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Steel Balls 3/8" dia (9.53mm) 10pcs/pack - Not Magnet!
Chrome Steel Active Magnetic Bearing, For Machinery at Rs 180/piece in Chennai
Magnetic Ball/Ball Magnet Diameter 40.0 mm Chrome N40 (magnets4you) – Holds 23 kg, Neodymium NdFeb Super Magnet Permanent Magnet, Extreme Adhesive Force : Amazon.de: Business, Industry & Science
Bearing Price Needle Bearing Magnetic Ball P0 (ABEC-1) Deep Groove Ball Bearing 6201 2RS with Dimension 12X32X10 mm - China NSK Bearing Price, Magnetic Ball | Made-in-China.com
Ceramic bearings: winning solution for magnetic fields