Product overview
The FLASH HOBBY MT3515 is a brushless DC outrunner motor offered in a 400KV configuration, with custom KV options. Its applications include racing drones, agricultural equipment and radio-controlled aircraft. The motor combines a 12N14P electromagnetic configuration with 48SH magnets and a CNC-machined 6061-T6 aluminum bell. Construction features also include high-temperature-resistant copper wire windings and imported NSK/NMB bearings described for high-RPM operation. A precision rotor balancing test is specified for the rotor.
The MT3515 measures 42 x 33.4mm and weighs 158.0g including its cables. Its mechanical interfaces comprise a 4.0mm shaft and a 19*25mm motor mount designated M3*4. The motor cables are 18#AWG and 220mm long. Custom orders can specify an extended shaft, rotor housing color and exterior appearance as well as KV. The minimum order is 50 units for standard products and 500 units for custom products.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer | HUIZHOU FLASHHOBBY TECHNOLOGY CO.,LTD |
| Brand | FLASH HOBBY |
| Model | MT3515 |
| Motor type | Brushless outrunner motor |
| Applications | Agricultural applications, racing drones and radio-controlled aircraft |
| KV rating | 400KV or custom KV |
| Weight | 158.0gIncluding the cables. |
| Motor size | 42 x 33.4mm |
| Shaft diameter | 4.0mm |
| Motor mount | 19*25mm(M3*4) |
| Motor configuration | 12N14P |
| Motor cable | 18#AWG 220mm |
| Magnet grade | 48SH |
| Rotor balancing | Precision rotor balancing test |
| Motor bell | CNC-machined 6061-T6 aluminum bell |
| Bearings | High-RPM imported NSK/NMB bearings |
| Winding | High-temperature-resistant copper wire winding |
| Customization options | Custom KV, extended shaft, rotor housing color and exterior appearanceCustom orders. |
| Minimum order quantity | 50 unitsStandard products. |
| Minimum custom order quantity | 500 unitsCustom products. |



