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From the initial vehicle speed sensor to intelligent driving, the application of a magnetic sensor ring gains popularity. At present, rubber magnet is used as raw materials for some magnetic sensors, but the mechanical properties of rubber make it unsuitable as an exposed component (it will be deformed easily by the impact from stone, and the performance will be affected in high and low temperature). Compared with injection magnets, the magnetic properties of rubber magnets are lower ((BH) max≤1.4MGOe), which can’t meet long-range sensing needs. Bonded magnetic compounds like Ferrite with PA6 or PA12 binder can meet these requirements.
The injection sensor ring that made by insert molding with the metal ring has advantages of strength, toughness, and anti-collision, which enables the magnetic ring to be directly installed on the wheel hub. In addition, the surface magnetic field strength of the injection magnet is higher than the magnetic rubber, which enlarges the space between the induction probe and the magnetic ring.
Automotive ABS sensing ring
| OD(mm) |
76.25 |
| ID(mm) |
67.01 |
| Height(mm) |
8.02 |
| Surface gauss（mT） |
69.9 |
We value the expertise and commitment of our employees, as a customer you can discuss advanced applications and technical solutions with our sales team and they can provide you with the right answers, pilot studies and quotes. For more advanced projects, we also have a team of magnetic and injection molding specialists available.
