An Alnico odometer magnet and speedometer magnet are both types of permanent magnets used in vehicles. They are typically made from an alloy of aluminum, nickel, and cobalt (AlNiCo), which gives them several advantages for this application.Usually use Alnico 2 magnet and Alnico 3 magnet.
AlNiCo odometer magnets are a reliable and cost-effective choice for use in vehicle odometers.
Alnico Odometer Magnet consist of two key components:
Outer Ring: This ring is made from a strong AlNiCo permanent magnet, typically shaped like a cylinder.
Magnetic Injection Molded Body: This body is also cylindrical and fits snugly inside the outer ring with an interference fit. It’s made from a magnetically susceptible material, often a plastic compound filled with magnetic particles.
The key feature is the shaft hole. The diameter of this hole in the magnetic injection molded body is designed to be three times larger than the diameter of the entire body itself. This specific design allows for several advantages:
Cost Efficiency: AlNiCo magnet is a more affordable material compared to rare earth magnets like Neodymium or SmCo. This design uses less AlNiCo while maintaining functionality, reducing overall production costs.
Performance: Despite using less AlNiCo, the combination with the magnetic injection molded body ensures sufficient magnetic field strength for accurate odometer readings. In some cases, it might even outperform existing designs.
Simple Production: The manufacturing process for these magnets is relatively straightforward, further contributing to cost savings.
In summary, AlNiCo odometer magnets offer a compelling combination of affordability, performance, and ease of production. This design effectively utilizes AlNiCo while achieving the necessary magnetic properties, making it a valuable choice for the automotive industry and Mechanical motorcycle repair market
Regular size for Alnico odometer magnet and speedometer magnet
1.D23*d6*4 mm for both alnico 2 and alnico 3 magnets
2.D25*D6*5 for both alnico 2 and alnico 3 magnets
