The Reasons For Using Yokeless Axial Flux Motor Stators in Electric Vehicles

One crucial component that significantly influences the performance of electric vehicles is the motor stator. Traditional motors have served their purpose well, but the emergence of yokeless axial flux motor stators has sparked a revolution in the EV industry. In this blog post, we delve into the reasons why yokeless axial flux motor stators are increasingly favored for electric vehicles.

yokeless axial flux motor stators

Advantages Of Yokeless Axial Flux Motor Stators

Simple Structure

The design of the stator in the yokeless axial flux motor is notably straightforward. Unlike traditional motors, it lacks collector rings and brushes, effectively minimizing mechanical friction and losses. This streamlined structure not only enhances the motor’s reliability but also extends its service life, marking a significant advancement in electric motor technology.

Higher Efficiency

Efficiency is paramount for electric vehicles, and yokeless axial flux motor stators excel in this regard. Their unique design facilitates a more uniform distribution of the magnetic field, effectively mitigating eddy current and hysteresis losses.

As a result, the motor operates at peak efficiency, maximizing energy utilization while minimizing wastage. This efficiency translates into extended driving range for electric vehicles, making them more practical and appealing to consumers.

Energy Saving

The symbiotic relationship between efficiency and energy conservation is a defining feature of yokeless axial flux motor stators. By minimizing energy losses and optimizing performance, these stators enable electric vehicles to operate more sustainably.

The reduced energy consumption not only benefits the environment by lowering carbon emissions but also translates into tangible cost savings for EV owners.

Simple Maintenance

Thanks to its uncomplicated design, the stator of the yokeless axial flux motor demands minimal maintenance. Routine tasks such as cleaning and lubrication suffice, significantly enhancing the motor’s reliability and lifespan.

This simplicity in maintenance not only reduces operational complexities but also ensures consistent performance over time, making the yokeless axial flux motor a preferred choice for electric vehicle applications.

High Reliability

The design of the yokeless axial flux motor stator greatly contributes to its high reliability. With simplified maintenance procedures such as routine cleaning and lubrication, the stator ensures consistent performance over time.

Strong Adaptability

The design of the yokeless axial flux motor stator offers remarkable adaptability for electric vehicles. It enables seamless integration with various motors and control systems, catering to diverse application scenarios and meeting specific requirements.

This flexibility ensures that electric vehicles can be optimized for performance, efficiency, and suitability across a range of driving conditions, enhancing their versatility and appeal in the rapidly evolving automotive industry.

Reduced Need For Cooling

The power density of your electric motor is strongly related to the performance of its cooling system. In a yokeless axial flux motor, the cooling is aided through self-ventilation of the rotor discs. Similar to axial flux designs, yokeless axial flux designs have no end-turn effect – further reducing the source of heat.

The inherent reduction of eddy current losses with SMCs further reduce the need for large and costly cooling systems – reducing overall heat while increasing overall performance.

High Safety

The design of the yokeless axial flux motor stator prioritizes safety by enhancing the stability of electric vehicles and reducing operational noise. This results in a smoother and quieter ride, significantly improving the comfort and safety for both drivers and passengers.

By minimizing distractions and ensuring a stable driving experience, the yokeless axial flux motor stator contributes to a safer journey, underscoring its importance in the advancement of electric vehicle technology.

Choose Yokeless Axial Flux Motor Stators Manufacturer

Motorneo has focused on the development of disc stator technology for many years. After years of R&D investment, it currently has multiple independently designed and developed disc stator stamping and winding systems, which can meet the daily production capacity demand of 1,000 PCs.

Motorneo employs superior electrical steel and soft magnet composite to produce Yokeless axial flux motor stators (SMC). Our axial flux stators export all over the world with dimensions from 25mm to 950mm. In addition, we offer an axial flux stator lamination prototype.


In conclusion, the adoption of yokeless axial flux motor stators represents a paradigm shift in the electric vehicle industry. Their myriad benefits, including simple structure, high efficiency, energy-saving capabilities, simple maintenance, high reliability, strong adaptability, and enhanced safety, position them as the cornerstone of modern electric vehicle design.

As the demand for sustainable transportation solutions continues to rise, yokeless axial flux motor stators will become more and more popular.


What is a Yokeless Axial Flux Motor?

A Yokeless Axial Flux Motor is an innovative electric motor design characterized by its unique configuration. Unlike conventional radial flux motors, SMCs lack the traditional iron core, which reduces weight and increases efficiency. 

In a yokeless axial flux motor, the flux travels from one stator tooth to another stator tooth, creating a magnetic field – which interacts with the magnetic field(s) on the rotor.In a yokeless axial flux motor, the flux travels from one stator tooth to another stator tooth, creating a magnetic field – which interacts with the magnetic field(s) on the rotor.

They utilize a coreless axial flux technology design, where the magnetic flux flows parallel to the motor shaft. This design minimizes losses, enhances power density, and improves overall performance. Yokeless Axial Flux Motors are particularly suitable for applications where compact size, high efficiency, and reliability are paramount.

Why Choose Yokeless over Regular Axial Flux Motors?

The design of a yokeless axial flux motor allows for higher power and torque density, with reduced weight, space volume, and electrical consumption. This also allows for total weight savings due to the reduced mass of the motor – there is a multiplying effect of reduced battery mass and reduced structural mass.

How does a Yokeless Axial Flux Motor Stator differ from conventional radial flux stators?

Unlike conventional stators, which utilize an iron core to guide magnetic fields, Yokeless axial flux motor stators employ a coreless design. This innovation reduces weight, minimizes losses, and enhances performance, making it ideal for various applications, especially in electric vehicles and renewable energy systems.

What applications are suitable for Yokeless Axial Flux Motor Stators?

Yokeless axial flux motor stators find applications in electric vehicles, wind turbines, robotics, aerospace, industrial machinery, and more. These motors offer advantages such as higher torque density, improved efficiency, compact design, and reduced weight. They are particularly well-suited for applications where space and weight constraints are critical, and where high efficiency and power density are required.

Try to contact us for high-quality motor cores in China.