Alnico odometer and speedometer magnets are essential permanent magnets used in vehicle instrumentation, particularly in mechanical gauges for cars, motorcycles, and other automotive applications. Made from an alloy of aluminum, nickel, and cobalt (Alnico), these magnets provide reliable magnetic fields for accurate distance and speed measurements. Commonly utilizing Alnico 2 or Alnico 3 grades, they offer a balance of strength, durability, and cost-effectiveness compared to rare-earth alternatives like neodymium (NdFeB) or samarium-cobalt (SmCo). In this guide, we’ll explore their key components, advantages, common sizes, and practical uses, highlighting why they’re a staple in the automotive industry and mechanical motorcycle repair market.
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