Hydraulic gear pumps have the following advantages:

Simple structure: It is composed of two main components such as gears, pump body, front and rear end covers, etc., without complex distribution mechanism, the manufacturing process is relatively simple, the cost is low, and it is convenient for repair and maintenance.
Reliable work: The gears and shafts of the gear pump usually adopt an integral structure, the meshing accuracy of the gear is high, it can bear a large load, the working stability is good, and it can also operate reliably in a harsh working environment.
Strong self-priming ability: At start-up, the gear pump can quickly suck the oil out of the oil tank and discharge it, even when the oil level is low or the suction line is long, it can complete the self-priming process well, without the need for additional auxiliary self-priming devices.
Insensitive to oil pollution: The working parts of the gear pump are relatively simple, and the impurities in the oil have little influence on it, which can adapt to the harsh oil environment, and is not easy to cause failure due to oil pollution, and has a long service life.
Wide speed range: It can work in a wide range of speeds, and can maintain good performance from low speed to high speed, which can meet the requirements of flow and pressure in different working occasions.
High pressure: Through the reasonable design of the gear parameters and the structure of the pump body, the gear pump can produce a higher working pressure, generally up to 10MPa - 20MPa, or even higher, which is suitable for some hydraulic systems with high pressure requirements.
Uniform flow: During the meshing process of the gear of the gear pump, the volume between the teeth changes more uniformly, so the output flow is relatively stable and the pulsation is small, which can provide a stable power source for the hydraulic system.
Small size and light weight: Under the same flow and pressure conditions, the gear pump is relatively small in size and weight, which is easy to install and arrange in various equipment, especially suitable for occasions where space is limited.