What simple macines are found in a crane?

For a project I have to label where simple machines are on a crane, it’s due tomorrow so I need to know which simple machines are on a crane and where.
3 people have submitted answers already. None of which are useful. Simple machines are lever, pulley, wedge , screw, inclined plane, and a wheel & axle. not engines and stuff that smart people Understand. I need to know which of the 6 simple machines are on a crane, and WHERE THEY ARE LOCATED!

3 Responses to “What simple macines are found in a crane?”

  1. steveo1544  on August 16th, 2011



  2. ruth4526  on August 16th, 2011

    motors, pulleys, cables, booms, winches,Where is difficult to explain. they all run basicly from the motor.


  3. sheepishbiribiri  on August 16th, 2011

    The most obvious one would be the crane itself, the crane is a third class lever..

    read more: http://en.wikipedia.org/wiki/First-class_lever#The_Three_Classes_of_Levers

    Some other simple machines:
    1) the telescopic properties or certain cranes
    2) pulley (the rollling part) is also a simple machine
    3) hydraulic cylinder
    4) the wheels used to move those big big cranes (or the rotating belts, similar to those used in combat tanks)

    read more:http://en.wikipedia.org/wiki/Crane_%28machine%29


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