4000KV BLDC Motor for RC Boat

This 4000KV brushless DC motor is built for high-performance RC boats, delivering strong thrust, fast acceleration, and reliable speed. It features ultra-thin 0.2mm stator laminations and high-purity copper windings for efficient power output and reduced heat. A precision-balanced rotor ensures smooth operation, while the integrated automatic water-cooling system helps maintain optimal temperature. Compact and rated for up to 120A, it’s ideal for demanding RC marine use.

Specification

Features

 

• 4000KV motor with 4-pole 12-slot design.
• CNC-machined 6061-T6 aluminum heat sink.
• High-purity copper winding.
• Oversized ABEC5 high-speed bearings.
• Precisely balanced rotor, high-speed stability and reduces vibration.
• Ultra-thin 0.2mm stator laminations.
• Removable and replaceable rotor design.
• Precision engineering for high energy conversion.

Dimension (Unit: mm)

Applications

Remote-Controlled Boat

Toy Gun

Robot Vacuum

Drone

Q: Is cooling necessary for RC boats?

A: Yes, cooling is often necessary for RC boats, especially those with powerful electric or nitro engines. During operation, the BLDC motor and electronic speed controller (ESC) can generate a lot of heat. Without proper cooling, these components might overheat, which can lead to reduced performance or even permanent damage. Many RC boats use water-cooling systems that circulate water from the lake or pond through the motor or ESC to keep temperatures under control.