DC Motor Tachometer Ring, DC Motor Speed Sensor Ring, DC Geared Motor Magnetic Ring, DC Reduction Motor Magnetic Ring, Motor Speed Sensing Ring, Motor Tachometer Ring, Motor Induction Ring, Motor Sensing Magnetic Ring
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Description:
Our 21mm outer diameter magnetic rings, crafted from premium injection molded ferrite and neodymium iron boron materials, offer reliable and customizable solutions for a wide range of motor applications, including DC motor speed sensing, DC gear motor, and general motor speed sensing and induction. With over 500 different sizes available, we can provide a wide range of options to meet your unique needs. Our products deliver superior magnetic performance, dimensional accuracy, and excellent temperature stability, making them ideal for applications requiring high precision and reliability.
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 |
|---|---|---|---|---|---|---|
| 21 | 12 | 5 | 4P | Injection molded neodymium magnets | 90-10mT | Radial, Rotary |
| 21 | 18.5 | 6 | 36P | Injection molded ferrite magnets | 95-110mT | Radial, Rotary |
| 21.1 | 7 | 6 | 4P | Injection molded ferrite magnets | 80-87mT | Radial, Rotary |
| 21.1 | 8 | 6 | 4P | Injection molded ferrite magnets | 80-87mT | Radial, Rotary |
| 21.4 | 3.15 | 6 | 2P | Ferrite magnets | 155-165mT | Radial, Rotary |
| 21.4 | 4.96 | 6 | 2P | Ferrite magnets | 155-165mT | Radial, Rotary |
| 21.8 | 8 | 6.7 | 16P | Injection molded ferrite magnets | 80-87mT | Radial, Rotary |
| 21.8 | 18.5 | 4 | 24P | Injection molded ferrite magnets | 80-87mT | 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.
FAQs:
What is the difference between a ferrite encoder disk and a rubber magnetic encoder disk?
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Currently, the high-temperature resistant magnetic rings that manufacturers can produce are made of ferrite and [...]
Learn More...How to choose the encoder magnetic ring that suits you best？
Please contact the website sales staff by email. We will select the most suitable magnetic [...]
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Usually the thickness of the magnetic ring is more than 10mm and it is used [...]
Learn More...Do CCmagnetics magnetic rings meet ASTM E595 outgassing requirements?
In fact, yes. CCmagnetics magnetic rings are quite simple and safe in their construction, consisting [...]
Learn More...What are the advantages and disadvantages of ferrite encoder magnetic rings?
Ferrite Magnets Strengths Easy to magnetize Resistant to corrosion and don’t require extra coatings Resistant to [...]
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Ring magnetic encoder systems can be used in vacuum environments where outgassing does not occur. [...]
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What material is the ring magnet used in the magnetic encoder?
What are magnegic encoder? A particular kind of rotary encoder known as a magnetic encoder [...]
Learn More...What material should be chosen for the encoder magnetic ring used by the robot?
Injection-molded rubber magnets are preferred because the added rubber has toughness and is more resistant [...]
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jcrews3 –
Customer service was fantastic, delivery was super quick and product was perfect. Very happy customer and will definitely order again through ccmagnetics.