Including several series of oilgear pumps, based on mass production of consistently high quality, long life, high load plain bearings, consistent drive shafts, within each application machine, different displacements can be achieved through different gear widths . Pumps are available in Standard, High Performance, Quiet and Quiet PLUS versions. Different flanges, shafts, valve arrangements and multiple pump combinations provide further configuration variants.

External gear pump / hydraulic oilgear pump structure

External gear pump refers to a gear pump composed of external gears. It is mainly composed of driving gear, driven gear, pump body, pump cover and safety valve. The sealed space formed by the pump body, the pump cover and the gear is the working chamber of the gear pump.

The axles of the two gears are respectively installed in the bearing holes on the two pump covers, and the driving gear shaft extends out of the pump body and is driven to rotate by the motor. The external gear pump has the advantages of simple structure, light weight, low cost, reliable operation and wide application range.

Working principle of external gear pump / gear lube pump

Hydraulic gear lube pumps rely on the principle of sealing volume change to work.

1) The housing, front and rear covers and the tooth valleys of the gears form many sealed working chambers;

2) When the gear rotates as shown in the figure, as the gear is disengaged, an oil suction chamber is formed on the right side, and as the gear meshes, an oil pressure chamber is formed on the left side;

3) The contact line of the tooth surface at the meshing point separates the gear into high and low pressure cavities, which play the role of oil distribution.

External gear pump supplier - Lexmua

Lexmua is a professional gear pump manufacturer, adhering to the attitude of "creating value in the professional field, being honest and trustworthy, and joining hands with the future", constantly improving product quality and manufacturing capacity, and carrying out various activities in order to satisfy and move customers.

Lexmua's main products include internal gear pumps and external gear pumps. External gear pumps include Rexroth, Shimudzu, Hydromax and other gear pumps.