Poll

What do you think are the correct units of torque ?

lb/ft (imperial) N/m (metric) somtimes referred to as lb per foot or Newtons per metre
3 (50%)
lb ft (imperial) Nm (metric)
1 (16.7%)
Don't know
2 (33.3%)

Total Members Voted: 4

Author Topic: What do you think are the units of torque ?  (Read 8864 times)

DeuxCentCinq

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Re:What do you think are the units of torque ?
« Reply #10 on: 25 October 2003, 21:32 »
While we're at it...

Pressure = Force / Area

The units are therefore :

N/m2 (Newtons per square metre)

I think I'll leave it there  :P

kniterider

  • Guest
Re:What do you think are the units of torque ?
« Reply #11 on: 25 October 2003, 22:59 »
yeah leave it there as you can see by the results of the poll i dont think people give a toss, were all here for 1 reason that being the car that will take over the name of the peoples car 'golf' will out sell beetles(hey not knocking the air cooled brigade cause ive been there and done that) along with the mk5 the golf will be the peoples car and the phrase GTI is why were here, we know roughly all the book figures etc and we dont need some garlic munghing bagette driver tellin us the is and out of torque, all we like to do is discuss them, tune em, polish and drive em thank you enough said mr frenchy sounding name man!

Offline AlanGTI

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Re:What do you think are the units of torque ?
« Reply #12 on: 25 October 2003, 23:03 »
DeuxCentCinq wow cheers for all that sh!te mate!

Just printed a version off, should get me to sleep much quiker tonight.
« Last Edit: 25 October 2003, 23:04 by AlanGTI »

golfvr6

  • Guest
Re:What do you think are the units of torque ?
« Reply #13 on: 25 October 2003, 23:57 »
If people only cared about that figures rather than the units, then why did I see so many posts where people argued that their definition was the correct one ?!

I would say that it does matter, for example:

If a wheel bolt is particularly difficult to undo, i.e. it's very tight.  You would need to increase to torque that you're applying in order to undo it.

If we say that the force you can supply is constant i.e. you always apply the same force using your muscles or body weight etc.  Then how do you increase the torque ?

If we assume this definition of torque :

Torque = Force/Distance

Then this suggests that to increase torque you need to DECREASE the distance.  
This is clearly INCORRECT as we all should know that using a longer bar will help us undo the wheel.

Everyone knows that a longer bar (greater distance) will help us to undo the stubborn bolt, but it appears that not everyone knows that what is actually happening when you do this is that the torque is increased.

The CORRECT definition is :

Torque = Force * Distance

From this formula you can see that to increase torque you can increase either the force or the distance or both.

The SI units are :

Force is measured in Newtons (N)
Distance is measured in metres (m)

Therefore the units of torque are :

Newton Metres or Nm if you prefer.

In the UK we still sometimes use imperial units, in this case Pounds (lb) and Feet (ft), so you might see the units of torque written like this :

lbft

For goodness sake, if anyone wants proof you'll probably find it's written on your torque wrench !  (I take it everyone know's what one of those is)

The units are NEVER, EVER any of these:
N/m
Newtons per metre
Nm-1
lb/ft
Pounds per foot
lbft1

If you see any of them used then the person that wrote it is wrong.

Here's the correct description:

The torque generated about an axis is defined as the product of the component of the force perpendicular to the axis and the perpendicular distance between the line of action of the force and the axis.

(For those that didn't understand it the first time, "product" means multiplied by)

Perhaps I should have put this post up to start with, I just hoped that the first time I provided the description coupled with this poll some people might have put 2 and 2 together !


You really are a sad f**k*r aren't you?

Offline Glen

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Re:What do you think are the units of torque ?
« Reply #14 on: 26 October 2003, 00:09 »
What the f*ck is this Sh*t?
Torque is cheap or so they said in ww2
Who really gives a sh*t?
Only the nerdy c*nts obviously.

golfvr6

  • Guest
Re:What do you think are the units of torque ?
« Reply #15 on: 26 October 2003, 00:15 »
If you don't like my misleading posts (plenty of people do) then go form your own forum for queers  :-*

DeuxCentCinq

  • Guest
Re:What do you think are the units of torque ?
« Reply #16 on: 27 October 2003, 09:50 »
If you don't like my misleading posts (plenty of people do) then go form your own forum for queers  :-*
 - Only if you promise to stop being wrong  :P

Perhaps if my username had been something like 'BratwurstSaugen' then you (in particular) may have been a little more receptive. ;D

Not once have I argued the merits of a 205 or any other French car nor have I put down your beloved Golfs, however you still appear to have some sort of problem?

Don't bother replying to this as I can already guess your response, no doubt it will contain some sort of homophobic theme, methinks the lady doth protest too much....
« Last Edit: 27 October 2003, 09:50 by DeuxCentCinq »

Offline Slim Shady

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Re:What do you think are the units of torque ?
« Reply #17 on: 27 October 2003, 12:20 »
Zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

golfvr6

  • Guest
Re:What do you think are the units of torque ?
« Reply #18 on: 27 October 2003, 14:44 »
If you don't like my misleading posts (plenty of people do) then go form your own forum for queers  :-*
 - Only if you promise to stop being wrong  :P

Perhaps if my username had been something like 'BratwurstSaugen' then you (in particular) may have been a little more receptive. ;D

Not once have I argued the merits of a 205 or any other French car nor have I put down your beloved Golfs, however you still appear to have some sort of problem?

Don't bother replying to this as I can already guess your response, no doubt it will contain some sort of homophobic theme, methinks the lady doth protest too much....

Thanks mate, i think i'll go back to sleep now  :-*

kniterider

  • Guest
Re:What do you think are the units of torque ?
« Reply #19 on: 27 October 2003, 19:30 »
give me a bell to wake me up when hes gone!