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  • Description
  • Technical
  • Downloads
  • Video
These rings are diametrically magnetized, which means they are magnetized perpendicular to the axis of the hole. The poles are located on opposite sides of the circular faces. They can be placed on a shaft to work with sensors or to generate electricity.  They can also be used to fish wires through a finished wall by pulling them with a larger magnet from the outside.

This size is also available axially magnetized in grade N52 as part number RC4C-N52.

Case1 Pull Force, Case 1 vs. distance: Magnet to a Steel Plate.
Case2 Pull Force, Case 2 vs. distance: Between 2 Steel Plates.
Case3 Pull Force, Case 3 vs. distance: Magnet to Magnet.
Case4 Pull Force, Case 4 vs. distance: Magnet to Magnet Repulsion.
BH Curves View B-H curves for this magnet.

SpecSheetClick here to download a PDF Specification Sheet.
DrawingClick here to download a PDF drawing of this product.
CertClick here to download a Certificate of Compliance for this product.
RoHSClick here to download a RoHS Statement of Compliance for this product.
MSDSClick here to download a Material Safety Data Sheet (MSDS) for this product.
STEPClick here to download a .STEP file (3D model).
IGSClick here to download an .IGS file (3D model).

   Download the free Adobe Acrobat Reader

SPECIAL: 20% Off
Discount will be applied during checkout

 Price: $9.81
 Add to cart
Price ea.Qty
$9.81 1
$9.59 2-4
$9.37 5-9
$9.16 10-24
$8.94 25-49
$8.72 50-99
$8.50 100-249
$8.29 250-499
$8.07 500-999
$7.85 1000-2500
For pricing at higher order quantities,
please email us!

10% Off
Thin Block Magnets
3/4" x 1/4"
x 1/16" thick

10% Off
Powerful Stepped Block Magnets
Very strong!
1" x 1"
x 3/8" thick

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K&J Magnetics, Inc.
Your online source for incredibly powerful neodymium magnets