Quote:
Originally Posted by Sh1ine
Well the question is, what do you plan to do with a wheel that does not have bearings?
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Use a hub to connect it to a keyed shaft. Drive the shaft with a sprocket. Mount the shaft so it spins in bearings.
One way is called a live shaft. The other is a dead shaft. Both are perfectly viable options depending on the specific application.
Our team tends to use dead shafts for our wheels, visible in this photo:
https://lh4.googleusercontent.com/-G...0/100_2947.JPG
But our shooter prototypes use live shafts:
http://www.youtube.com/watch?v=neqyzZ1SM2w
Here is an evaluation of the pluses and minuses in one specific application:
http://www.epochind.com/live-vs-dead.htm