Wear ring for Terex BT4792

This component is a wear ring used within the extension cylinder assembly of the Terex BT4792 crane. It serves as a critical interface component that maintains the alignment of internal cylinder parts during operation. By providing a controlled clearance between the piston and the cylinder bore, it prevents direct metal-to-metal contact, which is necessary for the smooth movement of the extension system.

The part number 223989 is engineered to meet the specific dimensional requirements of 6.000 inches outer diameter, 5.750 inches inner diameter, and a thickness of 1.000 inches. It is designed for integration into the hydraulic extension cylinder of the Terex BT4792 model. Proper installation of this ring is necessary to maintain the structural integrity of the cylinder housing and piston rod during the extension and retraction of the crane boom.

In hydraulic cylinders, wear rings function as bearing elements that guide the piston and rod. They manage side-loading forces and prevent the scoring of cylinder walls, which helps maintain the effectiveness of the primary hydraulic seals. By preserving the gap between moving parts, the ring ensures that the hydraulic fluid remains contained and that the cylinder operates with consistent pressure.