20x5mm Neodymium Disk Magnet
SKU: 44207-5
The 20mm x 5mm neodymium disc magnet has a pull force over 17 pounds (~8kg) and provides enough resistance to be used in eddy current (Hall effect) brakes.
The 20mm x 5mm neodymium disc magnet has a pull force over 17 pounds (~8kg) and provides enough resistance to be used in eddy current (Hall effect) brakes.
The Mark I Magnaprobe can respond to as little as 0.3 gauss & will detect weaknesses in magnetic shielding. The Mark II Magnaprobe is a fast & convenient way to confirm magnet are positioned with their poles pointing correctly.
| Field Strength (Gauss) & Pull Force in Pounds & Kilograms at 5 Distances Above Magnet | |||||
| SKU: 44207-5Size: 20 × 5mm | |||||
| Distance (mm): | 0 | 0.1 | 1 | 10 | 100 |
|---|---|---|---|---|---|
| Gauss | 2951.6 | 2932.6 | 2738.9 | 824.6 | 3.0 |
| Lb | 17.22 | 17.00 | 14.83 | 1.34 | 0.00 |
| Kg | 7.83 | 7.73 | 6.74 | 0.61 | 0.00 |
Magnet Documentation |
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| Drawing | Compliance | MSDS | ROHS | Graph | |
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| RemanentFlux Density (Br) | 13,000G; 1300mT |
| Coercivity (bHc) | 12.0 Oe; 955 A/m |
| Intrinsic Coercivity (jHc) | 17.0 Oe; 1353 A/m |
| Max.Energy Product (BHMax) | 42 MGO; 334 kJ/m3 |
| Curie Temperature (Tc) | 310oC |
| Working Temperature (Tw) | 80oC |
| Temp.Coefficient (αB)r | -0.12%/Co |
| Dimensions | Tolerances | |||
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Size: |
Inches | mm | Inches | mm |
|---|---|---|---|---|
| 0 to 0.125 | 0 to 3 | +/- 0.006 | +/- 0.15 | |
| 0.126 to 0.625 | 3 to 16 | +/- 0.012 | +/- 0.30 | |
| 0.626 to 0.875 | 16 to 22 | +/- 0.018 | +/- 0.45 | |
| 0.876 and Up | 22 and Up | +/- 2.5% | +/- 2.5% | |
| Inch | Decimal | mm | Rounded |
|---|---|---|---|
| 1/32" | 0.031 | 0.8 | 1 |
| 3/32" | 0.094 | 2.4 | 2.5 |
| 5/32" | 0.156 | 4.0 | 4 |
| 1/16" | 0.063 | 1.6 | 1.5 |
| 3/16" | 0.188 | 4.8 | 5 |
| 2/10" | 0.200 | 5.1 | 5 |
| 1/8" | 0.125 | 3.2 | 3.75 |
| 1/4" | 0.250 | 6.4 | 7.5 |
| 5/16" | 0.313 | 7.9 | 7.5 |
| 3/8" | 0.375 | 9.5 | 10 |
| 13/32" | 0.406 | 10.3 | 10 |
| 1/2" | 0.500 | 12.7 | 12.5 |
| 9/16" | 0.563 | 14.3 | 15 |
| 5/8" | 0.625 | 15.9 | 15 |
| 11/16" | 0.688 | 17.5 | 17.5 |
| 3/4" | 0.750 | 19.1 | 20 |
| 13/16" | 0.813 | 20.6 | 20 |
| 7/8" | 0.875 | 22.2 | 22.5 |
| 15/16" | 0.938 | 23.8 | 25 |
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