This ball bearing supports the engine cooling fan shaft, maintaining correct belt tension and alignment within the drive system. It is a single-row deep-groove bearing with integral seals on both sides, which retain factory lubrication and exclude dust and moisture. A worn bearing produces a rumbling noise from the fan area and can allow the fan to wobble, leading to belt slip or coolant temperature fluctuation. The bearing is manufactured to the same radial clearance and seal geometry as the original assembly, so it seats fully in the housing bore without shimming. Press the bearing onto the shaft using the inner ring only; do not apply force through the outer ring.