This is an injection molded ferrite ring magnet with small holes, with a single side 8-pole magnetization and only one side having magnetism. We usually call it an 8-pole injection molded magnetic ring, with an outer diameter of 13mm, a small hole of 1.4mm, and a thickness of 3mm. It is mainly used for various motors, sensors, encoders, speed measurement, and induction devices. If you want to obtain a sample, please contact us to provide it for you.
Small injection molded ferrite magnetic ring 13x1.4x3mm physical sample display picture;
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