This wooden bearing shell is a component of the threshing-unit shaker assembly. It provides a low-friction, sacrificial wear surface for the rotating shaft that drives the shaker mechanism. The set includes two bearing-shell halves, two plates, four screws, and four self-locking nuts, which together secure the shell around the shaft journal. As the wood wears over time, clearance increases, leading to vibration and misalignment in the shaker drive. The original manufacturer machines the shell to match the shaft diameter and housing bore of the parent combine, so the assembly maintains correct radial clearance without additional shimming. On reinstall, ensure the self-locking nuts are torqued to specification and that the two halves are aligned squarely before tightening.