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  1. bry1

    4140-4142 Annealed or Heat Treated?

    Thanks for the reply. The shaft is .750" dia. I am looking at STRESSPROOF® - ASTM A-311 Class B - Grade C1144 for this app.
  2. bry1

    4140-4142 Annealed or Heat Treated?

    I am designing a short shaft that will see high torque loading. I need the YS to be around 90ksi. My steel supplier has these 2 options in 4140: 4140-4142 Annealed 4140-4142 Heat treated (Vague at best, I realize) I would prefer to just buy, machine, and install if possible. What is my best...
  3. bry1

    Pushing a cylinder over a lip

    I am attempting to calculate the force required to roll a large roll of paper over a lip. The roll of paper is resting stationary on the floor and is "chocked" against a raised lip that I am assuming to be square. I realize that I huge factor in this problem is the firmness of the roll but I am...

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