N42 Neodymium Diametrically Magnetised Cylindrical Disc Magnet - 20mm dia x 20mm thick

High-performance, diametrically magnetised Neodymium (N42) cylindrical disc magnet with central 15/64" hole. These diametrically magnetised magnets have their north and south pole on opposite curved sides, cutting the flat surface in half.

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$15.46
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Technical Specification
Product Description
Rating:
(1)

Product Code:	F679
Shape:	Disc
Magnetic Face:	20mm dia
Thickness:	20mm
Grade:	N42
Plating:	Ni-Cu-Ni ( Nickel )
Material:	NdFeB
Performance (Gauss):	6100
Max Temp (degrees C):	80
Fixing:	Araldite/Loctite

20mm x 20mm
+/-0.1mm tolerance
6mm central hole
North-South poles on opposite curved sides
Excellent resistance to demagnetisation
Triple coated

Unusually, diametrically magnetised magnets are not designed to hold the maximum possible weight for the size of the magnet but instead are used to provide rotational movement. A diametrically magnetised magnet is magnetised across its diameter so that the north pole in on one curved side and the south pole is on the opposite curved side. Diametrically magnetised magnets are used on the end of shafts to provide drive.

Showing our 1 review for N42 Neodymium Diametrically Magnetised Cylindrical Disc Magnet - 20mm dia x 20mm thick. Write a review ›

Review Summary - 5 out of 5 based on 1 rating.

December 2, 2013 | Lucy Clarke

Powerful.

I use these magnets on drive shafts, at 6.1 Tesla they are very powerful. Using only 6 watts as input i can achieve 30,000 RPM.

Magnet Expert Ltd