How can I model this spinning ring?

This ring consist of three parts 2 sides & one gear like structure in center the center part can spin.

I need to make parts in a way so that it happens and finally assembly it. suggest me good techniques to model that spinning structure. If we can do it by putting a bearing than how the overall assembly will look internally. Need suggestions

thanks.

1 Answer

I've seen such rings, but never considered how they are made.
From what I can see, there are two main methods used.
- One is rather high tech with machined parts.
- The other is rather low tech and relies mainly on a hammer.

Low tech: https://www.youtube.com/watch?v=3YgjCQ3Lzeo
Closer to the high tech look: https://www.youtube.com/watch?v=Xxc3vtb5UDQ

There are some models you can look at in the library as well:
Prayer/Worry Ring

Fidget Ring