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  • Users: trallee
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  1. trallee

    Circular to chordal tooth thickness.

    What is the equation for converting the circular tooth thickness to chordal tooth thickness. I know it is something simple but I cannot find it or remember what it is. Thanks for any help. Troy
  2. trallee

    Helical grease groove

    I work in an industry where plain bearings (usually bronze)for low speed high stress applications are used. We have played with both straight grease grooves and helical grease grooves and really cannot see any difference. The straight grooves are much easier to manufacture and therefore more...
  3. trallee

    Involutometry & Trigonometry

    I would like to get a copy of the book Involutometry & Trigonometry by Werner F. Vogel. Does anyone have this book and would like to sell it?
  4. trallee

    Torque holding ability of a press fit bushing

    After researching a while on the internet, thru Mark's, and Roark's I thought I would ask here if my logic is correct. I need to know the torque holding ability of a bushing press fitted into a bore. I can calculate the implied force from the equation Deflection = (P*L)/(A*E), where deflection...
  5. trallee

    Involute Spline

    I was wondering if anyone could tell me the equation to calculate the circular tooth thickness of an involute spline. The Machinery's Handbook has everything but that.
  6. trallee

    Pin Loaded Holes

    Does anyone know of any good reference materials for designing pin loaded holes?
  7. trallee

    Stress Concentration Factors for Threads

    I am designing a drive line that must be threaded. I have a size constraint (maximum)on the diameter that must be used. I have tried to use V-Threads but when I add the stress concentration factor of 2.8 to the calculation my stress is well above allowable. I am looking for stress concentration...
  8. trallee

    Mining Equipment

    I work on mining equipmet daily and it is a very interesting field. I see fatigue failures that go beyond any textbook could ever tell. If anyone would like to share failures I would be more than interested to share my experiences.
  9. trallee

    Tapped Holes

    I have a question I am searching an answer for. We make large weldments and are constantly tapping holes for bolts. We calculate the max torque value based on the plate because that is normally the weak link. For lack of better information we use 80% of yield strength for proof stress of the...

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