Neodymium arc-shaped motor magnets usually need to withstand temperature above 100 degrees Celsius. Most grades such as H, SH, etc. are used. If you have neodymium-iron-boron arc-shaped magnets and need quotation and proofing, please contact the manufacturer of Carrich magnets, which can provide you with high-temperature arcs. Motor magnets, large-size arc magnets, perforated arc neodymium magnets, etc. We look forward to your inquiry....