wheel and axle

/W IY1 L AE1 N D AE1 K S AH0 L/
noun
  1. 1

    A simple machine consisting of a wheel (or similar lever) that turns an axle around which a cord is wound; its mechanical advantage is the ratio of the diameters of the wheel and axle.

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Source: https://en.wiktionary.org/wiki/wheel%20and%20axle