What Is a Cylinder Block Spring?

The cylinder block spring is a small but critical component inside a hydraulic motor or pump. It is typically used to keep the pistons properly seated and secured within the cylinder block.

Function

• Pushes the pistons against the cylinder block

• Ensures pistons stay in position and operate without vibration

• Improves rotational and hydraulic efficiency of the motor

• Prevents irregular movement of the pistons or cylinder block

Importance

If the cylinder block spring is weak or broken:

• Pistons may not remain properly seated

• Hydraulic motor efficiency decreases

• Vibration or noise may occur during operation

• Wear on the pistons and cylinder block accelerates