Subject:
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Re: Unique Gear Part - what is it 2.5 /5.0 in Motor Kit
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 14 Sep 1999 05:39:10 GMT
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Viewed:
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596 times
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In article <FI1Ato.BEM@lugnet.com>, "Matt Silver"
<silverm@tech-center.com> wrote:
> What is the gear marked 2.5 /5.0 that comes with the Motor kit ?
> The gear looks lie a 24 tooth, but is white and a bit thicker, and has a
> grey hub inside that turns.
>
> As far as I can tell, the point is if the gear jams/binds or the object trys
> pushing a wall, the inner hub will still turn, thus reducing the chance of
> burning out a motor.
>
> Is there more to it that this ?
Nope, that's the purpose of the gear. I think the Technic Element
Registry calls it a "clutch gear".
I find it handy to have around. It slips pretty easily, so you need to
gear down after it to get any reasonable amount of torque. Even so, I can
usually make more compact designs with it than the alternative of pulleys
and rubber belts.
Dave Baum
--
reply to: dbaum at enteract dot com
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Message has 1 Reply:
 | | Re: Unique Gear Part - what is it 2.5 /5.0 in Motor Kit
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| (...) It starts slipping somewhere between 2.5 newton-cm and 5.0 newton-cm. "newton-cm" is the SI unit of torque and corresponds to a force of 1 newton at a radius of 1 cm, or a force of 0.1 newton at a radius of 10 cm, etc. [1] The reason for the (...) (25 years ago, 14-Sep-99, to lugnet.robotics)
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Message is in Reply To:
| | Unique Gear Part - what is it 2.5 /5.0 in Motor Kit
|
| What is the gear marked 2.5 /5.0 that comes with the Motor kit ? The gear looks lie a 24 tooth, but is white and a bit thicker, and has a grey hub inside that turns. As far as I can tell, the point is if the gear jams/binds or the object trys (...) (25 years ago, 14-Sep-99, to lugnet.robotics)
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