Do stepper and servo motors differ in torque?

Hello esteemed colleagues,

There is a difference in torque characteristics between stepper motors and servo motors:


Stepper Motors:

    Constant Torque: Stepper motors typically produce constant torque over a wide range of speeds, up to a certain point. After this point, torque declines as speed increases.

    Low to Moderate Torque: Generally, stepper motors are better suited for applications requiring low to moderate torque.

    Full-Step and Micro-Step: Stepper motors can operate in full-step or micro-step modes, affecting their torque output and resolution. However, the torque decreases if operated in micro-step mode.

    Open-Loop Control: Because stepper motors usually operate in an open-loop control system, there's a risk of losing steps if the motor encounters a load greater than its torque capability.

    Inefficient: They are generally less efficient at turning electrical energy into mechanical energy, especially at low speeds, meaning they may provide less torque for the same amount of electrical power compared to servo motors.

Servo Motors:

    Variable Torque: Servo motors provide variable torque, depending on the speed and the load on the motor.

    High Torque: Servo motors generally offer higher torque for a given size and are capable of maintaining high torque at higher speeds.

    Closed-Loop Control: Servo motors typically operate in a closed-loop system, providing feedback and adjusting the torque accordingly to match the load conditions.

    Efficient: They are more efficient at converting electrical energy to mechanical energy, providing more torque for the same electrical power compared to stepper motors.

    Dynamic Response: Servo motors have excellent dynamic response characteristics, allowing them to quickly adjust their speed, position, and torque.

In summary, stepper motors are often simpler and less expensive but may lack the torque and dynamic capabilities of servo motors. Servo motors are usually more complex and expensive but offer higher torque and better performance under varying load conditions.



"Torque and motors that produce torque are present in every aspect of our lives, whether in electrical or mechanical forms. We've tried to answer the most frequently asked questions about the torque capacities of electric motors below.


- What is torque motor?

- What is torque?

- What is torque boosting?

- What is torque control?

- What is the difference between torque and power?

- How is torque measured?

- What are the units of torque?

- Why is torque important when selecting a motor? 

- What advantages does a high-torque motor provide?

- What disadvantages does a low-torque motor bring?

- How is a balance between torque and speed achieved?

- What is the relationship between torque and horsepower in cars?

- What is a torque curve?

- Why do electric vehicles generally produce high torque?

- How can torque be increased?

- What is the effect of torque on mechanical systems?

- What is the relationship between torque and rotational speed?

- How are motors categorized based on their torque-producing capacity?

- What types of motors produce high torque?

- How is torque control achieved?

- What is a torque multiplier and how is it used?

- What problems can sudden torque increases cause?

- Is there a difference in torque between stepper motors and servo motors?

- Types of Torque

- What is the starting torque?

- What is a torque sensor?

- Technical measurement units

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Keep in mind, these questions can only quench general curiosities about electrically-powered motors and drive systems. Each person or student will have their own specific questions depending on their situation or application. Our answers are not definitive; they are merely a guide. Feel free to share our article, citing it as a source. If you have questions, don't hesitate to reach out to us!" 06.2019 -


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