Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by philjc

  1. philjc

    sizing a shear key

    Can anyone tell me what material allowable to use when sizing a shear key. We need to check bearing on shaft and sprocket, bearing on key, and shear on key. Do we use Fsu/2? Fbry, a percentage of Ftu? No reference I have is real clear on this. The key length must be sized not to extend out of...
  2. philjc

    Force it takes to flatten dough?

    I am doing an experiment on how much force it would take to flatten a ball of dough into a specific diameter tortilla. Maybe I can relate ounces of mixed dough to diameter tortilla? The dough will be mixed to a certain consistency then rolled into a ball weighing a certain amount of ounces and...
  3. philjc

    setting up an electrical system

    I need to run an electrical system for a small machine. I will be running off of 110 mainly but there is an option for the customer to use 220 if they choose. Half of the power will be used to run a motor and half will be used to heat and element that will be approx 400-500 degrees. I have sized...
  4. philjc

    Fastener allowables and Shear-out formula

    koopas monel example: the statement should of said, the material bearing allowable will be higher than the fast'r shear allowable of the fast'r, making the joint shear critical. Cres 301 mechanical properties are higher. For fasteners not found in MIL-HDBK-5, similarities can be drawn and...
  5. philjc

    Fastener allowables and Shear-out formula

    Sorry, Yes it is the joint allowable you find in mil handbk. When finding joint allowables of the fast'r use the less of the bearing allowable and shearout allowable. Fsu of the material will not very with short edge margin. What varies or gets smaller is your area around the hole making your...
  6. philjc

    Sizing an electric motor

    Thank you Desertfox, I think that will get me going. Any good reference website/reading material on designing mechanisms (drive design, gears, cranks, chains, sprockets)that you can tell me? thanks
  7. philjc

    Fastener allowables and Shear-out formula

    Check capability of a short ed hole (sed)! We usually calculate what the fast'r is good for in the apparent material your analyzing (ref. Fsu of fast'r in mil handbook, thickness and material type of the metal the sed hole is in, whether the fast'r is csk or not csk, the size of the fast'r)...
  8. philjc

    Sizing an electric motor

    I am a structures guy and need help sizing an electric motor for a project I am working on. Things I know: torque required, 110 volts (standard) and 220 (optional), direction is ccw or cw, it will drive a chain or belt, and it will run for 1-6 hrs a day. Do not know: HZ, Amps or anything about...

Part and Inventory Search