All Junior Cert Material Technology Wood posts
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    R.p.m short question Padraigoc

    Anyone know how to calculate the rmp when your given for example 'if gear a is rotated at 42 revs per min (15 teeth on gear a - 7 teeth on gear b -5 teeth on gear c) what is the rotational speed of gear wheel c?'

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      Hi Padraigoc! Since Gear C is three times smaller than Gear A, Gear C will have an rpm three times larger than Gear A. This means Gear C will rotate at 126rpm (42rpm × 3).

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      Thanks a lot :)

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