Can I desgn a rotating disc without using a centre shaft

  • Thread starter jeredane
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  • #1
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Is it possbile to spin a disc that has a hole in the centre like normal DVDs but without using a rotating centre shaft that is passing through the hole?

The spining disc has to be supported too by a structure. Is there any mechanism to recommend?
 

Answers and Replies

  • #2
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Yes, it is possible. There are a number of ways to do this, but it all comes down to a rim attached to either the inside of the hole or the outside of the wheel. This rim slides through the supporting structure.

Some practical examples, demonstrated on bicycle wheels:
http://www.designboom.com/weblog/cat/8/view/11207/hubless-spokeless-bicycle-wheel-compilation.html [Broken]
 
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  • #3
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Hey.. THanks for the reply!!

How about if the disc is being spin horizontally? is there anyway of supporting the disc without the centre shaft?
 
  • #4
549
28
Three or more rollers around the rim with one or more driven to provide spin.
 
  • #5
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The following picture is a ride that i have design. the outer and the inner layers spin in the same direction and the middle layer spin in the opposite direction. how can i spin the outer layer of the ride and the middle layer of the ride? where can i place the driver?

If i were to use a planetary gear that is very big is it possible? Is there anyway to supend the gears in mid air and let it rotate?
 

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