Terex
Backup ring for Terex HC230
This backup ring, specification 261-T2, is designed for the Terex HC230 crane. It provides mechanical support to dynamic seals within the hydraulic or pneumatic systems to prevent extrusion under pressure.
Parts diagram
Compatible models
Specifications
- Part number
- 0762 122 61
- Brand
- Terex
The backup ring 0762 122 61 is a component used in the hydraulic and pneumatic systems of the Terex HC230 crane. It is installed alongside a primary seal, such as an O-ring, to provide support and prevent the seal from deforming or extruding into the clearance gap between mating surfaces under high operating pressures.
This component is manufactured to the 261-T2 specification and is compatible with the Terex HC230 model. It ensures that seals maintain their intended shape and position, which is necessary for the proper function of hydraulic cylinders and other pressurized assemblies found in heavy lifting equipment.
Backup rings are used in fluid power systems to protect softer sealing elements from pressure-induced damage. By filling the extrusion gap, the ring allows the primary seal to operate effectively without being forced into the clearance space, thereby maintaining system integrity and preventing fluid leakage during crane operation.

