most of all the set screw on the carrier, I think.
It's a caged ball bearing, so I think it will survive.
Greg , A couple of notes for now. 1 , It is not at all a good practice to secure a ball bearing outer race by clamping with a set screw .
Greg- It is very unusual to secure a bearing race with a setscrew. I would suggest using Loctite 620, Cylindrical assembly retaining compound. The virtues can be found on Loctite's website. -s.