[PSUBS-MAILIST] calculation

[Alan James via Personal_Submersibles]

Hank,can you set the bolt up vertically with a 250lbweight on it & turn it with a torque wrench?This may help too Hank.http://www.practicalmachinist.com/vb/general/jack-screws-force-157886/
Alan
      From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
 To: personal_submersibles at psubs.org 
 Sent: Tuesday, July 7, 2015 12:26 AM
 Subject: [PSUBS-MAILIST] calculation
   
Hi all,
I need help, can anyone tell me how to calculate how much force a bolt can push or pull using a torque wrench to turn the bolt. So how many foot pounds of torque does it take to rotate a bolt to  create 250 lbs push with a 1 in coarse thread bolt.  I need to make a test fixture.
Hank
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