Washer for Liebherr LTM 1160-2

The washer, identified by part number 421800908, is a DIN 9021 compliant flat washer designed for M8 fasteners. It serves as a critical fastening component within the Liebherr LTM 1160-2 mobile crane, ensuring that the load from a screw or nut is distributed over a larger surface area. This distribution reduces localized pressure on the mounting surface and helps maintain the integrity of bolted joints throughout the machine structure.

This component is compatible with the Liebherr LTM 1160-2 crane. It conforms to the DIN 9021 standard, which specifies a large outer diameter relative to the inner diameter, providing an increased bearing surface. The washer is utilized in various assembly points across the crane, including structural, hydraulic, and electrical systems, where it provides a smooth surface for tightening and compensates for surface irregularities.

Washers of this type function by preventing damage to the base material during the tightening process and maintaining the preload of a bolted joint. By spreading the clamping force, they prevent the fastener from sinking into the material and help secure the connection against the dynamic stresses and vibrations experienced during crane operations.