Backup ring G65-T3 for Terex HC230

The backup ring is a component designed to provide structural support to O-rings and piston seals within the hydraulic and pneumatic assemblies of the Terex HC230 crane. By being installed adjacent to the primary seal, it prevents the seal material from extruding or deforming when the system is subjected to high pressure. This support maintains the geometric integrity of the seal, which is necessary for preventing fluid bypass and maintaining system pressure.

This specific component is designated as G65-T3 and is compatible with the Terex HC230. It is intended for use in applications where hydraulic pressure levels require additional reinforcement for standard sealing elements. Proper installation of this ring is required to ensure the correct function of cylinders and valves within the machine.

In general engineering, backup rings are used in hydraulic systems to bridge the gap between mating parts, such as a piston and a cylinder bore. By filling this clearance, the backup ring stops the softer sealing material from being forced into the gap under pressure, which would otherwise lead to premature seal failure and internal leakage.