Upgrade your gear with these 10 hybrid ceramic bearings! Model SMR52C-2OS, made with 440C stainless steel rings and Si3N4 ceramic balls. Precision ABEC-7 (P4) rated for high-speed performance. Orange rubber seals keep dirt out, and they're self-lubricating – no grease needed. Perfect for fishing reels, RC cars, small motors, tools, and appliances. Size: 2x5x2.5mm. Features rust prevention, dry lubrication, and insulation. Great for smooth, quiet, long-lasting operation!