The product is a ring-shaped magnet comprising 128 magnetic poles (64 pole pairs), with an outer diameter of approximately 114.5 mm. It is magnetised radially from the outside and manufactured using an extrusion moulding process. When the magnetic ring rotates with the wheel, drive shaft or motor shaft, Hall sensors or magnetoresistive sensors can accurately detect changes in the magnetic poles, thereby enabling high-speed, high-precision speed measurement.
128 multi-pole radial ring magnets, with only the outer magnetic poles visible

Related 128-pole magnet products;
128 poles and 126-poles multipole magnetic encoder ring magnets
China Neodymium And Ferrite Magnets Manufacturer & Supplier




