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  • Small Plastic Gears

    I have a project which requires small plastic bevel or crown gears. I'm looking for ones in the 1.25" - 2" (30mm - 50mm) diameter range. I've done Google searches, eBay searches, which have yielded gears which are in 1/2"- 3/4" diameter range or ones which can be special orders for $50 each. I'd like to find ones which are cheap ($1) range and would appreciate if anyone who would happen to know of a place where I could get them. Thanks.
    Bill

    Being ROAD KILL on the Information Super Highway and Electronically Challenged really SUCKS!!

    Every problem can be solved through the proper application of explosives, duct tape, teflon, WD-40, or any combo of the aforementioned items.

  • #2
    Not sure how much force the "small plastic" gears will need to stand up to but since they are "small" and "plastic" I do have one suggestion: LEGO. LEGO Technic has a lot of small plastic gear parts including some crown gears. Another "toy" that may have useable parts: Kinex.
    My cup 'o plasma: https://www.youtube.com/watch?v=H1vMfmhM9fg No dialog, just ten minutes of dancing plasma and music. Turn on, tune in, space out.

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    • #3
      Last year's printers, from the recycle center, neighbor's trash or yard sale.
      "A machinist's (WHAP!) best friend (WHAP! WHAP!) is his hammer. (WHAP!)" - Fred Tanner, foreman, Lunenburg Foundry and Engineering machine shop, circa 1979

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      • #4
        Try McMaster Carr, they carry a good selection of plastic gears. Bob.

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        • #5
          Maybe form your own gears?





          Just press the steel gear against the spinning plastic blank and friction will soften the plastic enough to for the teeth.

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          • #6
            Google Stock Drive Products

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            • #7
              Also check www.surplusshed.com. They have a wide assortment of gears in your price range. Also maybe consider getting plastic pulleys for timing belts, and reshape the cogs to correct gear tooth form.
              http://pauleschoen.com/pix/PM08_P76_P54.png
              Paul , P S Technology, Inc. and MrTibbs
              USA Maryland 21030

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              • #8
                PICdesign.com

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