8E-4745: 50mm Outer Diameter Coned Disc Spring

Description: Seals maintain lubrication and keep dirt and other contaminants from entering into the pin and bushing cavity. Attributes: Sealed track has contact between the internal pin and bushing causing wear to begin immediately because of the friction between the two parts. This results in a significant increase of internal wear life of the link assembly. Grease Lubricated Track link assemblies are direct replacements for sealed link assemblies on Cat Hydraulic Excavator models.