https://www.dgcourage.com/chanpin/multipole-magnets/1117.html
Low cost radial 6 poles ferrite rotor magnet rings for motor rotor - Multipole Magnets - Courage...
The sample is a high-performance ferrite rotor magnet with a radial 3-pair pole configuration (6 poles), measuring 20mm in outer diameter, center bore diameter...
motor multipole magnetslow costradial