## Torque and Pulley Ratio

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• I am starting out with a 20 tooth timing pulley going to a 120 tooth timing pulley and then adding another stage giving me a ratio of 36:1 total if I have this
Message 1 of 4 , May 1, 2013
I am starting out with a 20 tooth timing pulley going to a 120 tooth timing pulley and then adding another stage giving me a ratio of 36:1 total if I have this correct. What happens with the torque if I started out with 40 in-oz. would I end up with 1440 in-0z? I know it would not be 100 percent efficent.

Mike Hoblinski
• Torque time speed in radians/second is power. Yes you would increase your torque at the expense of speed. Yes there would be mechanical losses too. Dean
Message 2 of 4 , May 1, 2013
Torque time speed in radians/second is power. Yes you would increase your torque at the expense of speed. Yes there would be mechanical losses too.

Dean Schrickel,P.E.

To: theroboticsclub@yahoogroups.com
From: hobergenix@...
Date: Wed, 1 May 2013 07:03:42 +0000
Subject: [The Robotics Club] Torque and Pulley Ratio

I am starting out with a 20 tooth timing pulley going to a 120 tooth timing pulley and then adding another stage giving me a ratio of 36:1 total if I have this correct. What happens with the torque if I started out with 40 in-oz. would I end up with 1440 in-0z? I know it would not be 100 percent efficent.

Mike Hoblinski

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• Hi Dean Am I correct if I have say a 6 to 1 reduction and constant speed and torque would I see the torque increase 6 times. If say I have 40 in-Oz to start
Message 3 of 4 , May 1, 2013
Hi Dean

Am I correct if I have say a 6 to 1 reduction and constant speed and torque would I see the torque increase 6 times. If say I have 40 in-Oz to start would I see 240 in-oz on the output shaft.

Mike Hoblinski

--- In theroboticsclub@yahoogroups.com, Dean Schrickel <englewood1@...> wrote:
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> Torque time speed in radians/second is power. Yes you would increase your torque at the expense of speed. Yes there would be mechanical losses too.
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> Dean Schrickel,P.E.
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> To: theroboticsclub@yahoogroups.com
> From: hobergenix@...
> Date: Wed, 1 May 2013 07:03:42 +0000
> Subject: [The Robotics Club] Torque and Pulley Ratio
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> I am starting out with a 20 tooth timing pulley going to a 120 tooth timing pulley and then adding another stage giving me a ratio of 36:1 total if I have this correct. What happens with the torque if I started out with 40 in-oz. would I end up with 1440 in-0z? I know it would not be 100 percent efficent.
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• Minus loses, but yes you are correct. Dean Schrickel,P.E. To: theroboticsclub@yahoogroups.com From: hobergenix@sbcglobal.net Date: Wed, 1 May 2013 22:53:52
Message 4 of 4 , May 1, 2013
Minus loses, but yes you are correct.

Dean Schrickel,P.E.

To: theroboticsclub@yahoogroups.com
From: hobergenix@...
Date: Wed, 1 May 2013 22:53:52 +0000
Subject: Re: [The Robotics Club] Torque and Pulley Ratio

Hi Dean

Am I correct if I have say a 6 to 1 reduction and constant speed and torque would I see the torque increase 6 times. If say I have 40 in-Oz to start would I see 240 in-oz on the output shaft.

Mike Hoblinski

--- In theroboticsclub@yahoogroups.com, Dean Schrickel <englewood1@...> wrote:

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> Torque time speed in radians/second is power. Yes you would increase your torque at the expense of speed. Yes there would be mechanical losses too.

>

> Dean Schrickel,P.E.

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> To: theroboticsclub@yahoogroups.com

> From: hobergenix@...

> Date: Wed, 1 May 2013 07:03:42 +0000

> Subject: [The Robotics Club] Torque and Pulley Ratio

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> I am starting out with a 20 tooth timing pulley going to a 120 tooth timing pulley and then adding another stage giving me a ratio of 36:1 total if I have this correct. What happens with the torque if I started out with 40 in-oz. would I end up with 1440 in-0z? I know it would not be 100 percent efficent.

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