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I'm planning to drive a small linear guide (4cm long) with a servo in a setup like this:

enter image description here

I wonder if the ball bearings inside would sustain too much stress due to the vertical forces exerted by the links whilst driving it linearly. AFAIK ball bearings can support reasonable radial load, but I'm aware that these guides are usually driven by lead screws instead. Is it a good idea to drive the guide the way presented above?

John M.
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1 Answers1

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If you limit the retracted angle of the arm to $\ a<60^{\circ} $ it should be ok.

That would limit the maximum vertical load at two times the horizontal push.

$ F_y = \ \leq 2F_x$

kamran
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