This is a bonded molded neodymium magnet magnetized by radial inner diameter, strong magnetic inner circle, toroidal, with 6 poles, black epoxy coated surface, 50mm (1.97 inches) outer diameter, 44mm hole, 20mm height, mainly used for transmissions, sensors, automation equipment, permanent magnet DC motors and so on, which can be used to partially replace sintered neodymium-iron-boron magnets and ferrite magnets.
This size is in stock, browse other bonded neodymium magnets: https://www.couragemagnet.com/bonded-neo-magnets/
Main physical property parameters of bonded molded neodymium magnets;
Parameter Name | Unit | Value |
Density | g/cm³ | 4.0-6.5 |
Curie Temperature | ℃ | 300-350 |
Recoil Permeability | μrec | 1.2 |
Temperature Coefficient | %/℃ | -0.17 |
Hardness | Hv | 80-120 |
Resistivity | Ω.cm | 0.026 |
Compressive Strength | kgf/mm² | 3 |
Flexural Strength | kg/mm² | 25 |
Thermal Expansivity | 10-6/℃ | 1-2 |
Other knowledge of molded bonded neodymium magnets;
Is bonded NdFeB a composite material?
Bonded vs Sintered Neodymium Magnets
Magnetic Property Grade Datasheets of Bonded Neodymium Magnets