400KV BLDC Drone Motor

High-efficiency 400KV/650KV brushless motors designed for rotary-wing drones. These powerful drone motors feature a 4–6S rated voltage and a 4 mm shaft diameter. By varying the relative rotation speed of the propellers, the brushless motor precisely adjusts thrust and torque to control hovering, turning, and stable flight of multirotor drones.

Specification

Features

• 400KV/650KV brushless drone motors are engineered for long-duration flights on multi-rotor drones, delivering ample torque at low RPM while maintaining peak efficiency throughout the flight.
• Patented Stepped and Knurled design keeps motors secure and ensures stable power output.
• To optimize strength and reduce weight, the V motor caps are extensively hollowed, maximizing the thrust-to-weight ratio and extending flight time.
• Each brushless drone motor undergoes rigorous dynamic balancing. Axial and radial runouts are strictly tested to design specifications, with performance variations controlled within 3%, guaranteeing precise and stable power for professional use.

Dimension (Unit: mm)

Applications

Aerial Mapping

Agriculture

Logistics and Transportation

Security Patrol

Q: How to maintain a BLDC drone motor?

A: To properly maintain a BLDC drone motor, regularly clean it to remove dust and debris, avoid exposure to water or moisture, and inspect bearings, magnets, and wiring for wear, damage, or looseness. Ensure the bearings are lubricated if they are not sealed, check that the BLDC motor spins smoothly without unusual noise or vibration, and verify that screws and connectors are tight. Proper storage in a dry environment and avoiding overloading the motor during flight will also help extend its lifespan and maintain optimal performance.