Bushing for Bucyrus 4100XPCAC

The R42821D3 bushing acts as a sliding bearing within the pivot and articulation points of heavy-duty electric mining shovels. It is engineered to accommodate a pin with a 7.50-inch diameter and features a total length of 4.00 inches. By providing a contact surface at critical joints, the bushing manages the movement between connected components during the operation of the machine's boom, dipper, or handle assemblies.

This component is compatible with Bucyrus 4100XPCAC and 7495HR2 models, as well as P&H 4100XPCAC and 7495HR2 units. It is installed in high-load areas where the equipment must withstand significant forces during excavation and material handling tasks. The precise dimensions ensure a proper fit within the specified pivot housings, facilitating controlled movement and supporting the structural integrity of the machine's linkage systems.

Bushings of this type serve as sacrificial elements in mechanical assemblies. They are positioned between moving parts to allow for rotation or oscillation while protecting the primary structural components from direct friction. Proper installation and regular maintenance of these bearings are necessary to maintain alignment and prevent excessive play in the articulating joints of the shovel.