CENTER PISTON SPRING - A7VO107

The Center Piston Spring for the Bosch Rexroth A7VO107 axial piston pump provides precise preload and return force for the center piston assembly. It ensures stable control of swash plate movement, maintaining optimal pressure balance and response during operation.

Features:

• Specifically designed for Rexroth A7VO107 variable displacement pumps.

• Made from high-strength spring steel for excellent elasticity and fatigue resistance.

• Precision-coiled for uniform compression and consistent force output.

• Heat-treated and shot-peened for long service life under continuous cycling.

• Corrosion-resistant finish to withstand hydraulic oil exposure.

Applications:

Used in the servo control section of A7VO107 pumps commonly found in heavy-duty mobile and industrial hydraulic systems such as excavators, drilling rigs, and marine drives.

Function:

This spring maintains controlled swash plate positioning by balancing the hydraulic pressure applied to the center piston. It helps ensure precise displacement control, smooth response to load variations, and stable pump performance under varying operating pressures.