B230FK Timing Belt Conundrums.

[Laird Scooby]

Originally Posted by Stephen Edwin

Dave.

We are drifting in to mass vs force. A newton is the force to accelerate a mass of one kilogram....&c. &c.

Comparing force to force, a newton ≈ 0.22481 lbf (Wiki)

A four ounce apple? Yes please!



I don't pretend to really understand mass. Force, yes I know an irresistible force when I encounter it.

I was told the weight of an apple aid memoir in about 1968 by a Maths lecturer. It's the only thing I really learnt in those lectures. !!!!!!!!!!!

EDIT P.S. Would I be right to say one can only experience mass by the force resulting from its presence so it is almost an abstract?


Apologies to you Joe. Where is the cambelt in this thread now?

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Why do foreigners have to complicate things? When i was taught mass, force etc some of it was slightly different - now, having read on Wikipedia, 1N is approx 10kg in terms of gravitational pull.

The way i was taught it all those decades ago was that a Newton was also a measurement of weight, hence the Nm torque definition.

Maybe i didn't understand it correctly or maybe the teachers involved (Physics and CDT) didn't understand it so it was all learned wrongly but i passed both of those exams quite happily and then never needed to use most of what i'd learned in both in my professional life.

With lb-ft, it's simple - a weight of 1lb and a bar 1 foot long will exert a torque (turning effort) of 1 lb-ft hence the same 1lb weight on a 6 ft bar will exert 6lb-ft and a 6lb weight on a 1ft bar will also exert 6lb-ft.

The foreigners have confused torque, weight and gravitational acceleration to creat a unit that uses gravitational pull on the end of a 1 metre bar.

The sooner we get back to using the correct torque measurement of lb-ft the better!