most silent RC servo?

Question

I am trying to build a gadget with a RC hobby servo. What I need is about 60-90 RPM and that seems doable with a regular hobby servo.

So I bought a couple of cheap ones (15-20 euro/$) from which I removed the mechanical stop and potentiometer and other electronic guts I don't need.

But I find them rather noisy. It ruins the effect of the gadget that I have in mind. Ideally it should not make any noise at all.

What is considered as the most silent RC servo? Brand? Model?

I also found a small gearmotor in my rubbish box, it is made by Bertsch. This one is quite silent, but I don't know where to get these in single quantaties. If anyone knows where to get these...

Gordon McComb · Accepted Answer

No R/C servo is really quiet, though you might have better success with a higher-end Futaba or Hitec. Opt for one with metal gears. Don't expect miracles, though.

Try Como Drills for small gearmotors. They have precision metal gears and the (older) ones I have are pretty quiet.

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They are based in the UK.

-- Gord>

Chris S. · Answer

Motors and gears are inherently noisy. If you want completely silent actuation, look into shape-memory alloys (e.g. muscle wire, nitinol, flexinol) or electrically activated polymers.

Chris S. · Answer

Actually, if your actuation needs are miniscule,  offers completely silent linear and rotational actuators.

Frank Bemelman · Answer

"Chris S."  schreef in berichtnews:3LM2d.590$4j1.181@trndny06...Yesterday I found a motor, made by Robbe, well actually Bertsch. Verysilent, I have to hold it against my ear to hear it wirring. You canfind them at  number is 1-4123 and some others.Perhaps this link works:

most silent RC servo?

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