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Thread: Identification of the gear wheel material

  1. #1
    adriankulik92
    Guest

    Identification of the gear wheel material

    Hello,

    I am writing this post, beacuse I need some help. I've received a task from the teacher to identify the material of the gear wheel, but I got only to use caliper. After some time, I have idea, that I should calculate bending strength and then look for the bending strength values in the different tables with assigned materials. Is that way of thinking good? I've found a lot of different formulas for bending stress / bending strength and I am not sure which one is correct, maybe you have experience with this kind of calculations?

    Important data:
    - gear wheel is made of polymer
    - assumptions: max rpm = 3500, P = 140 kW
    - module of gear wheel: 2,5
    - number of teeth: 26
    - pitch diameter: 64
    The gear wheel is produced according to the standards.

    Regards

  2. #2
    Lead Engineer Cake of Doom's Avatar
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    Aug 2012
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    You're on the right track with the process of elimination approach.

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