I have spent the last days designing the axial bearings

and have done research for which

configuration I am going to use.
I had first thought of using a ZARN type of bearing .

But they were too expensive .
So I made my own a design with two axial needle bearings and one radial needle bearing.

Then I have the same result as the ZARN bearing.
I can preload them as I want.
Today I received the CNC handwheel.