This sealed deep-groove ball bearing supports a rotating shaft within the cleaning-system fan or shaker assembly of a grain harvester. It is a 6016-size bearing with integral rubber seals on both sides, which retain factory-packed grease and exclude dust and chaff from the rolling elements. The bearing is pressed into its housing and onto the shaft; the seals prevent contamination ingress that would otherwise accelerate raceway wear and cause vibration or noise in the cleaning system. A worn bearing produces audible rumble and increased shaft play, leading to misalignment of the driven fan or sieve. Using the original-specification bearing preserves the factory clearance and seal geometry, so no shimming or housing modification is required during replacement. On installation, ensure the shaft journal is clean and free of burrs, and press the bearing onto the shaft using the inner ring only to avoid brinelling the raceways.