This rare earth neodymium ring magnet is slight more than 1/4" wide & less than 1/4" thick. You can mount pairs of these on a plastic straw to do simple demonstrations of magnetic levitation.
Click on the Specifications tab below to see holding force values for this ring magnet.
We have sold NdFeB magnets since 1996 and N42 grade since 2003, the best value for strength & temperature vs cost. Don't be fooled by claims of higher strength, N52, at lower cost.
Read the complete Google Customer Review for: "...(Indigo) N42 Neodymium magnets...the real deal…bought magnets on Amazon advertised as N52… another cheap Chinese fake"
We also provide complete Documentation including MSDS & ROHS; see below.
We also offer 3 sizes of 7.5mm diameter neodymium disc magnets.
SKU: 44601-5; Size: OD7.5 x ID2.5 x 5 | |||||
Pull Force in Pounds & Kilograms at different distances (mm) above Magnet | |||||
Distance (mm): | 0 | 0.1 | 1 | 10 | |
---|---|---|---|---|---|
Pounds | 3.71 | 2.9 | 1.08 | 0 | |
Kilogram | 1.69 | 1.32 | 0.49 | 0 |
Click on N42 Magnet Specifications for a table that lists general characteristics such as coercivity & remanence.
Click on N42 Magnet Tolerances for a table that lists the range of variation in thickness, diameter, etc.
Click on American vs Metric to see a table with conversions & as well as rounded mm equivalents closest to inch sizes.
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