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Force required to turn shaft

  1. Aug 17, 2009 #1
    What is the force (horsepower) required turn a 750mm diameter shaft with a mass of 1,000kg, at a velocity of 160 rpms, with a weight of 2,500kg applied to the shaft?

  2. jcsd
  3. Aug 17, 2009 #2


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    Staff: Mentor

    Welcome to the PF. What is the context of your question? Is it homework, coursework, a school project, or something you are designing and building?
  4. Aug 17, 2009 #3
    For one thing you need to decide how the 2500 kg weight is applied....how it's distributed about the shaft.....for example if it's on a rigid bar hanging from a horizontal shaft that whole assembly will not go easily....if that's the weight of the shaft itself, evenly distributed, a lot less torque is required....
    Also, force and horsepower are two different physical entities...are you aware of their relationship??
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