Inch pounds vs foot pounds question

bretto

Willytime
Location
Orem, Ut
With a torque wrench that is measured in foot lbs, that means how many lbs that are on the end of 12" right? (one pound hung on the end of a 12" bar would 1' lb at the opposite end). Is that the same for inch pounds but only the weight would only be 1" out? Or am I way off? Dumb question right? Oh and where can one find a inch pound torque wrench?

Brett
 

Caleb

Well-Known Member
Location
Riverton
you can get inch pound torque wrneches just about the same places you can get foot pound ones, I know Sears has them, as does Home Depot.
 

Medsker

2024 Jeep Wrangler Unlimited Rubicon 392
Location
Herriman, UT
Torque is the measure of twisting force. The length of the handle has nothing to do with it other than the fact that whatever the length is you have to multiple the torque by the handle length. (Boy I didn't even understand what I wrote) So for example there are very few people in the world that can reach down with their hands and turn a nut to 100 ft-lb, however, if you take 100 and divide it by 2 (a 2 foot handle) you get 50. Now most people can grab onto a two foot handle and pull 50 pounds. Now granted most torque wrenches are 18" long but I used 2 feet long for simplicity. Now depending on what inch pounds you need, if it is a little bit high, you can still use a foot pound wrench, just multiply or divide by 12. So 12 inch pounds equals 1 foot pound. So divide your inch pounds by 12 and viola...how do you spell viala...anyway there you have it. Well sorry you now have more info than you wanted so Sears, Craftsman, Part number 44560, Price $59.99.

Medsker
 
Location
Murray
bretto said:
With a torque wrench that is measured in foot lbs, that means how many lbs that are on the end of 12" right? (one pound hung on the end of a 12" bar would 1' lb at the opposite end). Is that the same for inch pounds but only the weight would only be 1" out? Or am I way off? Dumb question right? Oh and where can one find a inch pound torque wrench?

Brett

You're actually right. 1 lb, one foot away from the point you're rotating is 1 ft lb, same with inch lbs. one inch 1b is 1 lb, one inch from the moment, or 1/12 a lb, one foot from the moment.
 
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