What Are Hydraulic Motors?

There are a vast range of hydraulic motors available on the market. Motors can be fixed or variable displacement.

The fundamentals of hydraulic components do not have to be complicated. We created these frequent blog posts to try and explain to readers the basics of hydraulics without confusing you with technical jargon. Firstly, to keep it simple, we will start with the most common question we get asked:

What are hydraulic motors?

Hydraulic motors are rotary actuators that convert hydraulic energy into mechanical power. A motor works in conjunction with a hydraulic pump, which is the component within a system that converts mechanical power into hydraulic energy. The hydraulic motor is responsible for providing the force which moves loads.

Simply put, a hydraulic motor is built very similar to a pump. Although, the main difference being that the function of a hydraulic motor is to convert the fluid/energy into power. Which in turn, turns the shaft to move external loads. Subsequently, a hydraulic motor cannot function by itself. So, the amount of fluid delivered by the hydraulic pump controls the speed of a hydraulic motor.

How Does a Hydraulic Motor Work?

Hydraulic motors transform hydraulic energy into mechanical power. The process begins when a hydraulic pump pushes fluid into the motor under pressure, exerting force on the motor’s internal components like pistons or gears. This action creates rotation, producing torque that powers machinery e.g. moving or lifting heavy objects.

Essentially, the motor transforms the energy carried by the fluid into the force needed to perform tasks, making it a critical component in systems where powerful, controlled movement is required. The speed and torque output of the motor can be adjusted by changing the fluid pressure and flow, catering to different industrial and mobile applications.

What are hydraulic motors used for?

Hydraulic motors are used in industrial and mobile applications, or any application requiring rotational force. Some examples include mixers and conveyors as well as excavators, bulldozers and mobile machinery.

Types of hydraulic motors

There is a wide range of hydraulic motors to suit all application types. However, below we will briefly discuss the most common:

Piston Motors – A radial piston motor is an efficient motor which provides high torque at fairly low shaft speeds.

Gear Motors – A gear motor does the same as a piston motor in principle, except its designed to withhold lower pressures.

Variable Motors – A variable motor can vary speeds from throughout its range. Therefore, they can be suited to various mobile applications, whether these are light, medium or heavy duty.

Torque Motors – A torque motor is used in slow speed, high torque applications. Similarly, these can be used in a range of light, medium or heavy-duty applications.

Repairing hydraulic motors

Hydraulic motor repair is one of the most common repairs we carry out in our in-house service and repair facility. Hydraulic motors can require repairs for a number of reasons.  These can include general wear and tear, an issue in the hydraulic system or oil contamination, just to name a few. Luckily for you, our experienced engineers have vast experience in repairing hydraulic components. So you couldn’t be in safer hands. For more information on our hydraulic repair service please do not hesitate to contact us.

In conclusion, here at BSP we offer a range of hydraulic motors from some of the world’s leading hydraulic manufacturers. To discover which hydraulic motor would be most suitable for your application, contact us today on 01924 332491 or click here to send us an enquiry.