The L8.520N7M series is a compact 8.5mm mini coreless DC motor with precious metal brushes, developed for applications demanding high efficiency, low weight, and exceptional speed stability. Key features include a wide operating temperature range, customizable shaft and lead wire lengths, and compatibility with gearheads. Ideal for mini UAVs, RC hobby applications, and compact household appliances.
| Parameter | Unit | L8.520N7M11-240-3.0 | L8.520N7M01-300-7.0 | L8.520N7M02-200-3.0 |
|---|---|---|---|---|
| Voltage | V | 3.0 | 7.0 | 3.0 |
| Terminal resistance | Ω | 0.83 | 2.3 | 0.37 |
| No-load speed | rpm | 23650 | 30300 | 39000 |
| No-load current | mA | 90 | 70 | 70 |
| Stall torque | mNm | 4.2 | 6.4 | 5.9 |
| Stall current | mA | 3610 | 3040 | 8110 |
| Load torque | mNm | 0.5 | 1 | 1 |
| Load speed | rpm | 20810 | 25570 | 32340 |
| Load current | mA | 510 | 530 | 1440 |
| Max. output power | W | 2.58 | 5.1 | 6.0 |
| Max. efficiency | % | 71.1 | 72 | 82 |
| Back-EMF constant | mV/rpm | 0.12 | 0.2 | 0.08 |
| Torque constant | mNm/A | 1.18 | 2.2 | 0.73 |
| Speed/torque gradient | rpm/mNm | 5681 | 4730 | 6660 |
| Rotor inertia | gcm² | 0.07 | 0.8 | 0.8 |
| Weight | g | 4.87 | 5 | 4.9 |
| Operating temperature range | °C | -20~+120 | -20~+80 | -20~+80 |
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 | L8.520N7M11-240-3.0 |
|---|---|---|
| Voltage | V | 3.0 |
| Terminal resistance | Ω | 0.83 |
| No-load speed | rpm | 23650 |
| No-load current | mA | 90 |
| Stall torque | mNm | 4.2 |
| Stall current | mA | 3610 |
| Load torque | mNm | 0.5 |
| Load speed | rpm | 20810 |
| Load current | mA | 510 |
| Max. output power | W | 2.58 |
| Max. efficiency | % | 71.1 |
| Back-EMF constant | mV/rpm | 0.12 |
| Torque constant | mNm/A | 1.18 |
| Speed/torque gradient | rpm/mNm | 5681 |
| Rotor inertia | gcm² | 0.07 |
| Weight | g | 4.87 |
| Operating temperature range | °C | -20~+120 |
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 | L8.520N7M01-300-7.0 |
|---|---|---|
| Voltage | V | 7.0 |
| Terminal resistance | Ω | 2.3 |
| No-load speed | rpm | 30300 |
| No-load current | mA | 70 |
| Stall torque | mNm | 6.4 |
| Stall current | mA | 3040 |
| Load torque | mNm | 1 |
| Load speed | rpm | 25570 |
| Load current | mA | 530 |
| Max. output power | W | 5.1 |
| Max. efficiency | % | 72 |
| Back-EMF constant | mV/rpm | 0.2 |
| Torque constant | mNm/A | 2.2 |
| Speed/torque gradient | rpm/mNm | 4730 |
| Rotor inertia | gcm² | 0.8 |
| Weight | g | 5 |
| Operating temperature range | °C | -20~+80 |
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 | L8.520N7M02-200-3.0 |
|---|---|---|
| Voltage | V | 3.0 |
| Terminal resistance | Ω | 0.37 |
| No-load speed | rpm | 39000 |
| No-load current | mA | 70 |
| Stall torque | mNm | 5.9 |
| Stall current | mA | 8110 |
| Load torque | mNm | 1 |
| Load speed | rpm | 32340 |
| Load current | mA | 1440 |
| Max. output power | W | 6.0 |
| Max. efficiency | % | 82 |
| Back-EMF constant | mV/rpm | 0.08 |
| Torque constant | mNm/A | 0.73 |
| Speed/torque gradient | rpm/mNm | 6660 |
| Rotor inertia | gcm² | 0.8 |
| Weight | g | 4.9 |
| Operating temperature range | °C | -20~+80 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
