Can a geroler motor be used in a servo system?

Jan 20, 2026|

Can a geroler motor be used in a servo system? That's a question I've been asked quite a few times lately. As a geroler motor supplier, I'm here to share my thoughts and insights on this topic.

First off, let's quickly go over what a geroler motor is. A geroler motor is a type of hydraulic motor that uses a gerotor gear set. The gerotor consists of an inner gear and an outer gear. The inner gear has one less tooth than the outer gear, and this difference in tooth count creates the chambers that move the fluid and generate torque. Geroler motors are known for their high torque at low speeds, compact size, and relatively simple design. They're commonly used in a wide range of applications, from construction equipment to agricultural machinery.

Now, let's talk about servo systems. A servo system is a control system that uses feedback to control the position, velocity, or acceleration of a mechanism. Servo systems are typically used in applications where precise control is required, like robotics, CNC machines, and automated manufacturing lines. They usually consist of a servo motor, a controller, and a feedback device, such as an encoder.

So, can a geroler motor be used in a servo system? The short answer is yes, but there are some things to consider.

One of the main advantages of using a geroler motor in a servo system is its high torque output at low speeds. In many servo applications, you need to be able to generate a lot of torque to move heavy loads or perform precise positioning. Geroler motors can handle this quite well. For example, in an industrial robotic arm that needs to lift and position heavy objects, a geroler motor can provide the necessary torque to get the job done.

Another benefit is the compact size of geroler motors. In servo systems, especially those used in tight spaces like small robots or automated machinery, space is often at a premium. Geroler motors can fit into these tight spaces more easily compared to some other types of motors.

OMP 160 / OMH 160 / BMH 160 Hydraulic Motor factoryHydraulic Motor With Brake BMR OMR

However, there are also some challenges when using a geroler motor in a servo system. One of the biggest issues is the relatively low speed range. Geroler motors are designed to operate at low to medium speeds. If your servo system requires high - speed operation, a geroler motor may not be the best choice. For instance, in a high - speed CNC milling machine where the spindle needs to rotate at thousands of RPM, a geroler motor probably won't be able to meet the speed requirements.

Another challenge is the control accuracy. Servo systems rely on precise control of the motor's position, speed, and torque. While geroler motors can provide good torque, achieving the same level of control accuracy as some dedicated servo motors can be more difficult. The internal design of geroler motors can introduce some variability in performance, which may require more sophisticated control algorithms to compensate for.

Let's take a look at some of the specific models that could potentially be used in a servo system. For example, the OMP 160 / OMH 160 / BMH 160 Hydraulic Motor is a popular geroler motor. It offers a good balance of torque and compactness, making it suitable for some servo applications where the speed requirements are not too high.

The Danfoss OMP 315 Hydraulic Motor is another option. With its higher torque capacity, it could be used in servo systems that need to handle heavier loads. And if your servo system requires a motor with a brake, the Hydraulic Motor with Brake BMR OMR might be a good choice. The brake can provide additional control and safety in applications where precise stopping is necessary.

When considering using a geroler motor in a servo system, it's important to work closely with a supplier who knows the product well. We, as geroler motor suppliers, have the expertise to help you select the right motor for your specific application. We can also provide advice on how to integrate the motor into your servo system, including choosing the right control system and feedback device.

If you're interested in using a geroler motor in your servo system, or if you just want to learn more about our products, don't hesitate to reach out. We're here to answer any questions you may have and help you make the best decision for your project. Whether you're in the manufacturing, robotics, or any other industry that uses servo systems, we can work with you to find the perfect geroler motor solution.

Contact us today to start discussing your requirements and see how our geroler motors can enhance the performance of your servo system.

References

  • Hydraulic Motor Handbook. Various authors. Covers general principles of hydraulic motors, including geroler motors.
  • Servo System Design Guidelines. Industry - specific publications. Focus on the design and requirements of servo systems.
Send Inquiry