Thanks for all the responses and insight, truly appreciated. That 3-d cartoon is missing a lot of detail that I didn't have time to put in so I'll do my best to describe what is missing for now and maybe I'll go back and add some detail to the model if I find the time.
Scale: The inner most...
Plain bearings were the first alternative that came to mind, I just worry about the durability and maintenance of such a system. A little more information about the machinery in question:
The center shaft will be driving a large diameter cantilevered carousel, each concentric shaft from there...
Is it possible to design a system of multiple, independently rotating, concentric (up to 9 shafts)? The inner most shaft must be at least 75mm dia and the rpm between each layer will be 125 at the peak. Leaving out manufacturing and tolerancing difficulties for now, are there any ways to...
