Back-up ring for Terex TX760B

The back-up ring, part number 6195217M1, is a component used within the 7-in-1 bucket cylinder assembly of the Terex TX760B backhoe loader. This ring provides structural support to primary hydraulic seals, such as o-rings or piston seals, by filling the extrusion gap between mating metal surfaces. By occupying this space on the low-pressure side of the seal, the back-up ring prevents the seal material from deforming or extruding into the clearance gap when the system is subjected to high hydraulic pressures.

This component is specifically configured for the bucket cylinder system of the Terex TX760B. Proper installation of this ring ensures that the primary sealing elements remain correctly positioned and intact during operation. Maintaining the integrity of the seal assembly is necessary to prevent fluid leakage and to preserve the hydraulic pressure required for the bucket to function with the intended force and precision.

In heavy machinery hydraulic systems, back-up rings serve as a support mechanism for elastomeric seals. When a system operates under high pressure, the clearance between moving parts can allow a softer seal to be forced out of its groove. The back-up ring acts as a rigid barrier that contains the seal, allowing it to maintain an effective barrier against hydraulic fluid loss.