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CAT # MAG-147 (2 Reviews) Write a Review

$ 0.60
$0.60 each
100 + $0.40 each
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Product Description
Arc-shaped neodymium magnet, 28mm (longest dimension) x 10mm wide overall x 3mm thick (1.10" x 0.4" x 0.140"). Plated. Some scratches. 18-22K gauss.
WARNING: May cause cancer or reproductive harm.
California Prop. 65
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Customer Reviews (2 Reviews)

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NOT like hard-drive mags: N and S on opposite sides

Reviewer: from SEATTLE, WA USA

Curved "hard-drive magnets" usually have their N and S poles on the same flat side. These don't, they have one pole on each face, so they're much more useful.

Buy ten and stack them to form one large magnet. Useful in simple generator project for science fairs, wind-power demos, etc. Stick them all over your bicycle rim, so they can drive an iron-core solenoid coil.

6 of 7 people found this review helpful. Do you? Yes No  Certified buyer

Polarity of Magnets

Reviewer: from Richardton, ND

I had not noticed an issue with the polarity of these magnets, for my application this is irrelevant. I think that they ARE from hard drives, but packing them in stacks such as they do will have shifted the poles to the faces rather than to the ends. As long as you are not building a hard drive from scratch... : )

1 of 5 people found this review helpful. Do you? Yes No  Certified buyer

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