This 6305 RS C3 ball bearing supports the rotating shaft in the threshing mechanism drive of a self-propelled forage harvester. It is a sealed, single-row deep-groove bearing with a C3 internal clearance, which allows it to accommodate the thermal expansion and load variations present in the driveline. The rubber seals on both sides retain the factory grease and exclude contaminants from the bearing raceway. A worn or seized bearing produces a characteristic growling noise from the threshing area and can lead to shaft misalignment or drive-train damage. As an original component, the bearing is manufactured to the same internal geometry and seal fit as the assembly it replaces, so no shimming or housing modification is needed during installation.