Motors are often seen in our daily life, such as motors in electric toys and motors in hair dryers. But because it is a mechanical product, everyone is not very familiar with it. Today we will introduce hydraulic motors to you. If your work involves these products or you just need these products, please read this article carefully. Today we will focus on oms hydraulic motor.


Hydraulic motors, also known as oil motors, are mainly used in injection molding machinery, ships, hoists, construction machinery, construction machinery, coal mining machinery, mining machinery, metallurgical machinery, marine machinery, petrochemical, port machinery, etc.

The high-speed motor gear motor has the advantages of small size, light weight, simple structure, good manufacturability, insensitivity to oil pollution, impact resistance and low inertia. The disadvantages are large torque pulsation, low efficiency, small starting torque (only 60%-70% of the rated torque) and poor low-speed stability.


From the point of view of energy conversion, the hydraulic pump and the hydraulic motor are reversible hydraulic components. Inputting working fluid to any hydraulic pump can make it work as a hydraulic motor; on the contrary, when the main shaft of the hydraulic motor is driven from the outside When the torque is driven to rotate, it can also become a hydraulic pump working condition. Because they have the same basic structural elements - a closed and cyclically variable volume and a corresponding oil distribution mechanism. However, due to the different working conditions of hydraulic motors and hydraulic pumps, their performance requirements are also different, so there are still many differences between hydraulic motors and hydraulic pumps of the same type. First of all, the hydraulic motor should be able to forward and reverse, so its internal structure is required to be symmetrical; the speed range of the hydraulic motor needs to be large enough, especially for its minimum stable speed. Therefore, it usually adopts rolling bearings or hydrostatic sliding bearings; secondly, the hydraulic motor does not need to have self-priming ability because it works under the condition of input pressure oil, but it needs a certain initial sealing to provide the necessary starting torque. Due to these differences, the hydraulic motor and the hydraulic pump are similar in structure, but cannot work reversibly.


In the late 1850s, the original low-speed high-torque hydraulic motor was developed from a stator and rotor part of the oil pump, which consisted of an internal gear ring and a matching gear or rotor. The ring gear is fixedly connected with the housing, and the oil entering from the oil port pushes the rotor to revolve around a center point. This slow-rotating rotor drives the output through a splined shaft to become a OMS motor. After the advent of this original cycloid motor, after several decades of evolution, another concept of the motor also began to form. This motor has rollers mounted in a built-in ring gear. Motors with rollers provide high starting and running torque. The rollers reduce friction and therefore improve efficiency, and the output shaft produces a stable output even at very low speeds. By changing the direction of the input and output flow, the motor is quickly reversed, and an equal amount of torque is generated in both directions. Each series of motors has various displacement options to meet various speed and torque requirements


In the next article, we will introduce the various types and models of hydraulic motors in more detail. If you want to know more about the  OMS motor sales, you can log on to our website 

hydraulic motor

hydraulic motor manufacturers 

oms motor

oms hydraulic motor

oms 100 hydraulic motor

oms 125 hydraulic motor

oms 160 hydraulic motor

oms 200 hydraulic motor

oms 250 hydraulic motor

oms 315 hydraulic motor

oms 400 hydraulic motor

oms 80 hydraulic motor


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