The L8.520N5M is an 8.5mm mini coreless motor featuring precious metal brushes for enhanced lifetime and low electrical noise. Designed for high-speed and precision, it offers up to 43,500 rpm no-load speed and operates at voltages from 3.0 to 3.4V. Ideal for mini UAVs, RC hobby products, and compact appliances, with customizable options for leads, shaft, coil, and gearheads.
| Parameter | Unit | L8.520N5M08-375-3.0 | L8.520N5M14-435-3.4 | L8.520N5M59-367-3.0 |
|---|---|---|---|---|
| Rated voltage | V | 3.0 | 3.4 | 3.0 |
| Max. output power | W | 7.24 | 7.93 | 4.81 |
| Max. efficiency | % | 75 | 73.5 | 74.1 |
| Back-EMF constant | mV/rpm | 0.08 | 0.08 | 0.08 |
| Torque constant | mNm/A | 0.75 | 0.73 | 0.77 |
| Speed/torque gradient | rpm/mNm | 5090 | 6254 | 7336 |
| Rotor inertia | gcm² | 0.07 | 0.07 | 0.07 |
| Weight | g | 4.2 | 4.2 | 5.2 |
| Operating temperature | ℃ | -20~+120 | -20~+120 | -20~+120 |
| Outer diameter | mm | 8.5 +/- 0.1 | 8.5 +/- 0.1 | 8.5 +/- 0.1 |
| Motor length | mm | 20 +/- 0.2 | 20 +/- 0.2 | 20 +/- 0.2 |
| Terminal resistance | Ω | 0.3 | 0.35 | 0.45 |
| No-load speed | rpm | 37500 | 43500 | 36700 |
| No-load current | mA | 180 | 200 | 130 |
| Stall torque | mNm | 7.4 | 7 | 5 |
| Stall current | mA | 10000 | 9710 | 6670 |
| Load torque | mNm | 0.5 | 0.5 | 1 |
| Load speed | rpm | 34950 | 40370 | 29360 |
| Load current | mA | 850 | 880 | 1440 |
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 | L8.520N5M08-375-3.0 |
|---|---|---|
| Rated voltage | V | 3.0 |
| Max. output power | W | 7.24 |
| Max. efficiency | % | 75 |
| Back-EMF constant | mV/rpm | 0.08 |
| Torque constant | mNm/A | 0.75 |
| Speed/torque gradient | rpm/mNm | 5090 |
| Rotor inertia | gcm² | 0.07 |
| Weight | g | 4.2 |
| Operating temperature | ℃ | -20~+120 |
| Outer diameter | mm | 8.5 +/- 0.1 |
| Motor length | mm | 20 +/- 0.2 |
| Terminal resistance | Ω | 0.3 |
| No-load speed | rpm | 37500 |
| No-load current | mA | 180 |
| Stall torque | mNm | 7.4 |
| Stall current | mA | 10000 |
| Load torque | mNm | 0.5 |
| Load speed | rpm | 34950 |
| Load current | mA | 850 |
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 | L8.520N5M14-435-3.4 |
|---|---|---|
| Rated voltage | V | 3.4 |
| Max. output power | W | 7.93 |
| Max. efficiency | % | 73.5 |
| Back-EMF constant | mV/rpm | 0.08 |
| Torque constant | mNm/A | 0.73 |
| Speed/torque gradient | rpm/mNm | 6254 |
| Rotor inertia | gcm² | 0.07 |
| Weight | g | 4.2 |
| Operating temperature | ℃ | -20~+120 |
| Outer diameter | mm | 8.5 +/- 0.1 |
| Motor length | mm | 20 +/- 0.2 |
| Terminal resistance | Ω | 0.35 |
| No-load speed | rpm | 43500 |
| No-load current | mA | 200 |
| Stall torque | mNm | 7 |
| Stall current | mA | 9710 |
| Load torque | mNm | 0.5 |
| Load speed | rpm | 40370 |
| Load current | mA | 880 |
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 | L8.520N5M59-367-3.0 |
|---|---|---|
| Rated voltage | V | 3.0 |
| Max. output power | W | 4.81 |
| Max. efficiency | % | 74.1 |
| Back-EMF constant | mV/rpm | 0.08 |
| Torque constant | mNm/A | 0.77 |
| Speed/torque gradient | rpm/mNm | 7336 |
| Rotor inertia | gcm² | 0.07 |
| Weight | g | 5.2 |
| Operating temperature | ℃ | -20~+120 |
| Outer diameter | mm | 8.5 +/- 0.1 |
| Motor length | mm | 20 +/- 0.2 |
| Terminal resistance | Ω | 0.45 |
| No-load speed | rpm | 36700 |
| No-load current | mA | 130 |
| Stall torque | mNm | 5 |
| Stall current | mA | 6670 |
| Load torque | mNm | 1 |
| Load speed | rpm | 29360 |
| Load current | mA | 1440 |
Technical specifications are for guidance only, as the individual drives and motors are configured for specific applications. Subject to technical and visual changes.
