[Knufire]

Originally Posted by Henrique Schmit

What would make the wheel more practical, having the sprocket hold the bearing on place or the bearing keep the sprocket concentrical? Thanks for all the advices, we'll add the suggested changes to our project to make it better

IMO, I'd use the bearing to keep the sprocket concentric. Just making sure the right spacers are on the shaft when you install the wheel should keep the bearing in place just fine.