torque conversion
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  1. #1
    Budding Architect ???? pugrambo's Avatar
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    Default torque conversion

    ok heres one that i have searched high and low for and have never seem to be able to get an answer

    how does one convert m.daN (m.kg) to lb.ft or Nm ???

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    the closest i have found which is still way off is kg/m to lb.ft which is 7.236

    that should get a few books out and people thinking
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  2. #2
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  3. #3
    Fellow Frogger! winnie's Avatar
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    Default

    Quote Originally Posted by pugrambo
    ok heres one that i have searched high and low for and have never seem to be able to get an answer

    how does one convert m.daN (m.kg) to lb.ft or Nm ???

    the closest i have found which is still way off is kg/m to lb.ft which is 7.236

    that should get a few books out and people thinking

    kg's and lb's are measures of mass not force and shouldn't 'strictly speaking' have been used in a relationship to describe a torque. A Torque is a rotary force, to get a force from a mass it must be accelerated. Acceleration due to gravity is ~10m/s/s (9.81 but i'm not going to get too precise because it actually varies slightly depending on your proximity to the equator) Rant over

    From primary units (the conversions of these have some inaccuracy)

    1kg = 9.81N 1m.kg = 9.81Nm

    1kg = 2.2lb & 1m = 3.281ft 1m.kg = 2.2*3.281=7.2182lbft

    A little rough but if your not putting a man on the moon these should get you by.

  4. #4
    Gone Fishin' Ray Bell's Avatar
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    Default

    You could always read it off the scale on torque wrenches with both measures...

  5. #5
    Budding Architect ???? pugrambo's Avatar
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    Quote Originally Posted by Ray Bell
    You could always read it off the scale on torque wrenches with both measures...

    and would you believe it the Snap-on man went through all that and still couldn't find it either

    so even with the info so far as this is for head bolt tension at 4.5m.daN that means 32.5 ft.lb torque
    3 x '78 604 SL

    1 x '98 306 GTi6

    1 x secret project

    1 x '98 406 STDT troop carrier and i don't care if it stinks, i don't sniff it's arse Death by wank tank

    1 x '99 406SV 5spd wagon, time to burn more fuel

    1 x 1994 605 SV3.0


    WTD long range fuel tank for 605

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