For a mechanical design, I would need a small/light axle, having high precision (as less loose as possible and reduced drag). With precision, there is not a very strict definition, however, I target ~0.2º of radial rotation (axial movement is not that an issue).
The length of the axle is around 24mm, on which I would attach a few elements (~50g).
The first idea is to use a bearing on each side of the axle, but I am not sure what is the good practice for attaching the bearing.
Following is my current sketch:
The closest example of what I am doing is the axle in the actuator of a Hard-Disk, however, the bearing there is internally tapped for fixation. Most of the bearing I found on the market are not tapped. My feeling is that tapping the bearing is not a good idea.
My question is:
What are the commonly use pieces, practices, terms and fixations for this type of problem?
I understand is a quite broad question, but either I miss terminologies and in any case I did not found answers online. Also, I do not need a deep answer, but some indications of where to look further.
Others possible tags: axle, matched-set