This is a 15mm OD, 8mm hole, 5mm height multi-pole radial magnetic ring, sintered ferrite material, Y10 grade performance, we have 12-pole and 16-pole samples respectively for DC brushless motor sensors, welcome to inquire about price, samples.
6 pairs of polar radial ferrite rings 15x8x5mm measured data for each dimension;
15x8x5mm multipolar ferrite ring physical sample picture
We have a lot of similar material close to the size, such as radial 12 pole (6N6S) 15x10x3mm, support open mold customization.