6 Advantages of Frameless Electric Motors
Key Takeaways:
- Frameless electric motors offer a compact and lightweight design, making them ideal for use in applications where space is limited.
- The absence of a frame in frameless motors leads to improved performance, greater reliability, and increased energy efficiency.
- Frameless motors can be customized to meet specific requirements, making them an ideal choice for a wide range of applications, including medical equipment, robotics, automated storage systems, and aerospace and defence.

Electric motors have been utilized for more than a century as an efficient way to power different devices. In recent years, the innovation of frameless electric motors has revolutionized the way we perceive electric motors. They are compact, lightweight, and cost-effective, providing several advantages over traditional electric motors. This article will examine the benefits of frameless electric motors and the applications they serve.
- Compact and Lightweight Design: The frameless design of electric motors eliminates the need for a traditional frame and bearings, making them much smaller and lighter. This makes them ideal for use in compact devices and systems where space is limited.
- Improved Performance: The frameless design of electric motors allows for a direct connection between the rotor and the load, improving the overall performance of the motor. This provides a more efficient and reliable solution, with a higher power density and lower weight.
- Cost-Effective: The compact and lightweight design of frameless electric motors makes them more cost-effective than traditional electric motors. This is because they use fewer materials and require less manufacturing time, resulting in lower costs for both production and transportation.
- Increased Reliability: Frameless motors have fewer moving parts than framed motors, which reduces the number of points of failure and increases reliability. Additionally, the lack of a frame means that no seams or joints can wear or crack, which reduces maintenance requirements and increases the motor’s lifespan.
- Increased Energy Efficiency: Frameless motors are often more energy-efficient than framed motors, as the absence of a frame reduces losses from friction and eddy currents. This can help to reduce energy costs and increase system efficiency.
- Greater Customizability: Frameless motors can be designed and manufactured to meet specific requirements, making them ideal for applications where customized solutions are needed. This allows for greater design flexibility and a more precise match between the motor and the application requirements.
Applications of Frameless Electric Motors:
- Medical Equipment: In the medical field, frameless electric motors are commonly used in portable devices, such as rehabilitation equipment, patient lifts, and mobility aids. The compact and lightweight design of these motors makes them ideal for use in portable devices, while the improved performance provides a safer and more efficient solution. The maxon EC 9.2 flat is perfect for medical use.
- Robotics: Frameless electric motors are widely used in robotics, providing precise and smooth movement for a range of tasks, from pick and place operations to object manipulation. The compact and lightweight design of these motors makes them ideal for use in robotics, where space is often limited.
- Automated Storage Systems: In automated storage systems, frameless electric motors provide precise and efficient movement for retrieving and storing items. The compact and lightweight design of these motors makes them ideal for use in automated storage systems, where space is often limited. Read more about the Best Motors for your Conveyor System.
- Aerospace and Defence: Frameless electric motors are commonly used in aerospace and defence applications, where weight is a critical factor. The compact and lightweight design of these motors makes them ideal for use in aerospace and defence applications, where weight is often a major concern. See more about motors for aerospace below.
In conclusion, frameless electric motors offer a compact, lightweight, and cost-effective solution for various applications. They are ideal for improving performance, efficiency, and cost-effectiveness, whether you’re looking for a solution for portable medical equipment, robotics, or aerospace and defence.