Magnet knowledge | Mechanical Properties of Neodymium Magnets

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In the application of neodymium magnets, while their excellent magnetic properties are often the focus, their mechanical properties should not be overlooked under varying working conditions and environments. For instance, in motor manufacturing, neodymium magnets must exhibit adequate mechanical strength to withstand stresses during assembly, such as compression and clamping forces. Engineers prioritize hardness and flexural strength to prevent damage.
Furthermore, in high-speed rotating motors, neodymium magnets are subjected to intense centrifugal forces, acceleration, and high-frequency vibrations. Prolonged exposure to these extreme conditions can lead to wear and fracture, impacting motor performance and lifespan. Thus, the mechanical properties of neodymium magnets play a crucial role in ensuring long-term motor stability and durability.
Sintered Neodymium Magnet
Hardness/Hv：400-600
Fracture toughness(MPa.m1/2）：2.2-5.5
Impact toughness(KJ/m2)：27-47
Flexural strength/MPa：150-350