LUBRICATED CARTRIDGE FOR HYDRAULIC MINING SHOVEL TRACK

A cartridge assembly for a track chain includes a bushing and a track pin. The bushing has an outer surface and an inner surface, the inner surface defining a passage in the form of a cylindrical bore. The bushing forms a lubrication reservoir adjacent the inner surface and extending towards the outer surface of the bushing. The track pin is disposed within the cylindrical bore, and the bushing is rotatable with respect to the track pin. An outer surface of the track pin is in fluid communication with the lubrication reservoir. The outer surface of the bushing corresponds with an outer diameter of the cartridge assembly. The outer diameter of the cartridge assembly is less than a diameter of supporting bores such that the cartridge assembly is rotatable with respect to inside surfaces of the supporting bores.