Flashforge Reverse Bearing Retainer

I don't know about you, but I **LOVE IT** when I'm inserting the Y-axis rods into my Flashforge Creator and the flanged 5x10x4 bearings get pushed in or better yet, fall off the rod and into the frame. Bonus points for when they fall into the little diagonal hole and then they rest on top of the motherboard. My personal favorite is when they dislodge during a print and ruin everything.

I got tired of this nonsense and designed this little sanity-saver. It's a remix of dssguy1's retainer for n