This bearing supports the reel shaft at the header end, maintaining alignment as the reel rotates to lift crop material into the intake auger. It is a double-sealed, non-adjustable unit that requires no in-service lubrication. A failing bearing produces a growling noise during operation and can allow the reel to wobble, leading to uneven crop feeding. The housing bore must be clean and free of burrs before installation; the retaining hardware should be tightened to the specified torque.