several of the V wheels on my machine have what i would call side to side play. basically the outer delrin wheel part moves side to side on the bearings.
on my z axis if i pull back and forth on the spindle you can see the bearings move back and forth inside the delrin wheels. this causes some concern as it doesnt appear to be all wheels that do that but probably half the ones on my machine have this issue. taking a problem vwheel off the machine, i can easily duplicate the problem with my fingers
there was a discussion on this on another thread here V wheels popoing
hoping to maybe get an official word from inventables if this is something to worry about @Zach_Kaplan