(Eli5) Why do Buses & Trucks use 2 skinny wheels put together on each side of the axle? Instead of just using one fat wheel?
In: Engineering
despite what you may think its actually the air pressure in the tire that holds the weight and not the rubber itself. to hold more weight you can increase pressure, but a single tire can only hold so much pressure safely. this is where adding more tires comes in
each tire is rated to hold a specific amount of weight at a specific pressure, so if you need to hold more weight you add more tires.
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