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Raveninghorde
Guest
Tue Jan 31, 2012 10:40 am
I need to advise a US customer of the correct torque setting for some
4mm screws. I need to know the normal units Americans would use on
their torque drivers. Ounce inches? Pound inches? The SI setting is
0.9kgf.cm.
John Fields
Guest
Tue Jan 31, 2012 12:11 pm
On Tue, 31 Jan 2012 09:40:59 +0000, Raveninghorde
<raveninghorde_at_invalid> wrote:
Quote:
I need to advise a US customer of the correct torque setting for some
4mm screws. I need to know the normal units Americans would use on
their torque drivers. Ounce inches? Pound inches? The SI setting is
0.9kgf.cm.
---
Either is acceptable, with "ozf.in" perhaps being more convenient for
the value you state.
--
JF
Mycelium
Guest
Tue Jan 31, 2012 1:43 pm
On Tue, 31 Jan 2012 05:11:32 -0600, John Fields
<jfields_at_austininstruments.com> wrote:
Quote:
On Tue, 31 Jan 2012 09:40:59 +0000, Raveninghorde
raveninghorde_at_invalid> wrote:
I need to advise a US customer of the correct torque setting for some
4mm screws. I need to know the normal units Americans would use on
their torque drivers. Ounce inches? Pound inches? The SI setting is
0.9kgf.cm.
---
Either is acceptable, with "ozf.in" perhaps being more convenient for
the value you state.
Yes. Ounce/inch is what is used most often for small fasteners.
Most that are used for small electronic assemblies.
There is a mil spec for US sizes,and I am fairly certain there would be
US declared specs even for metric sized fasteners.
I found this, but it isn't the one I was looking for. It is the test
method, which might have some values declared in it.
http://tinyurl.com/7t5n5rc
John Larkin
Guest
Tue Jan 31, 2012 4:19 pm
On Tue, 31 Jan 2012 09:40:59 +0000, Raveninghorde
<raveninghorde_at_invalid> wrote:
Quote:
I need to advise a US customer of the correct torque setting for some
4mm screws. I need to know the normal units Americans would use on
their torque drivers. Ounce inches? Pound inches? The SI setting is
0.9kgf.cm.
kgf? cm? The SI units are newtons and meters!
--
John Larkin, President Highland Technology Inc
www.highlandtechnology.com jlarkin at highlandtechnology dot com
Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom timing and laser controllers
Photonics and fiberoptic TTL data links
VME analog, thermocouple, LVDT, synchro, tachometer
Multichannel arbitrary waveform generators
Tim Wescott
Guest
Tue Jan 31, 2012 5:11 pm
On Tue, 31 Jan 2012 09:40:59 +0000, Raveninghorde wrote:
Quote:
I need to advise a US customer of the correct torque setting for some
4mm screws. I need to know the normal units Americans would use on their
torque drivers. Ounce inches? Pound inches? The SI setting is
0.9kgf.cm.
Kgf.cm? And you're trying to tweak us for not adhering to MKS?
Kgf is a bastard unit, for sure, and cm isn't exactly a meter on some
even exponent of 1000 thereof.
--
Tim Wescott
Control system and signal processing consulting
www.wescottdesign.com
John Fields
Guest
Tue Jan 31, 2012 7:23 pm
On Tue, 31 Jan 2012 07:19:24 -0800, John Larkin
<jjlarkin_at_highNOTlandTHIStechnologyPART.com> wrote:
Quote:
On Tue, 31 Jan 2012 09:40:59 +0000, Raveninghorde
raveninghorde_at_invalid> wrote:
I need to advise a US customer of the correct torque setting for some
4mm screws. I need to know the normal units Americans would use on
their torque drivers. Ounce inches? Pound inches? The SI setting is
0.9kgf.cm.
kgf? cm? The SI units are newtons and meters!
---
http://en.wikipedia.org/wiki/International_System_of_Units
--
JF
Joerg
Guest
Tue Jan 31, 2012 8:04 pm
John Fields wrote:
Quote:
On Tue, 31 Jan 2012 07:19:24 -0800, John Larkin
jjlarkin_at_highNOTlandTHIStechnologyPART.com> wrote:
On Tue, 31 Jan 2012 09:40:59 +0000, Raveninghorde
raveninghorde_at_invalid> wrote:
I need to advise a US customer of the correct torque setting for some
4mm screws. I need to know the normal units Americans would use on
their torque drivers. Ounce inches? Pound inches? The SI setting is
0.9kgf.cm.
kgf? cm? The SI units are newtons and meters!
---
http://en.wikipedia.org/wiki/International_System_of_Units
So what's kgf?
--
Regards, Joerg
http://www.analogconsultants.com/
Fred Abse
Guest
Tue Jan 31, 2012 9:19 pm
On Tue, 31 Jan 2012 09:40:59 +0000, Raveninghorde wrote:
Quote:
I need to advise a US customer of the correct torque setting for some
4mm screws. I need to know the normal units Americans would use on
their torque drivers. Ounce inches? Pound inches? The SI setting is
0.9kgf.cm.
That's not SI.
SI would be newton-meters.
12.5 ounce-inch.
0.781 pound-inch.
http://www.onlineconversion.com/torque.htm
--
"For a successful technology, reality must take precedence
over public relations, for nature cannot be fooled."
(Richard Feynman)
Tauno Voipio
Guest
Tue Jan 31, 2012 9:45 pm
On 31.1.12 9:04 , Joerg wrote:
Quote:
John Fields wrote:
On Tue, 31 Jan 2012 07:19:24 -0800, John Larkin
jjlarkin_at_highNOTlandTHIStechnologyPART.com> wrote:
On Tue, 31 Jan 2012 09:40:59 +0000, Raveninghorde
raveninghorde_at_invalid> wrote:
I need to advise a US customer of the correct torque setting for some
4mm screws. I need to know the normal units Americans would use on
their torque drivers. Ounce inches? Pound inches? The SI setting is
0.9kgf.cm.
kgf? cm? The SI units are newtons and meters!
---
http://en.wikipedia.org/wiki/International_System_of_Units
So what's kgf?
Kilogram force - the force of the weight of a kilogram,
about 10 Newtons. It was also called a kilopond.
--
Tauno Voipio
John Larkin
Guest
Tue Jan 31, 2012 9:48 pm
On Tue, 31 Jan 2012 22:45:01 +0200, Tauno Voipio
<tauno.voipio_at_notused.fi.invalid> wrote:
Quote:
On 31.1.12 9:04 , Joerg wrote:
John Fields wrote:
On Tue, 31 Jan 2012 07:19:24 -0800, John Larkin
jjlarkin_at_highNOTlandTHIStechnologyPART.com> wrote:
On Tue, 31 Jan 2012 09:40:59 +0000, Raveninghorde
raveninghorde_at_invalid> wrote:
I need to advise a US customer of the correct torque setting for some
4mm screws. I need to know the normal units Americans would use on
their torque drivers. Ounce inches? Pound inches? The SI setting is
0.9kgf.cm.
kgf? cm? The SI units are newtons and meters!
---
http://en.wikipedia.org/wiki/International_System_of_Units
So what's kgf?
Kilogram force - the force of the weight of a kilogram,
about 10 Newtons. It was also called a kilopond.
Hey, we knew that.
**********************************
John Larkin, President
Highland Technology, Inc
jlarkin at highlandtechnology dot com
http://www.highlandtechnology.com
Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom laser controllers
Photonics and fiberoptic TTL data links
VME thermocouple, LVDT, synchro acquisition and simulation
John Larkin
Guest
Tue Jan 31, 2012 9:53 pm
On Tue, 31 Jan 2012 12:19:38 -0800, Fred Abse
<excretatauris_at_invalid.invalid> wrote:
Quote:
On Tue, 31 Jan 2012 09:40:59 +0000, Raveninghorde wrote:
I need to advise a US customer of the correct torque setting for some
4mm screws. I need to know the normal units Americans would use on
their torque drivers. Ounce inches? Pound inches? The SI setting is
0.9kgf.cm.
That's not SI.
SI would be newton-meters.
Interesting that n-m is a unit of torque and a unit of energy.
**********************************
John Larkin, President
Highland Technology, Inc
jlarkin at highlandtechnology dot com
http://www.highlandtechnology.com
Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom laser controllers
Photonics and fiberoptic TTL data links
VME thermocouple, LVDT, synchro acquisition and simulation
John S
Guest
Tue Jan 31, 2012 10:06 pm
On 1/31/2012 2:53 PM, John Larkin wrote:
Quote:
On Tue, 31 Jan 2012 12:19:38 -0800, Fred Abse
excretatauris_at_invalid.invalid> wrote:
On Tue, 31 Jan 2012 09:40:59 +0000, Raveninghorde wrote:
I need to advise a US customer of the correct torque setting for some
4mm screws. I need to know the normal units Americans would use on
their torque drivers. Ounce inches? Pound inches? The SI setting is
0.9kgf.cm.
That's not SI.
SI would be newton-meters.
Interesting that n-m is a unit of torque and a unit of energy.
But not interesting that ft-lb is as well?
Fred Abse
Guest
Tue Jan 31, 2012 10:35 pm
On Tue, 31 Jan 2012 12:53:26 -0800, John Larkin wrote:
Quote:
Interesting that n-m is a unit of torque and a unit of energy.
Newton-meters is torque, like pounds-feet.
Meter-newtons is energy, like foot-pounds.
--
"For a successful technology, reality must take precedence
over public relations, for nature cannot be fooled."
(Richard Feynman)
Phil Hobbs
Guest
Tue Jan 31, 2012 10:55 pm
Fred Abse wrote:
Quote:
On Tue, 31 Jan 2012 12:53:26 -0800, John Larkin wrote:
Interesting that n-m is a unit of torque and a unit of energy.
Newton-meters is torque, like pounds-feet.
Meter-newtons is energy, like foot-pounds.
You don't have that confusion in SI, because 1m * 1N = 1J. A number
specified in newton metres is always a torque.
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics
160 North State Road #203
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net
Joerg
Guest
Wed Feb 01, 2012 12:24 am
Tauno Voipio wrote:
Quote:
On 31.1.12 9:04 , Joerg wrote:
John Fields wrote:
On Tue, 31 Jan 2012 07:19:24 -0800, John Larkin
jjlarkin_at_highNOTlandTHIStechnologyPART.com> wrote:
On Tue, 31 Jan 2012 09:40:59 +0000, Raveninghorde
raveninghorde_at_invalid> wrote:
I need to advise a US customer of the correct torque setting for some
4mm screws. I need to know the normal units Americans would use on
their torque drivers. Ounce inches? Pound inches? The SI setting is
0.9kgf.cm.
kgf? cm? The SI units are newtons and meters!
---
http://en.wikipedia.org/wiki/International_System_of_Units
So what's kgf?
Kilogram force - the force of the weight of a kilogram,
about 10 Newtons. It was also called a kilopond.
Why does all this metric stuff keep on changing and changing? Why can't
they just keep a unit? IIRC the metric unit of pressure has had at least
three designators over the last 50 years. Atmospheres, bars, pascals,
whetever. You might not like the imperial units but a PSI has been a PSI
pretty much since the pilgrims came over.
--
Regards, Joerg
http://www.analogconsultants.com/
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