Retaining ring for Demag AC80-1

The retaining ring, identified by part number 412 970 12, serves as a mechanical fastener used to secure various components within the machine assembly. It is designed to fit into machined grooves on shafts or inside housings, effectively limiting axial displacement of parts such as bearings, gears, and pins. By maintaining these components in their intended positions, the ring ensures the stability of the mechanical systems during operation.

This component is specifically intended for use in the Demag AC80-1 crane. It is commonly applied in critical areas including the transmission mechanisms, undercarriage, hydraulic cylinders, and boom pivot points to hold pins and guide rollers securely in place. The part is manufactured by Demag. Proper installation within the designated groove is necessary to maintain the integrity of the assembly and prevent the shifting of adjacent parts during crane operation.

Retaining rings function by exerting radial pressure against the walls of a groove after being expanded or compressed during installation. This creates a physical barrier that prevents components from sliding off their shafts or out of their bores. Regular inspection of these rings is standard practice during maintenance to ensure they remain free from deformation or damage, which supports the consistent operation of the machinery.