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Hydraulic Gear Motor

Hydraulic gear motors are essential component attached to the motor of a hydraulic equipment. All types of hydraulic motors have certain design features common to them. These are

A driving surface area which is subject to difference in pressure.
To achieve a continuous rotation, there is an instrument of timing the transfer of pressure fluid to the pressure surface.
Lastly, there is a mechanical connection between the surface area and an output shaft.

The main purpose of hydraulic motor is to generate force and power to the hydraulic equipment to start or end the mechanism and the hydraulic gear motors are the most widely used motor here.

Purpose of Hydraulic Gear Motors

The main reasons for the use of hydraulic gear motors are as follows:

The ability of the pressure surfaces to bear force.
To check out the leakage characteristics for motor of each type.
Hydraulic motor gears link the pressure surface and the output shaft etc.

Why are Hydraulic Gear Motors Used?

Hydraulic gear motors are used to get the maximum efficiency in terms of flow, pressure, torque output, speed, service life, physical configuration, including volumetric and mechanical efficiencies.

Types of Hydraulic Gear motors

Internal Gear Motor: The inner gear has one less tooth than the outer. The shape of the teeth is such that all teeth of the inner gear are in contact with some portion of the outer gear at all times.
External Gear Motor: External gear motor consists of a pair of matched gears enclosed in one housing. Both gears have the same tooth form and are driven by pressure fluid. One gear is connected to an output shaft.

How Hydraulic Gear Motor Works?

When pressure fluid is introduced into the motor, both gears rotate. As the pair of inner and outer gears continues to rotate, the hydraulic oil is put into force. The oil is transported from the inner outlet to the outer outlet, thereby exerting force on the equipment and the equipment starts working.