КОЛЬЦО Caterpillar 2803114

The Final Drive Piston Backup Ring functions as a support element within the sealing system of the piston assembly. It prevents the primary sealing ring from being forced into gaps under high pressure, maintaining consistent sealing effectiveness. Holding the sealing elements in place allows the piston to operate smoothly without leakage or deformation of seals.Attributes:• Maintains structural integrity under cycles.• Reduces stress concentration on primary seals.• Prevents extrusion of sealing material under pressure.Applications: The Final Drive Piston Backup Ring is fitted in the piston assembly of the final drive, where it supports seals to maintain hydraulic efficiency.