Thrust Washer (lower)

The main function of the thrust washer in an excavator is to bear axial loads.

A thrust washer, also known as a thrust bearing, is a mechanical component designed to withstand axial loads, typically used in conjunction with radial sliding bearings. They come in the form of circular plates or two semicircular plates and are used to support axial forces in machinery such as excavators. The primary function of this washer is to help distribute and absorb axial loads, prevent axial movement, and ensure the stable operation of mechanical components. In excavators, the role of thrust washers is particularly important as they effectively reduce the impact of axial forces, protecting the mechanical structure from damage, and improving the equipment’s lifespan and performance.

Additionally, thrust washers also serve as mechanical seals, preventing leaks between two objects due to pressure, corrosion, and natural thermal expansion and contraction of pipelines. This sealing function is crucial for maintaining the normal operation of the excavator and extending its lifespan.