Product Categories
Contact Us

Contact: Ms. liao
Tel: +8621-50123536
Email: Website:

Hydraulic Gear Pump

A hydraulic gear pump uses the meshing of gears to pump fluid by displacement. They are one of the most common types of pumps for hydraulic fluid power applications. Gear pumps are also widely used in chemical installations to pump high viscosity fluids. There are two main variations; external gear pumps which use two external spur gears, and internal gear pumps which use an external and an internal spur gears (internal spur gear teeth face inwards, see below).
Gear pumps are positive displacement (or fixed displacement), meaning they pump a constant amount of fluid for each revolution. Some gear pumps are designed to function as either a motor or a pump.

1. Do not add load to the hydraulic gear pump immediately after starting:
The hydraulic gear pump must be operated for a period of time without load idling (about 10 minutes to 30 minutes). Especially when the temperature is very low, the hydraulic circuit must be cycled normally and then added to the load, and the operating condition is confirmed.
2. Pay attention to the noise of the hydraulic gear pump:
The new hydraulic gear pump has low initial wear and is easily affected by air bubbles and dust. Poor lubrication at high temperatures or over-loading conditions can cause adverse consequences, causing the hydraulic gear pump to have an abnormal effect.
3. Pay attention to observe the mechanical action (for the modified pump):
Improper design of the hydraulic circuit or poor manufacturing of the components is not easy to find in the initial use phase, so special attention should be paid to the operating states that appear under various conditions of use.
4. Pay attention to check the display value of the meter class:
At any time, observe the pressure gauge display value of the hydraulic circuit, the vibration condition and stability of the pressure switch lamp, etc., to find out whether the hydraulic circuit is functioning properly as early as possible.

Chance Hydraulics is the manufacturers and suppliers of hydraulic gear pump. There are a great selection of hydraulic gear pump for sale at our factory. Welcome to contact us.
  • High Pressure Hydraulic Gear Pump

    High Pressure Hydraulic Gear Pump

    1. High-Tech aluminum alloy bushings and dry bearings are used to ensure wearing resistance and withstance extra high speed up to 5000 R.P.M.
    2. The woodruff key used in this pump withstands much higher torque.
    3. A special internal circuit design guarantees that the seal will not be pooped out in case of...
    Read More

  • Aluminum Hydraulic Gear Pump

    Aluminum Hydraulic Gear Pump

    +Our aluminum hydraulic gear pump is well applied in car lift, elevactor at high pressure, compact design, low weight.
    +‚ÄčOptional relief and priority control valves ensure reliability
    +Multiple-section design promotes application flexibility
    +Pumps are available with cast iron flanges and covers...
    Read More

  • Gear Type Hydraulic Pump

    Gear Type Hydraulic Pump

    1. High efficiency: precise and detailed structural design, this series of gear pumps with high volume rate and high mechanical efficiency. 2. Long service life: high performance, high abrasion resistance, bearings in high voltage, high speed occasions...Read More