Demag
Elastic washer for Demag AC80-1
This elastic washer is designed for secure fastening applications on the Demag AC80-1 crane. It helps maintain tension in bolted connections to prevent loosening during operation.
Parts diagram
Compatible models
Specifications
- Part number
- 343 186 99
- Brand
- Demag
The elastic washer, part number 343 186 99, serves as a critical component for maintaining the integrity of bolted joints within the Demag AC80-1 crane. By exerting a constant preload force on the assembly, this washer compensates for material relaxation and helps counteract the effects of operational vibrations that can lead to fastener loosening over time. It is installed beneath the head of a bolt or a nut to distribute the clamping load evenly across the connection surface.
This component is specifically engineered for fitment on the Demag AC80-1 model. Proper installation of this washer is important for ensuring that each connection remains secure during the standard operation of the crane. It is a standard element used in both preventive and corrective maintenance procedures to preserve the mechanical stability of various assemblies throughout the machine.
Elastic washers are widely used in heavy machinery to provide a spring-like action that maintains tension in a bolted joint. They are particularly useful in systems subject to cyclic loading or thermal expansion, where they help ensure that the fastener remains tight and the joint maintains its intended clamping force.

