Description
MPN: ENT-UMAC-3115-900
Manufacturer: Unusual Machines
The Unusual Machines UM3115 900KV Motor is an endurance-focused UAV motor designed for high efficiency, thermal stability, and predictable performance under sustained load. Built for 6S power systems, the UM3115 900KV delivers consistent torque output and thermal margin suited to extended flight profiles and enterprise-grade UAV platforms.
Its optimized 900KV winding prioritizes endurance and efficiency, while the 12N14P stator and rotor configuration and precision EZO 695ZZ bearings support smooth, reliable rotation. High thermal tolerance makes it well suited to professional multirotor applications requiring dependable sustained operation.
Key Features
| Feature | Details |
|---|---|
| KV Rating | 900KV |
| Power System | 5S–6S |
| Design Focus | Endurance and efficiency |
| Stator / Rotor Configuration | 12N14P |
| Thermal Performance | High thermal tolerance for sustained operation |
| Bearings | Precision EZO 695ZZ |
| Application | Enterprise and professional UAV platforms |
Technical Specifications
| Parameter | Specification |
|---|---|
| KV Rating | 900 KV |
| Stator Teeth / Magnetic Poles | 12N14P |
| Winding Configuration | 7T |
| Maximum Voltage | 25.2V (5S–6S) |
| Maximum Current | 65A for 3 seconds |
| Maximum Rotor Temperature | 100°C |
| Specification | 180°C |
| Bearings | EZO 695ZZ |
Motor Parameters
| Parameter | Specification |
|---|---|
| No-Load Current (Io @ 10V) | 1.3A |
| Winding Resistance (Rm) | 48 mΩ |
| Line Inductance | 18 µH |
Physical Properties
| Parameter | Specification |
|---|---|
| Weight, Excluding Wires | 113.1g |
| Weight, Including 3 × 20cm 16AWG Wires | 119.2g |
| Overall Length | 49.4mm |
| Body Length | 31.4mm |
| Shaft Diameter | 5mm |
| Motor Diameter | 39.9mm |
| Mounting Pattern | 4 × M3, PCD Ø19mm |



