Neodymium Rare Earth Magnet Discs, 0.472″ Diameter, 0.118″ Thick
This is The Best Selling Neodymium Rare Earth Magnet Discs, 0.472″ Diameter, 0.118″ Thick tends to SELL OUT VERY FAST!!
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List Price :$ 4.49
Price: $ 2.93
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Product Features
- Neodymium magnets are also known as Rare Earth Magnets
- Produces the highest pounds of pull per square inch compared to other permanent magnet materials
- High cost per square inch compared to other permanent magnet materials but costs less than Samarium Cobalt.
- Very high resistance to demagnetizing
- Limited to dry environments with operating temperatures below 176 degrees Fahrenheit
Product Description
4.3 pounds of pull perpendicular to a flat, ideal holding surface. This pounds of pull does not apply to shear force. Pounds of pull are increased by using a holding surface with the highest iron content possible. Also the thicker the steel holding surface the higher the pounds of pull. Layers of paint and other finishes decrease the pounds of pull.
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4 of 4 people found the following review helpful:
 Little but strong!, By
I picked these up to mount to my bicycle’s bottom bracket in the hope that it might be able to trip the inductance loop sensors that some traffic lights use- the jury’s still out on whether that particular application works. Before I mounted these to the bike, however, I was using them around the house. These tiny magnets had no trouble whatsoever holding heavy things like a full size calendar to my refrigerator. Very useful for their size and price.
2 of 2 people found the following review helpful:
The real deal!, By
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This review is from: Neodymium Rare Earth Magnet Discs, 0.472″ Diameter, 0.118″ Thick (Misc.)
These magnets are even smaller than I expected (smaller than a US dime) but incredibly strong. One of these magnets can easily hold a 12-month calendar, thick greeting card, or pad of paper on the refrigerator. They really do put other refrigerator magnets to shame. WOW. I plan to order another pack for myself and also several to give as gifts.
2 of 2 people found the following review helpful:
 Great for demonstrations., By
I use these at the local science museum to demonstrate Maxwell’s Motor (you know, that spinning thing with a battery, screw, magnet and wire). The problem we have with stronger, larger rare earth magnets is from collisions with other magnets or metal, they chip their metal coating. Although what remains is still magnetic, it is not conductive so the demonstration doesn’t work. |
Little but strong!,
I picked these up to mount to my bicycle’s bottom bracket in the hope that it might be able to trip the inductance loop sensors that some traffic lights use- the jury’s still out on whether that particular application works. Before I mounted these to the bike, however, I was using them around the house. These tiny magnets had no trouble whatsoever holding heavy things like a full size calendar to my refrigerator. Very useful for their size and price.
Was this review helpful to you?
|The real deal!,
These magnets are even smaller than I expected (smaller than a US dime) but incredibly strong. One of these magnets can easily hold a 12-month calendar, thick greeting card, or pad of paper on the refrigerator. They really do put other refrigerator magnets to shame. WOW. I plan to order another pack for myself and also several to give as gifts.
Was this review helpful to you?
|Great for demonstrations.,
I use these at the local science museum to demonstrate Maxwell’s Motor (you know, that spinning thing with a battery, screw, magnet and wire). The problem we have with stronger, larger rare earth magnets is from collisions with other magnets or metal, they chip their metal coating. Although what remains is still magnetic, it is not conductive so the demonstration doesn’t work.
These magnets are sufficiently small that they don’t collide with sufficient force to chip. Of the six magnets I have, so far only one has a small chip, of no consequence.
Was this review helpful to you?
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