Finished BLDC drone motors and quasi-direct-drive actuators — built size-for-size on the Gwaihir Robotics stator stack, assembled and tested in Virginia.
Gwaihir Robotics onshores the components — stator lamination stacks, extruded rotor shells, and the machinery that winds them. BLDC USA turns those components into finished motors you can bolt to an airframe or a joint.
Every BLDC USA frame size maps one-to-one onto a Gwaihir catalog stator. Same diameter, same slot count, same silicon steel. If you already designed around an American Stator SKU, the matching motor is a drop-in — and if you fly our motor first, the bare stator and shell are always available for your own line.
Four propulsion motors for airframes from tiny-whoop to cargo class, and two frameless-plus-geared actuator modules for robots that walk and lift.
Pick a stator diameter once. Buy the bare stack from Gwaihir or the finished motor from us — the geometry never changes underneath you.
The table below is the whole compatibility story. One row per frame size: our motor or actuator, the American Stator stack inside it, and the rotor extrusion around it.
| BLDC USA P/N | Class | Stator ⌀ | Config | Gwaihir stator | Gwaihir rotor shell |
|---|---|---|---|---|---|
| BU-32 | Micro FPV motor | 32 mm | 12N14P | AS-32-12 | RE-32-14 |
| BU-35 | FPV / freestyle motor | 35 mm | 12N14P | AS-35-12 | RE-35-14 |
| BU-43 | Sub-1 kg / gimbal motor | 43 mm | 24N22P | AS-43-24 | RE-43-22 |
| BU-60 | Heavy-lift motor | 60 mm | 24N22P | AS-60-24 | RE-60-22 |
| QA-81 | QDD limb actuator | 81 mm | 36N40P | AS-81-36 | RE-81-40 |
| QA-100 | QDD hip / cobot actuator | 100 mm | 36N42P | AS-100-36 | RE-100-42 |
Gwaihir serves companies that wind their own. We serve everyone who would rather bolt on a tested assembly.