ОПОРНОЕ КОЛЬЦО Caterpillar 4362635

The Hydraulic Boom Cylinder Backup Ring is used to reinforce the primary seal under pressure. It acts as a secondary support element that prevents the main seal from deforming or extruding into clearance gaps when hydraulic pressure rises during lifting or digging operations. The ring works by absorbing excess pressure loads and restricting seal movement, ensuring consistent sealing performance during rod extension and retraction.Attributes:• Suitable for a rod diameter of 165 millimeter.• Contributes to controlled hydraulic response during operation.• Balances radial forces generated during cylinder pressurization.• Distributes hydraulic pressure forces around the seal circumference.Applications: The Hydraulic Boom Cylinder Rod Backup Ring is located inside the boom cylinder rod sealing groove, where it works alongside the primary seal, reinforces the sealing arrangement, and ensures reliable hydraulic pressure containment during boom lifting and lowering operations.