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Gears and Gear Ratios
3 years ago
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16 Replies
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8045 views
Antony
With this setup of gears, would they all move at the same speed, or would 'A' have a lower RPM as it is larger?
Thinking about the number of teeth they have, they'd all move at the same RPM, or is that incorrect because of the size difference?
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16 Answers
Without counting the numbers of teeth, if for example A had twice as many teeth as B, B would need to turn twice for every rotation of A; B would have twice the RPM of A. A similar idea would apply between B & C, such that you only need to look at the ratio of teeth between A and C to find the RPM of C ( B effectively 'cancels' out)
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