I'm looking for a few basic devices such as converting translational to rotational motion, 20:1 gearbox, etc. Found nothing at Home Depot. Could you suggest where does one buys/orders such components?

  • 2
    $\begingroup$ Try macmasters-carr $\endgroup$
    – joojaa
    Nov 17 '19 at 21:29
  • 1
    $\begingroup$ Try part suppliers for robotics hobbyists. $\endgroup$
    – alephzero
    Nov 17 '19 at 23:08
  • $\begingroup$ This question would have potential as a community wiki where the answer is a collection of vendors. I've listed a few in my answer, but there are many more. $\endgroup$
    – Eric S
    Nov 19 '19 at 21:28
  • $\begingroup$ This looks like a resource-hunting question. Such questions are prone to becoming out-dated, and are therefore considered off-topic for this site. $\endgroup$
    – Wasabi
    Nov 21 '19 at 0:12

Here are my go to sources:


If you are a company you should definitely go look on Misumi but they don’t sell to private. Otherwise you could google for what you need and in most cases you will find some website selling it. I bought bearings, gearboxes and motors without issues of any kind.

  • $\begingroup$ Alas, I'm not a company. :-( $\endgroup$
    – Michael
    Nov 18 '19 at 18:36

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