Neodymium disc magnets
Rare Earth Disc Magnets, also called disc neodymium magnets, are the perfect marriage of small size and maximum power
or strength. Bearheart magnet provides a large variety of Neodymium disc magnets in a variety of sizes and with several
coatings such as Nickel, zinc or Gold for protection against corrosion.
Features include
Neodymium magnets are the most powerful commercially produced magnets.
Neo magnets are hard and brittle and may chip or break if dropped.
Neodymium disc magnets are magnetized through the thickness.
Uncoated NdFeB magnets may corrode in humid conditions.
Operating temperatures vary among material grades.
For a comparison of neodymium material grades, please see our chart of material properties.
Neodymium Magnet Applications
Neodymium magnets have replaced Alnico and ferrite magnets in many applications where strong permanent magnets are required, because their greater strength allows the use of smaller, lighter magnets. These applications include:
-
package closures
-
displays and signs
-
head actuators for computer hard disks
-
magnetic resonance imaging (MRI)
-
magnetic guitar pickups
-
loudspeakers and headphones
-
magnetic bearings and couplings
-
permanent magnet motors
-
cordless tools
-
servo motors
-
lifting and compressor motors
-
synchronous motors
-
spindle and stepper motors
-
electrical power steering
-
drive motors for hybrid and electric vehicles actuators
