Yes as Hockenbery shows, the turning of heavier pieces was often done by craftsmen, one offs or maybe a series of pieces.
Basically before my time, but because of the war anything and everything was hauled out of the corners and used, repaired and renewed and so I was there as a kid to look and see what was done to repair things.
Wooden wagons were fixed the wheel rings shortened, heated and replaced.
Hubs were fixed or new ones turned, spokes and rotted parts were renewed.
So in our blacksmith shop there ware repairs done and at the wagenmaker/wheelwright there was new parts or whole new wagons made.
To turn the heavy wheel hubs they used a large wagon wheel with a belt running to the lathe, one person rotating the wheel and the wheelwright doing the turning, iron rings where fitted on the hubs and a tapered cast iron bearing sleeve fitted in the hub.
So yes simple stuff but you did have to know the how and what, plus often improvising, just make it work!!
