Questions and answers on how to convert things from one unit or system to another
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Fri Apr 14, 2006 7:38 pm
I've been told to tighten a set of bolt down to a certain pressure (measured in kgf which I know can be converted into N/mm squared). Of course my torque wrench is marked in Nm. I appreciate that one is a measurement of pressure and the other is torque and therefore the units are incompatable, but I assume that the calculation can be done. Do I need to take into consideration the size of bolt, whether or not the bolt has been greased, the length of my wrench, or any other details? Answers in words of one syllable please.
Tue May 09, 2006 6:37 am
1 kgf is equal to 9.80665 N. Torque arising from a perpendicular force, in Nm, is calculated by multiplying the force, in N, by the distance of the force from the centre (roughly equivalent to the length of the wrench, if you are applying force near the tail end), in m.
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