pic: Toughbox Mini Bound Up On AM14U3 KoP Chassis

[mastachyra]

Originally Posted by Munchskull

I would not risk using an unshielded bearing. If this game is even half as bad as 2014 your steel gears will have a ton of wear by the end of the season, that leads to steel powder in the gearbox, i have no idea what the poweder would due to an open bearing but i would suggest we not find oit. I know that vex has bearings with a 3/8 ID that are shielded that I believe would fit.

I think the Vex bearings that would "fit" are the same thickness as the ones GDG 2337 pointed out above as too thick. You'll need to find the 0.218" thickness. McMaster-Carr does not have this bearing in shielded form either.