my motor does tha same thing, lm not to sure about it but wen l pulled my motor apart to see somthing, ther pole was stuck on the side cause its magnetic, lm sure someone else has a better answer than me though, not to sure
soz
The bearing is glued in his housing. After some run (100-150 batteries for me), the glue does'nt glue anymore and you have to reglue it, other than that the housing will take some play (but not immediatly).
Anyway it's not normal to have this kind of side play after a few run.
Inferno VE MMv3 NEU-CC 1515/1Y 4S "Flying machine"