Back-up ring for Terex HC230

The back-up ring with part number 0752 352 13 is a component used in the hydraulic systems of Terex HC230 cranes. Its primary function is to provide mechanical support to primary sealing elements, such as O-rings, preventing them from deforming or extruding into the clearance gap between mating surfaces when the system is under high pressure. This support is necessary to maintain the integrity of the seal and prevent the loss of hydraulic fluid.

This component is specifically compatible with the Terex HC230 model. It is designed to fit within the hydraulic assemblies of this crane, ensuring that seals remain correctly positioned and effective during operation. By providing a rigid backing for softer seal materials, it helps manage the forces exerted on hydraulic cylinders and other pressurized components within the machine.

In hydraulic and pneumatic systems, back-up rings serve as a protective barrier for elastomeric seals. They are typically installed on the low-pressure side of the seal to counteract the effects of pressure differentials that would otherwise force the seal material into the gaps between mechanical parts. Proper installation of these rings is standard practice in heavy machinery maintenance to ensure that seals function within their intended parameters.