Bearing cleaner

I share this example of bearing cleaner mostly for the idea, rather than for instant printing : as it's made to fit the empy jar I had.
I went for stability of the bearings in the most efficient way I found.
I used flexible filament because I like the one I have and it's easier to fit the stabilizing stages in the jar.
For using flexible, I had to go for the 100% infill for the rod to be stiff enough.
I used supports just for the concave of the lower cross which I made to match the shape of the bottom of the jar.
The rod is as high as the jar (slightly pushes the cover out).
I calculated the height of spacers and top cross for the whole stack of (7mm bearing -spacer)*7 + bearing + top cross to finish at the top of the rod.

I think this minimalistic designed worked great and was fast and easy to print. In my case I could shake everything strongly, for the cleaning without anything moving.

I invite you to copy the design if you need, not print directly as it's obviously ver