CR10S Pro upper filament guide

I'm fairly new to 3D printing and just bought a CR10S pro. I created this upper filament guide because:
1. I cant leave anything stock.
2. I wanted to create something that mounted to the frame.
3. I have a bunch of old abec 5 bearings from inline hockey skates laying around.
4. I'm looking for excuses to print things.

To mount to the frame I used M3 x M8 screws with t-nuts. For the bearing I used an M16 screw and m3 nut. The screws and the nut are countersunk.
The bearing spacer is sized for the ID of the bearings I have. If you create some the thickness of the base of the spacer is 1.5mm.