Originally Posted by
ZAGNUT
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the whole idea behind this method is that it guarantees perfect concentricity without the need for any indicating or aligning. swapping a part end for end in a regular 3 jaw chuck there is no way you would come even close no matter how much time you spend indicating the part.
oh, and OD= outside diameter, ID= inside diameter
I fully appreciate this point. I think I am beginning to understand your description. A couple of questions arising for further clariification.
1. How is the shrink fitted hub removed from the steel mandrel after the hub is finished?
2. Is the second part of the this "one part hub" ( very confusing....... this is one of the things that threw me from the start), by that I mean the centreing plug with pin to go through the prop, machined separately and shrink fitted into the hub?
3. How can the hub be removed if required later? There are no provisions visible to take the jaws of a puller.