Demag
Slewing ring for Demag AC80-1
This slewing ring is a structural component designed for the Demag AC80-1 crane. It enables the rotation of the upper structure relative to the carrier chassis.
Parts diagram
Compatible models
Specifications
- Part number
- 517 780 40
- Brand
- Demag
The slewing ring, part number 517 780 40, serves as the critical mechanical interface between the carrier chassis and the rotating superstructure of the Demag AC80-1 crane. This large-diameter bearing facilitates the rotational movement of the crane upper, including the cabin, engine, and boom assembly, while maintaining structural integrity between the two main sections of the machine. It is engineered to manage the complex forces exerted during heavy lifting and slewing operations.
This component is specifically configured for the Demag AC80-1 mobile crane. It is designed to accommodate the axial loads, radial forces, and tilting moments encountered during standard crane operation. The slewing ring ensures that the superstructure rotates smoothly and precisely, which is necessary for accurate load placement and overall crane control.
In heavy machinery, a slewing ring acts as the primary pivot point, allowing the upper assembly to turn 360 degrees. By distributing the weight of the superstructure across its rolling elements, the bearing allows for rotation even under significant load. Proper maintenance and inspection of this assembly are required to ensure the stability and operational safety of the crane during all lifting tasks.

