Spring washer for Demag HC1020

The spring washer, part number 34386699, serves as a tensioning component within bolted assemblies on the Demag HC1020 crane. By providing a continuous elastic force, it compensates for potential loosening caused by vibration, thermal expansion, or material settlement, ensuring that the connection maintains its required preload. This component is used in various critical fastening points throughout the crane, including the chassis, superstructures, and drivetrain supports, where secure attachment is necessary for operational integrity.

This specific component is compatible with the Demag HC1020 crawler crane. It functions as a mechanical locking element that exerts axial pressure on the bolt and nut assembly. In heavy machinery, spring washers are utilized to maintain the tension of fasteners under dynamic loads, preventing the spontaneous rotation of nuts or bolts that can occur during standard operation. By ensuring that the fastener remains tight, the washer helps maintain the alignment and structural stability of the connected machine components.