Shopping Cart
SuperMagnetMan Neodymium Arc Motor Magnet.  Used as medical magnets, motor magnets, generator magnets, and pump magnets.  These arc motor magnets are strong rare earth neodymium magnets also used as automotive magnets.

3.500" (88.90mm) OD x 3" (76.20mm) ID x 1" (25.40mm) long, Set of 18 pieces, 9 North / 9 South, N40 Rare Earth Neodymium Arc Magnet, Magnetized across the diameter. Nickel plated.

Minimum Order Quantity (MOQ) = 1 set for this part.

Need a different magnet size for your application?  SuperMagnetMan also manufactures custom rare earth neodymium arc magnets to meet your size requirements.  These strong neodymium magnets can be manufactured with the direction of magnetization through the thickness (IR to OR), through the length, or through the width.  SuperMagnetMan can make these magnets in almost any radius or arc degree.   

Arc Magnets are primary used as motor magnets and generator magnets, however their uses are also as pump magnets, sensor magnets, and automotive magnets.  When used as a motor magnet, arc magnets can be arranged is a circular pattern with alternating north and south poles.

Arc motor magnets must work seamlessly with your entire motor or generator, including the laminations, number of poles needed, wire size, and surrounding components.  Choosing the correct magnet will ensure the most efficient operation of your motor or pump, and provide the desired torque, RPM and output you need.

Arc magnets used in pumps (fluid handling) need to achieve the coupling effect desired at the defined air gap.  The fluid being moved by a pump will determine the coupling required.  And arc magnet coatings will be a critical piece to consider in pumps if the pump is moving harsh liquids.     

The technical and engineering sister company of SuperMagnetMan, SM Magnetics, has been assisting customers for many years with their motors, pumps, generators, and sensor designs.  SM Magnetics is capable of making rotors and stators to a customer’s specification, and they can even help with design of the motor.  The have the capacity to produce low to large volumes, and ramp up quickly in most cases.  For assistance from a technical representative at SM Magnetics, click here for their contact info.

Need assistance from SuperMagnetMan and its technical magnet staff with your neodymium cylinder magnet requirement?  Contact us, or use our online custom magnet quote form to start the discussion.

For a list of neodymium magnet materials and their characteristics, visit our Magnet Tables section.  Use care and caution when handling neodymium magnets, as outlined in our Magnet Safety section. 

M5020-N40

Regular price $90.00
Inside Diameter3" (76.20mm)
Length1" (25.40mm)
Max Working Temp80°C
MOQ1
Outside Diameter3.500" (88.90mm)
Plating/CoatingNickel
StrengthN40
Direction of Magnetism Through the diameter

In Stock: 3

Save Up to 10% Off!

Spend $50 and get 5% off!
Code: 5off50
Spend $100 and get 10% off!
Code: 10off100