The 820 High-Speed Micro Coreless Motor with Propellers is the ultimate power solution for ultra-lightweight aerial projects. At Electrapac, we recommend this motor-propeller combo for hobbyists building DIY micro-drones, palm-sized quadcopters, and high-velocity experimental aircraft.

Product Overview

Unlike standard DC motors, Coreless Motors feature a rotor that is wound in a honeycomb shape without a heavy iron core. This allows for incredibly fast acceleration and an insane top speed of 45,000 RPM. This kit comes as a matched pair (2 motors and 2 propellers), specifically balanced to provide maximum thrust-to-weight ratio for 55mm rotor platforms.

Key Features for Electrapac Customers

• Instant Acceleration: The "Coreless" design means there is very little inertia, allowing your drone to react to flight controller commands in milliseconds.

• Neodymium Magnets: Uses rare-earth magnets to maintain high torque and RPM even under the load of the 55mm propellers.

• Balanced Thrust: The included 55mm propellers are precision-molded to reduce vibration, extending the life of the motor bearings and improving flight stability.

• Plug-and-Play Wiring: Comes with pre-soldered, color-coded flexible wires (typically Red/Blue and Black/White) to help you identify rotation direction easily.

• High Efficiency: Optimized for 3.7V, making it perfectly compatible with standard 1S Lithium Polymer (LiPo) batteries found at www.electrapac.com.

Installation & Pro-Tip

When building your micro-flier with parts from Electrapac, pay close attention to the wire colors:

• Clockwise (CW): Usually Red (+) and Blue (-).

• Counter-Clockwise (CCW): Usually Black (-) and White (+).

Pro-Tip: Because these motors spin at 45,000 RPM, they generate heat quickly. Ensure your drone frame allows for airflow around the motor body, and avoid running them at 100% throttle for extended periods while stationary on a workbench.

Primary Applications

• Micro Quadcopters: The standard replacement or upgrade motor for 75mm-95mm wheelbase "Whoop" style drones.

• Bionic Birds/Flappers: Powering ornithopter projects that require rapid reciprocating wing movements.

• High-Speed RC Planes: Ideal for ultra-light indoor foam flyers.

• Science Experiments: Demonstrating centrifugal force, airflow, or electromagnetic induction in classroom settings.

Why Shop at Electrapac?

We source our 820 Coreless Motors with high-purity copper windings to ensure they don't burn out under high-stress flight conditions. At www.electrapac.com, we provide the high-velocity components that get your ideas off the ground.