This bearing sits inside the differential housing of the host tractor. It supports the differential carrier and allows the gearset to rotate freely while maintaining alignment under load. A worn bearing produces a low rumble that increases with vehicle speed and becomes audible during turns, indicating excessive clearance in the differential assembly. The original manufacturer specifies the race geometry and internal clearance to match the housing bore and shaft dimensions, so no shimming or adapter rings are required during replacement. On installation, clean the housing bore and shaft journal, apply a light coat of gear oil to the rolling elements, and torque the bearing retainer to the service manual specification.