B17-114DD Automobile Alternator Bearings P0 B17-114DDWAXC4 gcr15 Deep Groove Ball Bearing B17-114DD is a deep groove ball bearing specifically designed for automobile alternators, featuring a double-seal (DD) design. This design effectively blocks the intrusion of dust, moisture, and other contaminants, ensuring the cleanliness and long-term effectiveness of the internal grease. Its optimized raceway and ball geometry enable low-friction operation, low-noise performance, and