4000W 190KV 4-13S Outrunner Sensored BLDC Motor

4000W sensored outrunner brushless DC motor with 190KV speed rating, delivering up to 95A current and powered by 4-13S (DC 14-48V). Designed for high torque output, it features an 8mm/10mm shaft diameter, excellent insulation, high efficiency, and strong heat resistance for reliable long-term performance.

Specification

Note: The motor is powered by 4-13S batteries, S is the number of batteries, voltage of every battery is 3.7V DC.

ESC (Electronic Speed Controller) Selection for Waterproof BLDC Motor

• A BLDC motor can be used with an ESC as long as its speed does not exceed the ESC’s limit.
• BLDC motor speed = Battery Voltage × KV value;
  Stator speed = Battery Voltage × KV value × Pole Pairs.
• The maximum speed limit of the V4 series ESC is 60,000 ERPM.
  The maximum speed limit of the V6 series ESC is 150,000 ERPM.
• If a BLDC motor’s maximum speed surpasses the ESC’s limit, it is possible to match them by lowering the motor’s operating voltage. However, this is not recommended, as it prevents the motor from functioning as a true brushless DC motor.

ESC (Electronic Speed Controller) Specification

Note: The ESC model with * is the recommended controller for this page of motor, if you need other ESC models, please contact us.

Details

8mm Shaft Brushless DC Motor Dimension (Unit: mm)

 10mm Shaft Brushless DC Motor Dimension (Unit: mm)

Applications

Electric Skateboard

Car Model

Robot Model

Off-road Kart

Q: What is an outrunner BLDC motor?

A: A BLDC motor in the outrunner configuration works by having its stator with stationary windings fixed at the center and its rotor, which carries permanent magnets, mounted on the outside shell. When current flows through the stator windings, a rotating magnetic field is created, which interacts with the magnets on the rotor and makes the outer casing spin around the stator. Because the rotor has a larger diameter, the motor produces higher torque at lower speeds, making it efficient for direct-drive applications such as drones, e-bikes, and robotics.