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#1
 
01-30-2010, 05:21 PM
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I'm using 2 of the THK SHS15V linear bearings 1 per rail for my Z axis. I'm using a simple light weight spindle but I'm working on making a mount for my Porter Cable 9690LR router. Will the SHS15V linear bearings be ok for use with the PC router? I have 2 more bearing blocks that I could add to the Z-axis if needed. How do I read this information? https://tech.thk.com/en/products/thk...th.php?id=1103 How much force is 1kN in compariable terms?  |
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#2
01-30-2010, 10:12 PM
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| 1KN = 220lbs (or so) Keep in mind that I think kN is a unit of force so my direct conversion to weight is probably wrong.... |
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#3
01-30-2010, 10:16 PM
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| 1Kn = .1Kg = .22lbs Or something like that..... |
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#4
01-30-2010, 10:33 PM
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| 224 lbs
__________________ Gerry Mach3 2010 Screenset http://home.comcast.net/~cncwoodworker/2010.html (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) |
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#5
01-30-2010, 10:38 PM
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| hmmm I'm still not sure if I should add the extra bearings to the axis or not. The PC router weight 8lb Net. I found this site http://www.convertworld.com/en/mass/Kilonewton.html I converts 1 kN to 273lb. The Dynamic rating for radial is 14.2kN and Static is 24.2kN but I'm not sure what the numbers mean. |
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#6
01-30-2010, 10:40 PM
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| It means as long as your Z axis is less than 3000 lbs, you should be OK. 
__________________ Gerry Mach3 2010 Screenset http://home.comcast.net/~cncwoodworker/2010.html (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) |
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#8
01-30-2010, 10:56 PM
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| yes.
__________________ Gerry Mach3 2010 Screenset http://home.comcast.net/~cncwoodworker/2010.html (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) |
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#9
01-30-2010, 11:06 PM
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| Is there a chart of typical cutting forces for hardwood? I guess the bit, doc, feed rate and a whole bunch of factors would contribute to calculating the "Cutting Force" Do you think I will be exceeding the 3000lb rating if I were doing wood and plastic with the Porter Cable? Thanks for the help! |
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#10
01-30-2010, 11:17 PM
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| You won't exceed 50 lbs. Those bearings can support far more than you'll ever need.
__________________ Gerry Mach3 2010 Screenset http://home.comcast.net/~cncwoodworker/2010.html (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) |
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#11
01-31-2010, 04:02 AM
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 ......but you know your bearings can take it...... |
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#12
01-31-2010, 01:05 PM
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| Well I have broken a few bits already.  I found an interesting article on the SHS bearings. http://www.fignoggle.com/components/...comparison.htm |
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