5000W 140KV 4-12S Outrunner Sensored BLDC Motor

140KV brushless DC electric motor paired with a controller at an affordable price. Optional pulley add-on available. This 5kW inrunner BLDC motor supports 4–12S battery voltage, delivers 10 N·m high torque, and comes with 8mm or 10mm shaft options—perfect for powering electric skateboards, longboards, and mountainboards.

Specification

Note: The motor is powered by 4-14S 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: If you need to learn more details about ESC controller, please contact us.

Details

Dimension (Unit: mm)

Applications

Electric Skateboard

Car Model

Robot Model

Off-road Kart

Q: How to choose the right KV rating for an outrunner BLDC motor?

A: Choosing the right KV rating for an outrunner motor depends on your application, battery voltage, and desired speed versus torque. A higher KV motor spins faster per volt but produces less torque, suitable for lightweight, high-speed uses like drones or small electric vehicles. A lower KV motor provides more torque at lower speeds, ideal for heavy loads or applications like electric skateboards and RC cars. Consider your battery voltage, propeller or wheel size, and required performance to match KV with the right balance of speed, torque, and efficiency. The motor is a BLDC motor, offering high efficiency and low maintenance.