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Worm Gear/ Spur Gear

  1. Apr 17, 2006 #1
    Does anyone know if it is possible to get a worm gear mechanism to work using a spur gear. I am just trying to make a small model of a worm gear out of acetal plastic for demonstration purposes only. I am thinking it might work as long as the pitch on the lead screw, is the same or a little larger than the pitch on the spur gear. What do you guys think?
  2. jcsd
  3. Apr 17, 2006 #2


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    Gold Member

    You can do it, but it's not pretty. I've had to use a system like that in an emergency a couple of times. Your gear life is pretty short compared to a properly matched set, and there's a lot more mechanical loss due to friction, impact loading, etc..
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