Brushless motor speed sensing ring, Brushless motor tachometer ring, Idle speed valve motor rotor magnet, Brushless fan rotor magnet, N520 grade motor speed sensing ring, N520 grade motor tachometer ring
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Description:
Optimize Your Motor Performance with Our 20mm Radial Ring Magnets
Experience the perfect blend of cost-effectiveness and performance with our 20mm outer diameter radial ring magnets. Engineered for precision and efficiency, these magnets are ideal for brushless motor speed sensing, idle valve motor rotors, and brushless fan rotors. Crafted from high-quality injection molded ferrite, bonded NdFeB, and sintered ferrite materials, they deliver exceptional magnetic properties, dimensional accuracy, and durability. Our comprehensive range of sizes and grades ensures a perfect fit for your specific application.
Specification:
Magnetization method
Axial, Rotary
Radial, Rotary
Inter, Radial, Rotary
| O.D (mm) |
I.D (mm) |
Thick (mm) |
Pole Qty | Material | Surface magnetic field |
Magnetization method |
|---|---|---|---|---|---|---|
| 20 | 14 | 2 | 16P | Injection molded ferrite magnets | 140-150mT | Radial, Rotary |
| 20 | 10.5 | 35 | 4P | Injection molded ferrite magnets | 160-170mT | Radial, Rotary |
| 20 | 12 | 4 | 4P | Injection molded ferrite magnets | 960-10mT | Radial, Rotary |
| 20 | 12 | 4 | 8P | Injection molded ferrite magnets | 960-10mT | Radial, Rotary |
| 20 | 14 | 7 | 24P | Ferrite magnets | 145-150mT | Radial, Rotary |
| 20.4 | 5 | 34 | 8P | Ferrite magnets | 155-165mT | Radial, Rotary |
Millimeters to inches conversion table
The fraction inches are rounded to 1/64 resolution.
| Millimeters(mm) | Inches(") (decimal) |
Inches(") (fraction) |
|---|---|---|
| 0.01mm | 0.0004″ | 0″ |
| 0.1 mm | 0.0039 ″ | 0 ″ |
| 1 mm | 0.0394 ″ | 3/64 ″ |
| 2 mm | 0.0787 ″ | 5/64 ″ |
| 3 mm | 0.1181 ″ | 1/8 ″ |
| 4 mm | 0.1575 ″ | 5/32 ″ |
| 5 mm | 0.1969 ″ | 13/64 ″ |
| 6 mm | 0.2362 ″ | 15/64 ″ |
| 7 mm | 0.2756 ″ | 9/32 ″ |
| 8 mm | 0.3150 ″ | 5/16 ″ |
| 9 mm | 0.3543 ″ | 23/64 ″ |
| 10 mm | 0.3937 ″ | 25/64 ″ |
| 20 mm | 0.7874 ″ | 25/32 ″ |
| 30 mm | 1.1811 ″ | 1 3/16 ″ |
| 40 mm | 1.5748 ″ | 1 37/64 ″ |
| 50 mm | 1.9685 ″ | 1 31/32 ″ |
| 60 mm | 2.3622 ″ | 2 23/64 ″ |
| 70 mm | 2.7559 ″ | 2 3/4 ″ |
| 80 mm | 3.1496 ″ | 3 5/32 ″ |
| 90 mm | 3.5433 ″ | 3 35/64 ″ |
| 100 mm | 3.9370 ″ | 3 15/16 ″ |
Note:If you require sensor recommendations, please contact our sales representatives and we will provide you with suggestions for pairing them.
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