Back-up ring for Terex TX760B

The back-up ring, part number 6194627M1, serves as a support component within the hydraulic system of the Terex TX760B backhoe loader. It is specifically utilized within the sideshift dipper cylinder assembly, which is manufactured by Wipro. This component is engineered to work in conjunction with primary seals, such as O-rings, to maintain the integrity of the hydraulic seal assembly.

In hydraulic applications, this ring prevents the primary seal from extruding or deforming into the clearance gap between mating surfaces when subjected to high fluid pressures. By providing this mechanical support, the ring ensures that the primary seal maintains its intended shape and sealing capacity within the cylinder. This is critical for the consistent operation of the dipper cylinder and the overall performance of the machine's hydraulic functions.

Back-up rings are used in hydraulic cylinders to protect softer sealing elements from pressure-induced damage. By filling the extrusion gap, they allow the primary seal to operate effectively without being forced out of its groove, which helps prevent fluid leakage and maintains the necessary pressure for heavy-duty hydraulic tasks.