15-Pack 6203-2RS Bearings - Sealed Full Ceramic Si3N4 - 17x40x12mm15 Pack 6203 2RS Full Ceramic Ball Bearings SiN 17mm x 40mm x 12mm Double Sealed PTFE Cage This 15 pack of 6203 2RS bearings features full ceramic construction with silicon nitride (SiN) balls and races for ultra smooth, non magnetic, and corrosion resistant operation. Sealed on both sides and equipped with a PTFE cage, theyre ideal for cleanrooms, chemical environments, or high performance skate and machinery use. Type: Full ceramic deep groove ball
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15-Pack 6203-2RS Bearings - Sealed Full Ceramic Si3N4 - 17x40x12mm