This deep-groove ball bearing supports a rotating shaft within the threshing mechanism. It is a single-row, double-sealed bearing with C3 internal clearance, meaning the radial internal clearance is greater than normal to accommodate thermal expansion and misalignment under load. The bearing sits in the threshing drum or related shaft assembly, maintaining concentric rotation of the components it supports. A failing bearing produces audible noise, vibration, and increased shaft play, which can lead to misalignment of the threshing elements and reduced separation efficiency. The double-lip rubber seals retain grease and exclude contaminants, which is critical in the dusty environment of the threshing unit. As an INA/FAG component, the raceway and ball geometry match the original assembly's load ratings and clearance specifications, so no shimming or housing modification is required during replacement.