Guides

How to Reduce Radial Force Imbalance in Gear Pumps

2026-01-05

How to Reduce Radial Force Imbalance in Gear Pumps

1.Optimize Port Plate & Housing Design

Well-designed inlet and outlet ports help redistribute pressure more evenly around the gear circumference.

Optimized port geometry reduces pressure gradients and lowers net radial force.

2.Use Pressure-Balanced or Compensated Designs

Modern gear pumps adopt:

Axial pressure compensation

Radial force balancing grooves

Floating bushings

These features automatically adjust internal clearances and reduce unbalanced loads under pressure.

3. Adopt Symmetrical Pump Structures

Using dual-outlet, double-gear, or mirrored flow paths helps balance hydraulic forces acting on the gear shafts.

4.Select Proper Operating Pressure

Always operate the pump within its rated pressure range.

Excessive system pressure significantly increases radial force imbalance and accelerates mechanical failure.

5.Improve Bearing & Shaft Support

High-quality bearings, optimized shaft support, and correct alignment help absorb residual radial loads and improve durability.

6.Maintain Proper Oil Quality & Temperature


Correct oil viscosity ensures stable lubrication, reducing friction and secondary stresses caused by radial force deviation.

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