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  • Users: morbark
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  1. morbark

    Rotational or Moment of Inertia Help

    To all, I have a 10,000 lb mass that is about 36 inches in diameter that is going to have to be accelerated from rest to about 300 rpms in roughly 10 seconds. My question is...I guess I can figure it's "I" value (ie 1/2*m*r^2), but where does the acceleration of this body come into...
  2. morbark

    1 Large Nut vs. 8 smaller ones

    I need some help deciding between two different methods of sandwiching 8 rods (axially) between two plates. Currently, we use ONE 8 1/8" nut on the outside of the plates, that's threaded onto the shaft. I'm thinking that we could try using EIGHT 1" bolts that would go through the...
  3. morbark

    Thread Length, Engagement Various Materials

    I am intersted in information regarding the recommended thread engagement for different sized bolts (coarse thread, grade 8) in various materials...most notably ASTM A36. I'm bolting two pieces together, on an angle, so my threads will be 7/8" long using a 1/2" bolt, OR about...

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