S6004-2RS Ball Bearing Hybrid Ceramic ABEC-5 Stainless Steel Si3N4S6004 2RS Sealed Hybrid Ceramic Ball Bearing ABEC 5 Precision Si3N4 Balls & Stainless Steel 20x42x12mm This S6004 2RS is a premium hybrid ceramic deep groove bearing built for speed and durability. It features high precision ABEC 5 tolerances, stainless steel races, Si3N4 ceramic balls, and a tough nylon cage. Perfect for electric motors, 3D printers, and performance gear that demands quiet, smooth, long lasting rotation. ABEC 5 precision for smooth,
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