3kW Water Cooled BLDC Motor for Electric Vehicle

3kW BLDC motor is designed for electric vehicles, offering reliable performance for daily use. The water-cooled brushless DC motor provides a 48V/60V/72V rated voltage and 10 N·m of rated torque. With its high torque-to-weight ratio, this electric car motor plays a key role in delivering strong power while keeping the vehicle lightweight. Paired with a motor controller, it ensures the car maintains sufficient torque without adding extra weight.

Specification

Features

 

• This 3kW brushless DC motor is engineered with a compact form, water-resistant protection, a durable stainless steel shaft, and an integrated self-cooling fan for reliable performance.
• The water-cooled design makes this BLDC motor straightforward to implement, eliminating the need for additional cooling equipment.
• When building an electric motorcycle with abundant natural airflow, a water-cooling system offers the most practical and efficient cooling solution.

Dimension (Unit: mm)

Applications

Electric Car

Golf Cart

Motorcycle

ATV

Q: How does water cooling improve the efficiency and lifespan of a BLDC motor?

A: Water cooling improves the efficiency and lifespan of a brushless DC (BLDC) motor by effectively removing excess heat generated during operation. BLDC motors produce heat from copper losses in the windings, core losses in the laminations, and friction in bearings. Without proper cooling, high temperatures can increase winding resistance, lower efficiency, and accelerate insulation breakdown. Water cooling provides a more efficient thermal management method than air cooling, as water has a higher heat capacity and thermal conductivity. By maintaining a stable operating temperature, water cooling reduces the risk of overheating, prevents demagnetization of permanent magnets, and extends bearing and insulation life. Additionally, it enables the motor to handle higher power densities and continuous loads without performance degradation. The result is greater reliability, longer service life, and improved efficiency, making water-cooled BLDC motors ideal for demanding applications such as electric vehicles, marine propulsion, and industrial automation.