550W Brushless Motor 20-40V Neodymium 3200RPM High Torque
550W Brushless Motor 20-40V Neodymium 3200RPM High Torque
550W High-Power Brushless Motor with Neodymium Magnets — 20–40V, 3200RPM
Upgrade your DIY power project with this robust 550W high-torque brushless motor. Engineered with thickened arc neodymium strong magnets and precision ball bearings at both ends, this motor delivers exceptional efficiency, smooth rotation, and reliable high-current performance across a wide voltage range of 20–48V.
Key Features
- Wide Voltage Range: Rated at 40V/550W, tested and operable from 20V to 48V for flexible application compatibility.
- Neodymium Strong Magnets: Thickened arc neodymium magnets provide superior magnetic flux for high torque output and efficient power conversion.
- Sensorless (Hall-Free) Design: Compatible with brushless electric aircraft speed controllers (ESCs) or sensorless electric vehicle controllers — no Hall sensors required.
- Robust Copper Wiring: Each phase output line features four 0.75mm copper wires bundled together for reliable high-current operation.
- Dual Ball Bearings: Front and rear ball bearings ensure smooth, stable, and long-lasting rotation even under load.
- High-Torque Low-Speed Design: Ideal for retrofit power drives originally intended for lithium battery garden machinery and power tools.
- Motor Weight: Approximately 1.65 kg — solidly built yet manageable for installation.
Specifications
| Rated Voltage | 40V (operable 20–48V) |
| Rated Power | 550W |
| No-Load Speed | ~3200 RPM (at rated voltage) |
| Magnet Type | Neodymium (Thickened Arc) |
| Bearings | Ball bearings (front & rear) |
| Motor Type | Sensorless Brushless (Hall-Free) |
| Phase Wire | 0.75mm × 4 copper wires per phase |
| Motor Weight | ~1.65 kg |
| Country of Origin | Made in China (Mainland) |
Compatible Controller Types
This brushless motor requires an external driver/controller (not included). It is compatible with:
- Electric vehicle dual-mode intelligent brushless controller (sensorless mode)
- RC aircraft/model brushless ESC (Electronic Speed Controller)
Note: The controller/driver must be purchased separately.
Common Applications
- Lithium-battery garden machinery & power tool retrofits
- DIY electric vehicle and e-bike conversions
- RC model aircraft and ground vehicle power systems
- Custom robotics and mechanical automation projects
- Industrial prototype and maker lab builds
Package Includes
- 1× 550W Brushless Motor
Important Notes:
- Due to lighting and screen variation, actual product color may differ slightly from images.
- Please allow ±1–10mm tolerance due to manual measurement.
- Battery and controller are NOT included and must be sourced separately.
For general electrical safety guidelines relating to motors and power tools, visit OSHA Electrical Safety.
Frequently Asked Questions
Q: Does this 550W brushless motor include a controller or battery?
A: No — the motor is sold as a standalone unit. You will need to purchase a compatible brushless controller (ESC) and power source separately. It works with sensorless electric vehicle controllers or RC aircraft-type brushless ESCs.
Q: What voltage range does this brushless motor support?
A: The motor is rated at 40V/550W, but has been tested and confirmed to run on voltages ranging from 20V to 48V, giving you flexibility when integrating it into various power systems.
Q: Is this motor suitable for DIY e-bike or electric vehicle projects?
A: Yes. This high-torque sensorless brushless motor is well-suited for retrofit power drives, e-bike conversions, DIY electric vehicles, and lithium battery-powered garden machinery builds where a durable, high-power motor is needed.
Q: What makes neodymium magnets better in a brushless motor?
A: Neodymium magnets offer a much higher magnetic flux density compared to standard ferrite magnets. This translates to greater torque output, improved energy efficiency, and a more compact motor design — all critical advantages for high-performance brushless motor applications.