This bearing assembly supports a rotating shaft within the threshing unit of a combine harvester. It is a sealed, double-row angular contact ball bearing designed to handle both radial and axial loads from the threshing drum or rotor. The integrated seals prevent ingress of chaff, dust, and moisture, which are common in the harvesting environment. A worn bearing produces audible rumble or vibration from the threshing area, and if left unchecked, can lead to shaft misalignment and damage to the housing bore. The manufacturer’s original geometry matches the housing’s snap-ring groove and shaft shoulder dimensions, so no additional shimming or adapter sleeves are required during installation.