This bearing with housing supports the rotating shaft of the gathering auger or feed drum on the corn header. It mounts at the end of the shaft, taking radial and axial loads from the crop intake. A worn bearing produces play in the shaft, causing misalignment of the gathering chains and uneven crop feeding. The housing is machined to match the original mounting bracket, so the bolt pattern aligns without shimming. On reinstallation, clean the mounting face and tighten the fasteners to the specified torque.