Product overview
The BrotherHobby Returner R7 4008 Motor is a propulsion motor with a 490KV rating and a 24N28P configuration. Its physical construction combines an AI 7075 base casing and bell cap with a hollow titanium alloy shaft. The stator uses 0.2mm Kawasaki silicon steel, while the rotor incorporates an N52H arc magnet. Japanese NMB bearings are specified as 17X6X6. These details define the motor’s construction alongside its electrical rating and mechanical interfaces.
For installation, the motor has an M4 bolt pattern at 30X30mm and an M6 propeller adapter shaft thread. Its stated battery configuration is 6-8S LiPo, making that cell range a relevant electrical integration requirement. Weight is 117g with 50cm wire. The separate wire specification lists 20# AWG and 400mm length; those two wire lengths differ, so the weight qualification and wire-length specification should remain distinct when assessing the motor’s wiring configuration.
Specifications
| Specification | Value & conditions |
|---|---|
| Motor KV | 490KV |
| Base casing | AI 7075 |
| Stator | 0.2mm Kawasaki silicon steel |
| Motor configuration | 24N28P |
| Propeller adapter shaft thread | M6 |
| Shaft | Titanium alloy hollow shaft |
| Cell count | 6-8SLiPo battery configuration. |
| Bolt pattern | M4(30X30mm) |
| Bearings | Japanese NMB 17X6X6 |
| Rotor magnet | N52H arc magnet |
| Weight | 117gWith 50cm wire. |
| Wire gauge and length | 20#, 400mm length |
| Bell cap | AI 7075 |
