Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

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

Search results for query: *

  1. AxeMan

    Planetary Gear Torque Output & Distribution

    English Muffin, Your last post just earned a star from me because it finally pulled the concept of power distribution into focus for me. Thanks again for your help. I must confess that although I liked Diamond Jim's idea, I was not the person who gave his post a star. Someone else must have...
  2. AxeMan

    Planetary Gear Torque Output & Distribution

    English Muffin, Out of the loop?! Says who? You have been most helpful to me. I was planning on using 18 teeth for the sun & planet gears, 54 for the ring. This unit is going to see very little action(2 output revolutions per day would be a lot), so wear is not even an issue. Diamond Jim's...
  3. AxeMan

    Planetary Gear Torque Output & Distribution

    You're not slow on the uptake, it's my ignorance on this issue that's causing the communication slowdown. I can't thank you enough for taking the time to offer your help. Anyway, if I understand you correctly, all the teeth that are engaged at any one moment are up against the same tangential...
  4. AxeMan

    Shear Pin Calculation - Yield Stress Values

    As stated in the above responses, many factors can effect actual shear strength, so it is impossible to give shear stress factors with any real accuracy. You may want to approach the problem from another direction. Calculate the load your paddle is going to put on the shear pin and select a...
  5. AxeMan

    Planetary Gear Torque Output & Distribution

    Thanks for the reply. I was aware of some of the issues with actually achieving equal load sharing. I hadn't thought about the reverse bending issue. Actually, since this unit will be bi-directional, all the gears will experience reverse bending, although the planet gears will experience...
  6. AxeMan

    Planetary Gear Torque Output & Distribution

    Thanks for the reply. I am familiar with the Lewis equation. If the sun & planet gears are exactly the same, which gear(s) am I to assume is/are the weekest in the train and why? I'm working with a 4:1 ratio. I realize the sun gear will have 3 points of contact (3 planet gears) and the...
  7. AxeMan

    Planetary Gear Torque Output & Distribution

    I am admittedly a rookie when it comes to planetary gear trains, so bear with me. I am unsure how to determine the strength of a given planetary gear train. I don't understand the dynamics of power distribution in them. Determining the strength of a given gear is one thing, but I don't know...

Part and Inventory Search

Back
Top