6 Best CNC Servo Motors Reviews

Disclaimer: All claims are strictly my personal opinion. As an Amazon Associate, I may earn from qualifying purchases.

A servo motor helps you to get precise motion control. A servo motor is responsible for delivering high speeds, high acceleration, and high torque within a CNC machine to provide you the most accurate and precise results.

Whether it’s an industrial application like milling or drilling several materials or commercial applications such as the latest robotics mechanism, a servo motor is a driving force behind it.

With this being said, you must have seen that servo motors are used in tools where precision is required the most.

If you’re also looking for high-speed motion control, get a servo motor to make your dream project efficient and flawless.


Here are my recommended products picked out through amazon you would be interested in depending on your budget…

4PCS Servo Motor MG995 Control Angle180 Metal Gear Servo...
4PCS Servo Motor MG995 Control Angle180 Metal Gear Servo...
This high-speed standard servo motor can rotate 180 degrees (90 in each direction).

7 Best CNC Servo Motors Reviews

Below, we have reviewed the 7 best CNC servo motors that you could choose from. All of these servo motors are best by their features, specifications, and functions.

Here is my list of the Best CNC Servo Motors in 2021;

1. GOWE Delta CNC Servo Motor

  • Brand: GOWE
  • Weight: 0.8kg
  • Modulation: Digital
  • Driving type: AC
  • Responsive frequency: 450Hz
  • Maximum speed: 5000 r/min

See at Amazon!

What we Like!
  • Wide power range.
  • Several motion control functionalities.
  • Connectivity with HMI and PLC interfaces.
  • Connectivity with various inertia motors.
  • Great for industrial machinery applications.
Things to Consider!
  • Needs proper maintenance.


GOWE servo motors are unbeatable motors that are used in several machinery tools and the manufacturing industries.

Be its a CNC milling machine or a lathe, a winding machine, or a sealing or feeding machine, this will cover your machining.

With advanced functions, this servo motor by GOWE can perform the job while delivering constant and accurate results.

This servomotor shares all the similarities with the above-mentioned model, yet it is somehow more costly and sleeker in design.

As far as its performance is concerned, the features of this motor have got better and made it one of the best digital servo motor choices on our list.

Don’t get intimidated if a certain squeaky sound starts after thousands of cycles and revolutions. This happens when there is less lubrication between the parts of the motor.

By lubricating properly, you can prevent this servo motor from wear and tear.

Overall, a nice servo for industrial-grade applications.

2. Digital High Speed Torque Servo Motor

  • Brand: DeeGoo-FPV
  • Gear type: Metal
  • Weight: 1.94 oz
  • Operation voltage: 3.0V-7.2V
  • Modulation: Digital

See at Amazon!

What we Like!
  • Ball-bearing design.
  • 30 mm connector wire.
  • Shockproof double coreless motor.
  • Compatible with RC robotics.
  • Best for the price.
Things to Consider!
  • Makes a grinding sound.
  • Not ideal for Aurdino.


What if you get 4 mid-power servos at a price that requires no cutting down your expenses. These are such types of servos that are great for light duty projects.

Unlike a servo that comes with plastic gear and may strip out too often, this one is durable due to its metal gears. But be mindful that even its brass gear may strip out under heavy use.

But again, for this price range, these are the best and powerful servo models you can have for your RC vehicles.

Another impressive feature of this servo is its stable and heavy-duty construction. Its shockproof coreless motor comes with a 300mm connector wire suitable for most receiver connectors, including HiTec, Sanwa, GWS, and Futaba.

For getting seamless output, these servos run smoothly under a temperature range of -30to+60 degrees.

What’s more! These little servo motors are suitable for many vehicles, including helicopters, airplanes, racing cars, boats, and trucks. They are also a great choice for biped robots and remote control cars.

3. AC Standard Servo Motor

  • Brand: PEKASA
  • Power: 0.05kW
  • Weight: 0.4kg
  • Warranty: 1 year

See at Amazon!

What we Like!
  • Strong and powerful performance.
  • Runs smoothly and silently.
  • Reliable
  • Comes with cooling fans.
Things to Consider!
  • Performance depends on the power supply voltage.


Combining power and performance, this is a general-purpose servo motor for various applications, including CNC machining. Under ambient temperature, it can deliver the torque needed to run a specified machine.

It features a pint-size weight that is just 0.4 kg, yet the built quality is strong to make this servo stand under tough operating conditions.

If you’re the sort of person who goes for branded products, this one’s for you. Not only this has a brand name at its back, but it is also reliable with a one-year warranty.

It is recommended to check its bearings and brake section if the motor starts making an unusual noise.

The good thing about this model is that it has a cooling fan to keep all the components of your servo cool under heavy-duty applications.

You would get the best results by going through its manual. Although this servo motor is corrosion-resistant, you should still need to apply rust prevention oil to the machined surfaces of the shaft.

4. Feetech 12V Serial Control Smart Servo Motor

Best Servo Motor for CNC Machines

  • Brand: Occus
  • Gear type: Steel gear
  • Weight: 180g
  • Operating Voltage: 12V

See at Amazon!

What we Like!
  • Aluminum casing.
  • Heavy-duty construction.
  • Coreless motor.
  • Suitable for vehicles and remote control toys.
Things to Consider!
  • Not for heavy applications.


You would get very little knowledge about the durability and reliability of this servo motor on Amazon and no customer reviews at all to secure your purchase. But we have reviewed this servo motor based on its impressive features and specifications.

This servo motor is efficient and performs well for vehicles and remote control peripheral devices with an intuitive design.

With 2 ball bearings and steel gear, this servo stands for the test of time and performs fairly well under harsh weather conditions.

Unlike a standard servo motor that has magnets, this servo motor is coreless. This being, it gives you more constant and stronger results.

Along with this, it features a 15T horn gear spline that is made up of aluminum. Having a wheelbase and screws, this servo motor costs you about $500. For light applications, its efficiency is exceptional and makes it a reliable product to go for.

5. GOWE Delta 60mm CNC Servo Motor

  • Brand: GOWE
  • Weight: 0.8kg with a brake
  • Product Type: Electrical Communication Motor
  • Driving type: AC

See at Amazon!

What we Like!
  • Efficient.
  • Easy installation.
  • Minimum wiring cost.
  • Good for CNC machining.
Things to Consider!
  • Delicate encoder.


This is a good servo for several applications, including CNC milling machines and CNC lathes. Also, for transportation machines, their efficiency is par excellence.

What makes it superior for CNC applications is its 17-bit high-resolution encoder technique. This is a great feature that allows this motor to rotate at a constant speed throughout an application. What you get in return is- precision machining.

This servo motor is also impressive since its installation is a cinch. Further to this, it starts up quickly and seamlessly.

Every machinist pays a huge amount for maintaining his servo motor. A servo motor also raises your funds when you pay additionally for wiring. But for comfort, this servo motor requires little maintenance and minimum wiring cost.

By all means, this remains worth buying a CNC servo motor for transportation and CNC machines.

6. GOWE Delta CNC Servo Motor AB

  • Brand: GOWE
  • Weight: 0.8kg with a brake
  • Communication interface: Modbus
  • Modulation: Digital
  • Driving type: AC

See at Amazon!

What we Like!
  • Supports various inertia servo motors.
  • Great for machine tools and processing machines.
  • Built-in Position/Speed/torque controls.
  • Latest technology.
  • Good value for the price.
Things to Consider!
  • Comparatively huge and pricier.


With its advanced features and functions, this AB series servo motor is an impeccable choice for many applications. In the CNC industry and machinery, its performance and efficiency match second to none.

Its Modbus communication protocol can connect to PLC and HMI systems to secure an advanced architecture. This results in a more advanced communication control system that is compatible with several applications of various industries.

It also features 8 internal programmable registers for receiving point-to-point control. You can connect different inertia motors ranging from 1000 r/min to 3000 r/min to perform several applications.

Offering various internal control functions, this servo motor is compatible with CNC lathes, sealing, feeding, and high-speed winding machines.

For heavier applications, this servo motor is a great option that will deliver the most precise and accurate output.

Without breaking the bank, this servo motor will get the job done efficiently.

Buying Guide for a Servo Machine

You can’t buy a specific product unless you know your requirements completely. Also, to invest in a quality product, you must know the key features to look for in that product.

And buying a servomotor is nonetheless different from buying any other product.

Therefore, to save your back, we have speculated this buying guide for you. We hope this would help to give you a better understanding of servomotors.

Let’s have a look:

What is a Servo Motor?

A servo motor is an integral part of a closed-loop system that consists of a servo motor, shaft, potentiometer, encoder, amplifier, and drive gear.

It is a device that rotates the output shaft to a specific angle and velocity to obtain high efficiency and great precision.

Classifications of a Servo Motor

A servo motor is classified by current type, commutation, and rotating field. Following are the types of servo motor:

AC servo motor or DC Servo Motors

The speed of a DC servo motor is directly proportional to the constant voltage supply.

While in an AC servo motor, the speed increases when the frequency of applied voltage increases. Likewise, when the applied voltage decreases, the speed decreases too. In industrial-grade applications where repetition and more precision are required, AC servo motors are likely a more considerable choice.

Brushed or brushless Servo Motors

This is the next configuration of servo motors.

Brushed motors are noisy, less efficient, and are used in DC servo motors. On the other hand, brushless servo motors are quieter, expensive, more accurate, and give better precision.

Synchronous or Asynchronous Servo Motors

This is the last classification of servo motors. The rotating field of a servo motor is either synchronous or asynchronous. When a rotator rotates simultaneously as a stator’s rotating magnetic field, the servo motor is synchronous. On the other hand, when the rotating speed of the rotator slows down than the stator’s rotating magnetic field, the servo motor is asynchronous.

Applications of Servo Motor

Servo motor applications are becoming popular for delivering more accurate and great precision in various industries.

Servo motors are used in CNC milling machines, lathes, drilling, and feeding machines.

They are also a part of camera autofocus to correct the position of the lens to capture images more precisely.

They are also used in industrial-grade telescopes. Various RC toys and robotics also use servo motors classification.

Although servo motors are expensive configurations, the positive thing is their superior performance and better precision.

Advantages and Disadvantages of a Servo Motor

Servo motors can cost you a few dollars to some hundred dollars. They are a great investment in a system where higher precision is required.

They come with a high torque ability. At higher speeds, they can deliver a high torque that is more than 2000RPM. Because of this capability, they are gamechanger in a system where high torque and high speed are required under complex load-changing applications.

Servo motors do possess some disadvantages and limitations. If something in a closed-loop servomechanism breaks, the servo motor becomes unpredictable. Likewise, positional servo motors rotate around 180-degrees of motion.

This concludes our buying guide on the servo motor. If you’re eager to build your own motion control project, keep these considerations in your mind.

Final Verdict

Creating something from scratch is overwhelming but is also adventuring. If you’re looking to make your first CNC machining project, grab a product from our reviewed CNC servo motor options.

Also, make sure to check our buying guide to lock in the best option for your desired application.

Keep your fingers crossed and develop your first CNC mechanics by using a high-quality servo motor.

Best of luck!

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You may also love to read these my reviews and the buying guides…

FAQs about Servo Motors

Here are a few questions that people want to know frequently about Servo Motors;

What are the Best CNC Servo Motors?

Here is my list of the Best CNC Servo Motors in 2021;

  • GOWE Delta CNC Servo Motor
  • Digital High Speed  Servo Motor
  • AC Standard Servo Motor
  • Feetech 12V Smart Servo Motor
  • GOWE Delta CNC Servo Motor
  • GOWE Delta CNC Servo Motor AB

Servo or stepper? Which is better?

For low speeds and low acceleration applications, a stepper motor is the best fit. Whereas for high speeds, high acceleration, and more complex applications, you should go for a servo motor.

Why do CNC machines use servo motors?

They are more precise and more accurate to transfer information to a CNC machine. With this, they use a sensor-fixed encoder and create high torque and high acceleration to give the CNC machine the power and speed needed for an application.

For how long a servo motor can last?

The lifespan of bearings determines the lifespan of a servo motor. A servo motor can last up to 20 years or more. But if operated under extreme conditions there are more chances of wear and tear of a servo motor within a year or even less.

Is it safe to power an Arduino with a servo motor?

Yes, you can. But first of all, know the current needs of a servo or its stall torque to run an Ardunio with a servo motor.

Is it possible to control the speed of a servo motor?

You can’t control the speed of a servo motor. A servo motor receives a position signal and runs accordingly.

David Houghton
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