These are 1 1/8" versions and both of them have the bevel sitting proud like your GripNut does:
Both of them have an air gap when mated to the bearing cup, probably big enough to fit 2 or 3 sheets of paper into, but the profile as viewed from the side looks "right" so I think this is by design. It's possible that either CK made a running change in how deep the bearing sits in the cups, or that 1" is different, or some other explanation I'm not thinking of.