|---|
| Voltage | V | 6.0 | 12.0 | 24.0 |
| Terminal resistance | Ω | 2.8 | 9.6 | 28.3 |
| No-load speed | rpm | 6900 | 8000 | 8500 |
| No-load current | mA | 25 | 15 | 9 |
| Stall torque | mNm | 17.4 | 17.5 | 22.4 |
| Stall current | mA | 2140 | 1250 | 850 |
| Nominal torque | mNm | 4 | 4 | 4 |
| Nominal speed | rpm | 5310 | 6170 | 6980 |
| Nominal current | mA | 510 | 300 | 160 |
| Max. output power | W | 3.1 | 3.7 | 5 |
| Max. efficiency | % | 80 | 79 | 81 |
| Back-EMF constant | mV/rpm | 0.9 | 1.5 | 2.8 |
| Torque constant | mNm/A | 8.2 | 14.2 | 26.7 |
| Speed/torque gradient | rpm/mNm | 400 | 500 | 400 |
| Rotor inertia | gcm² | 0.6 | 0.6 | 0.6 |
| Weight | g | 32 | 32 | 32 |
| Thermal resistance housing-ambient | K/W | 22.4 | 22.4 | 22.4 |
| Thermal resistance winding-housing | K/W | 3.8 | 3.8 | 3.8 |
| Thermal time constant motor | s | 267 | 267 | 267 |
| Thermal time constant winding | s | 232 | 232 | 232 |
| Operating temperature range | °C | -20~+85 | -20~+85 | -20~+85 |
| Thermal class of winding | °C | 130 | 130 | 130 |
| Axial play | mm | 0.02~0.15 | 0.02~0.15 | 0.02~0.15 |
| Radial play | mm | 0.014 | 0.014 | 0.014 |
| Axial load dynamic | N | 0.8 | 0.8 | 0.8 |
| Axial load static | N | 30 | 30 | 30 |
| Radial load at 3 mm from mounting face | N | 1.4 | 1.4 | 1.4 |
| No. of pole pairs | 1 | 1 | 1 | |
| Bearings | 2 sleeve bearings | 2 sleeve bearings | 2 sleeve bearings | |
| Commutator | metal 9 segments | metal 9 segments | metal 9 segments | |
| 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 | 1925N9M01-69-6.0 |
|---|---|---|
| Voltage | V | 6.0 |
| Terminal resistance | Ω | 2.8 |
| No-load speed | rpm | 6900 |
| No-load current | mA | 25 |
| Stall torque | mNm | 17.4 |
| Stall current | mA | 2140 |
| Nominal torque | mNm | 4 |
| Nominal speed | rpm | 5310 |
| Nominal current | mA | 510 |
| Max. output power | W | 3.1 |
| Max. efficiency | % | 80 |
| Back-EMF constant | mV/rpm | 0.9 |
| Torque constant | mNm/A | 8.2 |
| Speed/torque gradient | rpm/mNm | 400 |
| Rotor inertia | gcm² | 0.6 |
| Weight | g | 32 |
| Thermal resistance housing-ambient | K/W | 22.4 |
| Thermal resistance winding-housing | K/W | 3.8 |
| Thermal time constant motor | s | 267 |
| Thermal time constant winding | s | 232 |
| Operating temperature range | °C | -20~+85 |
| Thermal class of winding | °C | 130 |
| Axial play | mm | 0.02~0.15 |
| Radial play | mm | 0.014 |
| Axial load dynamic | N | 0.8 |
| Axial load static | N | 30 |
| Radial load at 3 mm from mounting face | N | 1.4 |
| No. of pole pairs | 1 | |
| Bearings | 2 sleeve bearings | |
| Commutator | metal 9 segments | |
| 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 | 1925N9M02-80-12.0 |
|---|---|---|
| Voltage | V | 12.0 |
| Terminal resistance | Ω | 9.6 |
| No-load speed | rpm | 8000 |
| No-load current | mA | 15 |
| Stall torque | mNm | 17.5 |
| Stall current | mA | 1250 |
| Nominal torque | mNm | 4 |
| Nominal speed | rpm | 6170 |
| Nominal current | mA | 300 |
| Max. output power | W | 3.7 |
| Max. efficiency | % | 79 |
| Back-EMF constant | mV/rpm | 1.5 |
| Torque constant | mNm/A | 14.2 |
| Speed/torque gradient | rpm/mNm | 500 |
| Rotor inertia | gcm² | 0.6 |
| Weight | g | 32 |
| Thermal resistance housing-ambient | K/W | 22.4 |
| Thermal resistance winding-housing | K/W | 3.8 |
| Thermal time constant motor | s | 267 |
| Thermal time constant winding | s | 232 |
| Operating temperature range | °C | -20~+85 |
| Thermal class of winding | °C | 130 |
| Axial play | mm | 0.02~0.15 |
| Radial play | mm | 0.014 |
| Axial load dynamic | N | 0.8 |
| Axial load static | N | 30 |
| Radial load at 3 mm from mounting face | N | 1.4 |
| No. of pole pairs | 1 | |
| Bearings | 2 sleeve bearings | |
| Commutator | metal 9 segments | |
| 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 | 1925N9M03-85-24.0 |
|---|---|---|
| Voltage | V | 24.0 |
| Terminal resistance | Ω | 28.3 |
| No-load speed | rpm | 8500 |
| No-load current | mA | 9 |
| Stall torque | mNm | 22.4 |
| Stall current | mA | 850 |
| Nominal torque | mNm | 4 |
| Nominal speed | rpm | 6980 |
| Nominal current | mA | 160 |
| Max. output power | W | 5 |
| Max. efficiency | % | 81 |
| Back-EMF constant | mV/rpm | 2.8 |
| Torque constant | mNm/A | 26.7 |
| Speed/torque gradient | rpm/mNm | 400 |
| Rotor inertia | gcm² | 0.6 |
| Weight | g | 32 |
| Thermal resistance housing-ambient | K/W | 22.4 |
| Thermal resistance winding-housing | K/W | 3.8 |
| Thermal time constant motor | s | 267 |
| Thermal time constant winding | s | 232 |
| Operating temperature range | °C | -20~+85 |
| Thermal class of winding | °C | 130 |
| Axial play | mm | 0.02~0.15 |
| Radial play | mm | 0.014 |
| Axial load dynamic | N | 0.8 |
| Axial load static | N | 30 |
| Radial load at 3 mm from mounting face | N | 1.4 |
| No. of pole pairs | 1 | |
| Bearings | 2 sleeve bearings | |
| Commutator | metal 9 segments | |
| 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.
