I’ve recently seen videos on YouTube showing gear ratios like 30 million to 1 when you spin the first gear super fast at 10.000rpm and the last gear spins so slow it would take 300 hours to spin once for example. Searching for the opposite doesn’t give any result, the highest I found was 1:625.
Why is that we can have millions:1 gear ratios but not 1:millions?
In: Engineering
It would be really hard to push the first gear because the friction of the last gear spinning is multiplied back into the first gear. The reason we use gear ratios is because we trade speed for torque, so if we want the last gear to go fast we need a lot of torque.
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