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Arc Magnets

Our Neodymium and Ceramic arc magnets are unique in shape and are designed for use within permanent magnet motors and generators due to the configuration of their north and south polarities.

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  • 47mm O.R x 39mm I.R x 130 degrees x 73mm thick Y30BH Ferrite Arc Magnet
  • 37.5 O.R x 33.5 I.R x 25mm x 4mm thick N42 Neodymium Arc Magnet
  • 20mm O.R x 12.5mm I.R x 90 degree x 5mm thick N42 Neodymium Arc Magnet - 5kg Pull

Arc magnets are a unique shape which are designed especially for motors, generators and alternators and are commonly used for both rotors and stators. They are also used in magnetic flywheel assemblies. In motor design a ring of magnets with alternating polarities on the inner radius rotate in close proximity to a number of copper coils. As the copper passes through the magnetic fields an electric current is induced within the copper.

Four or more magnets with an equal number of north and south polarity on the inner radius can be used to create a multi-pole ring. All arc magnets are available with either pole on the inner radius.