The method I was shown was to take an Allen style wrench and grind most of the leg off leaving a flat ended stub which fits behind the cup. Place hub with cup to be removed on wooden bench or board and hammer away from the other side ,rotating the punch 180o then 90o. Learned this while working at my Dads shop which was originally a Blacksmith/ Stable where my Grandfather kept the horses for his Hay Bailing rigs, Must be why I have such a great selection of hammers out in the garage.
BOB '' HAMMER and
CHISEL'' FREITAS
MILL
VALLEY,CA the USA
where the old blacksmith shop made way for an
apartment building recently