This ball bearing supports a rotating shaft within the drive system of a self-propelled forage harvester. It is a deep-groove design with two rubber seals (2RS) that retain grease and exclude contaminants from the rolling elements. A worn or contaminated bearing produces audible rumble and radial play, which leads to shaft misalignment and accelerated wear on the adjacent gear or pulley. The manufacturer machines the races and selects the internal clearance to match the original assembly's running tolerances, so no shimming or housing modification is needed during replacement. On installation, press the bearing onto the shaft using the inner ring only and ensure the snap ring or housing cap is seated fully.