CarbideBob,
I am making the arbors so throwing them away ( if I need to) is not a big deal. Making a few hundred arbors is not a big deal, these are only 1" dia at its biggest dia. Yes I would make the area that is getting glued a rough surface. I may even spot a few dimples with a x-live tool or just turn it with a super high feedrate.
EmanuelGoldstein,
I dont know too much about the 1943 Heald. We have some applications where we use the same id grinding wheel to grind a 8deg tapered hole and then also a straight bore behind it. Must be done in one clamping to maintain concentricity.
I am sure arbors are available with screws instead of gluing. This spindle is rated for 60,000 rpms so I would imagine a nice properly glued wheel will be better balanced and reliable than a screw mounted wheel. Even though no way would I spin anything over 3/8 dia over maybe 40,000 rpms. The 60,000 rpms is for when I grind with a .11 dia wheel for our 1/8 endmill holders.