I mean some pics of buffs, and arbors and adapters...
A left hand taper adapter for a straight shaft grinder/buffer. Bought it from Rio Grande. It attaches to the straight shaft with the two setscrews.
Buffs with pin holes are used and they screw on.
A deburring/unitized/beartex wheel held on a grinder. The large washer transmits the rotational force to the wheel.
The hole in the wheel is larger than the shaft and reduced by the bushing.
I made the bushing myself on the lathe, but they are a common part that often come with grinding wheels when you order them.