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Nov 16, 2007, 11:31 AM
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#1
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Spring rate conversions kg/mm to lbs/in
I was looking through the spring rate chart for various vendors, and thought this might be useful.
1lb = 0.45359237kg
1in = 25.4mm
.45359237 / 25.4 = .017857967322834645669291338582677
So now we know that 1lb/in = .017857967322834645669291338582677.
So if we want a spring that's roughly 560lbs; we'd multiply both sides by 560, and come up with roughly a 10k spring rate. Alternatively if you already know the kg/mm rate and want to find out what the lbs/in is, just divide the spring rate by that reaaally long factoral above (the .0178...).
But just in case you all didn't want to go through all that, here's a chart:
kg/mm to lbs/in
-----------------------------
16 = 896
15 = 840
14 = 784
13 = 728
12 = 672
11 = 616
10 = 560
9.0 = 504
8.5 = 476
8.0 = 448
7.5 = 420
7.0 = 392
6.5 = 364
6.0 = 336
5.5 = 308
5.0 = 280
4.5 = 252
4.0 = 224
3.0 = 168
2.0 = 112
Last edited by Vankuen; Nov 16, 2007 at 11:37 AM.
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Nov 16, 2007, 11:41 AM
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#2
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This is handy, you'll have to check the author's math:
http://www.hraefn.net/projects/spring_rates.php
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Dec 10, 2007, 08:10 PM
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#3
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Dec 10, 2007, 08:45 PM
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#4
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Smartass! ; )
If I'd had known it was that easy I wouldn't have done the calculations! But at least it's nice knowing how the calculation is done...
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Feb 18, 2009, 09:16 AM
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#5
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lol gdd to knw...
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Mar 21, 2009, 10:36 AM
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#6
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Excellent post!
Murph
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Mar 21, 2009, 10:41 AM
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Quote:
Originally Posted by donour
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pwnd! 
google ftw 
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Tags
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10k, 3kgmm, 85, chart, conversion, conversions, kg, kgmm, lbs, lbsin, mm, por, rate, rates, spring  |
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