I found a 5HP, 1ph, 3450rpm motor that I was considering building a dust collector with. It has a 5/8" shaft.
I also found a 15.5" diameter backwards-inclined impeller. Based on what I've read, this would likely be approximately appropriate for a 5HP motor. However, it has a 1 5/8" bore.
I'm considering building a blower housing (based on Bill Pentz's plans) and a "pull-through" cyclone (the impeller is "closed" - plates on top and bottom - so I understand it shouldn't be used to convey "dirty" air, so it will go on the "clean" side of the filter).
My concern is: how do I safely/correctly mount the impeller (with 1 5/8" bore) onto the 5/8" motor shaft? It looks like a "D" series QD bushing would work, but would I need to drill/tap holes in the impeller for the bolts? Is there another way to make this connection? Is there any concern with a bushing this large causing the impeller to become unbalanced?