5kW Air Cooled BLDC Motor for Electric Vehicle

High-performance 5kW BLDC motor with an air cooling system, designed for reliable operation and efficient heat dissipation. This brushless DC motor delivers a rotational speed of 3700rpm and is available with voltages of 24V, 36V, 48V, and 72V, ensuring compatibility with a wide range of applications. The air-cooled design eliminates the need for additional cooling equipment, making it easy to install and maintain while providing consistent performance.

Specification

Features

 

• This 5kW 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 air-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, an air-cooling system offers the most practical and efficient cooling solution.

Dimension (Unit: mm)

Applications

Electric Car

Golf Cart

Motorcycle

ATV

Q: Is an air-cooled BLDC motor efficient enough for long-distance or high-speed electric vehicles?

A: Air-cooled BLDC motors can be efficient, but their suitability for long-distance or high-speed electric vehicles depends on the specific operating conditions. In light vehicles such as scooters, e-bikes, or city commuter cars, air cooling is usually sufficient because the load and speed demands are moderate, and continuous high power output is not required. However, in long-distance or high-speed vehicles, brushless DC motors operate under sustained heavy loads and generate significant heat. Without a liquid cooling system to actively transfer heat away, an air-cooled motor may struggle to maintain optimal temperatures, leading to reduced efficiency, thermal derating, or even overheating over time. Engineers can improve performance with design features like heat sinks, ventilation ducts, or auxiliary fans, but these solutions have limits. For heavy-duty or long-range applications, liquid-cooled BLDC motors are generally preferred. Thus, air-cooled motors are best suited for shorter trips, urban mobility, and lower-power electric vehicles.