Terex
Back-up ring for Terex HC230
This back-up ring supports dynamic seals within the hydraulic systems of the Terex HC230 crane. It is designed to fit into the seal groove to prevent extrusion of O-rings or piston seals under high pressure.
Parts diagram
Compatible models
Specifications
- Part number
- 0782 145 11
- Brand
- Terex
The back-up ring 0782 145 11 is a component used in the hydraulic sealing systems of the Terex HC230 crane. It provides necessary support to dynamic seals, such as O-rings or piston seals, by occupying the clearance gap between mating metal surfaces. By limiting the space available for the seal material to deform, this component prevents seal extrusion, which can otherwise lead to internal or external hydraulic fluid leaks and system inefficiency.
This component is compatible with the Terex HC230 model. It is designed to seat precisely within the groove adjacent to the primary seal to maintain the integrity of the hydraulic circuit. Proper installation of this ring is necessary to ensure the seal remains in its intended position during operation.
In heavy machinery, back-up rings are used in conjunction with primary seals in cylinders, valves, and pumps. They serve to protect the softer sealing material from the high-pressure loads encountered within hydraulic systems, thereby maintaining the structural containment of the pressurized fluid.