The 1331N7M series is a 13mm micro DC coreless motor, featuring precious metal commutation for efficient performance and low electrical noise. Designed for precision drives, this compact motor offers customizable options including shaft length, special coils, bearing type, and gear heads. Ideal for medical devices, robotics, industrial automation, and healthcare applications demanding reliability and smooth operation.
| Parameter | Unit | 1331N7M02-110-6.0 | 1331N7M03-148-12.0 | 1331N7M01-96-24.0 |
|---|---|---|---|---|
| Voltage | V | 6.0 | 12.0 | 24.0 |
| Terminal resistance | Ω | 2.6 | 5.0 | 38 |
| No-load speed | rpm | 11000 | 14800 | 9200 |
| No-load current | mA | 25 | 40 | 8 |
| Stall torque | mNm | 11.8 | 18 | 15.3 |
| Stall current | mA | 2310 | 2400 | 630 |
| Nominal torque | mNm | 2 | 4 | 4 |
| Nominal speed | rpm | 9130 | 11510 | 6790 |
| Nominal current | mA | 410 | 570 | 170 |
| Max. output power | W | 3.39 | 6.97 | 3.69 |
| Max. efficiency | % | 80 | 76 | 79 |
| Back-EMF constant | mV/rpm | 0.5 | 0.8 | 2.6 |
| Torque constant | mNm/A | 5.2 | 7.6 | 24.6 |
| Speed/torque gradient | rpm/mNm | 900 | 800 | 600 |
| Rotor inertia | gcm² | 0.52 | 0.52 | 0.52 |
| Weight | g | 20 | 20 | 20 |
| Thermal resistance housing-ambient | K/W | 34.8 | 34.8 | 34.8 |
| Thermal resistance winding-housing | K/W | 38.6 | 38.6 | 38.6 |
| Thermal time constant motor | s | 211 | 211 | 211 |
| Thermal time constant winding | s | 163 | 163 | 163 |
| 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 7 segments | metal 7 segments | metal 7 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 | 1331N7M02-110-6.0 |
|---|---|---|
| Voltage | V | 6.0 |
| Terminal resistance | Ω | 2.6 |
| No-load speed | rpm | 11000 |
| No-load current | mA | 25 |
| Stall torque | mNm | 11.8 |
| Stall current | mA | 2310 |
| Nominal torque | mNm | 2 |
| Nominal speed | rpm | 9130 |
| Nominal current | mA | 410 |
| Max. output power | W | 3.39 |
| Max. efficiency | % | 80 |
| Back-EMF constant | mV/rpm | 0.5 |
| Torque constant | mNm/A | 5.2 |
| Speed/torque gradient | rpm/mNm | 900 |
| Rotor inertia | gcm² | 0.52 |
| Weight | g | 20 |
| Thermal resistance housing-ambient | K/W | 34.8 |
| Thermal resistance winding-housing | K/W | 38.6 |
| Thermal time constant motor | s | 211 |
| Thermal time constant winding | s | 163 |
| 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 7 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 | 1331N7M03-148-12.0 |
|---|---|---|
| Voltage | V | 12.0 |
| Terminal resistance | Ω | 5.0 |
| No-load speed | rpm | 14800 |
| No-load current | mA | 40 |
| Stall torque | mNm | 18 |
| Stall current | mA | 2400 |
| Nominal torque | mNm | 4 |
| Nominal speed | rpm | 11510 |
| Nominal current | mA | 570 |
| Max. output power | W | 6.97 |
| Max. efficiency | % | 76 |
| Back-EMF constant | mV/rpm | 0.8 |
| Torque constant | mNm/A | 7.6 |
| Speed/torque gradient | rpm/mNm | 800 |
| Rotor inertia | gcm² | 0.52 |
| Weight | g | 20 |
| Thermal resistance housing-ambient | K/W | 34.8 |
| Thermal resistance winding-housing | K/W | 38.6 |
| Thermal time constant motor | s | 211 |
| Thermal time constant winding | s | 163 |
| 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 7 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 | 1331N7M01-96-24.0 |
|---|---|---|
| Voltage | V | 24.0 |
| Terminal resistance | Ω | 38 |
| No-load speed | rpm | 9200 |
| No-load current | mA | 8 |
| Stall torque | mNm | 15.3 |
| Stall current | mA | 630 |
| Nominal torque | mNm | 4 |
| Nominal speed | rpm | 6790 |
| Nominal current | mA | 170 |
| Max. output power | W | 3.69 |
| Max. efficiency | % | 79 |
| Back-EMF constant | mV/rpm | 2.6 |
| Torque constant | mNm/A | 24.6 |
| Speed/torque gradient | rpm/mNm | 600 |
| Rotor inertia | gcm² | 0.52 |
| Weight | g | 20 |
| Thermal resistance housing-ambient | K/W | 34.8 |
| Thermal resistance winding-housing | K/W | 38.6 |
| Thermal time constant motor | s | 211 |
| Thermal time constant winding | s | 163 |
| 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 7 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.
