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What gears to use to reduce fan speed from fast moving motor

  1. Feb 23, 2015 #1
    hey, I am building a fan, but I need the fan blade to move relatively slow, slow enough to see each panel on the blade. I am expecting to use a gear system with a belt. What gears should I use to active this?
     
  2. jcsd
  3. Feb 24, 2015 #2

    Baluncore

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    Science Advisor

    Welcome to PF.
    First we need some actual numbers.
    What fan RPM do you require ?
    How long are the fan blades ?

    What is the RPM of the motor ?
    Is the motor an AC induction motor ?
     
  4. Feb 24, 2015 #3

    billy_joule

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    Science Advisor

    Slow enough to see each panel of a blade is a very unusual spec. Why have you assumed your blade will be made of multiple panels rather than single pieces? And why do you need to see each one?
     
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