Back-up ring for Terex BT4792

The back-up ring, identified by part number 223006, serves as a supporting component within the hydraulic and pneumatic sealing systems of the Terex BT4792 crane. It is engineered to work in conjunction with O-rings and other primary seals to maintain system integrity. By providing mechanical support, the component prevents the extrusion of the primary seal into the clearance gap between sealing surfaces when the system is subjected to high operating pressures.

This part is compatible with the Terex BT4792 model. Proper installation ensures the primary seal retains its shape and functional capacity within hydraulic cylinders and related assemblies. By mitigating the risk of seal deformation, it assists in maintaining the overall efficiency of the hydraulic circuit.

In hydraulic systems, back-up rings are used to protect softer sealing elements from being forced into gaps under pressure. They are typically positioned on the low-pressure side of the seal to provide a rigid barrier, which is necessary for the seal to function correctly in high-pressure applications.