Hi Jim and 'Nando,
Of course most of these illustrations are Hans Burgkmair's work.
As to the standed wheel which Maximilian's companion is also shown to wear on the front of his coat in another of Burgkmair's engravings in the
Theuerdank (attached), I cannot see any relation between this spinning wheel and St. Chatherine's wheel of torture. I would suggest the spinning wheel (
Spinnrad) has to do with either the guy's profession or even his name - just like the symbols painted on shields and pavises.
Best,
Michl