Back-up ring for Terex TX760B

The back-up ring, part number 6194549M1, functions as a support component for the bucket hydraulic cylinder in the Terex TX760B loader backhoe. It is installed in conjunction with primary rod or piston seals to prevent the extrusion of sealing elements into the clearance gap between metal surfaces when the system is under high hydraulic pressure. By maintaining the structural integrity of the seal, this component helps prevent fluid leakage and ensures the hydraulic system maintains the necessary force for loading and excavation tasks.

This component is specifically engineered for the bucket cylinder assembly on the Terex TX760B. The actual manufacturer for this part is Terex. It is designed to fit precisely within the cylinder housing to provide the required support for the sealing system.

In hydraulic machinery, back-up rings are used alongside elastomeric seals to protect them from damage caused by high pressure differentials. They fill the gap between moving parts, preventing the softer seal material from being forced into the clearance space, which would otherwise lead to premature seal failure and loss of hydraulic efficiency.