This bearing is a sealed, double-row ball bearing of type 6306 2RS C3, used in the inclined feeder and engine sections of self-propelled forage harvesters. It supports rotating shafts and pulleys within the driveline, maintaining alignment under load. A failed bearing produces audible noise, vibration, or shaft wobble, which can lead to belt misalignment or component damage. The original part uses the specified internal clearance and seal configuration to match the housing bore and shaft diameter without shimming. On replacement, ensure the shaft and housing bore are clean and free of burrs, and press the bearing onto the shaft using the inner ring only.