Back-up ring for Link-Belt 5800Q

The LBB0122 back-up ring functions as a support component within the hydraulic systems of the Link-Belt 5800Q. It is positioned to prevent the extrusion of dynamic seals, such as O-rings, into the clearance gaps between the piston or rod and the cylinder wall when the system is subjected to elevated operating pressures.

This part is specifically engineered for compatibility with the Link-Belt 5800Q model. It functions by providing a rigid support surface that prevents the primary seal from deforming or being forced into the gap during operation, which helps maintain the integrity of the hydraulic seal assembly.

In general hydraulic applications, back-up rings are used alongside primary sealing elements to ensure the system remains pressurized and leak-free. By filling the extrusion gap, these rings allow the primary seal to perform its intended function without being compromised by the high-pressure environment found in heavy machinery hydraulic cylinders.