@lemur Oh, you mean through the wheel, so the axle would actually stick out further or less on one side by a fraction of a millimeter. I don't have a digital caliber, but I could hold my finger against the axle and bearing and probably be able to feel if it moved, since you are talking about the 1/10th of a millimeter scale. Well, at least in 9 of my fingers I should be able to tell.
I thought you were talking about play between the axle and the axle adapter.
I have stock of the Grizzly ceramic b/c I pick a bunch up when they go on sale, but I was thinking about trying out DHM or going to another brand when I have to change them next. When I change them, the pack grease appears to be almost completely gone. I have also wondered if the Grizzly's are more affected by the extremely high quantities of iron in soil near me. It definitely tries to work its way through the bearings and towards my motor.