Product Description
The 20mm N52 Neodymium Sphere Magnets – Pair (SKU MAGNET-BALL-20mm) is two spherical magnets, each 20mm (0.78") across, made from neodymium, a rare earth material.
What "N52" tells you
The number after the N is the strength grade. Among neodymium magnets, a higher number means a stronger pull, and 52 is at the top end of what is commonly sold. Two spheres this size will grip each other hard.
Where they fit
The listed uses are crafts, science projects and industrial applications. They are plain magnets: no power, no cabling, no settings. If you found this page while planning a CCTV job, bear in mind that this is a general-purpose magnet product rather than camera equipment, so decide whether a loose ball suits what you have in mind.
Handling before you buy
- Quantity: 2 spheres in the set.
- Keep clear of: pacemakers, bank cards and magnetic storage. That includes the hard drive in a CCTV recorder, which strong magnets can corrupt.
- Let them meet gently. Neodymium is brittle, so a hard impact can chip it, and skin caught between two spheres will get pinched.
- Children: these are not toys. Store them out of reach.
Specifications
- Product Type
- MAGNET BALL
- Diameter
- 20mm
- Magnet Material
- Neodymium
Frequently Asked Questions
How many magnets are in the set?
The set contains 2 spheres, each 20mm (0.78") in diameter.
What does N52 mean?
N52 is the strength grade of the neodymium. A higher number after the N means a stronger magnet, and 52 is at the high end of commonly sold grades.
What are these magnets suited to?
The listed uses are crafts, science projects and industrial applications.
Can I keep them near a CCTV recorder?
It is best not to. Strong magnets can damage magnetic storage such as hard drives, so store the spheres well away from a recorder.
