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How to calculate roller/wheel maximum load?

  1. Jun 22, 2012 #1
    Dear all,

    I would like to know how to calculate the maximum load that a roller/wheel can stand under set conditions. The roller/wheel works in a sliding door and it rolls along a stainless steel rail.

    I think I have to use contact stresses equations and so on but after reading several books and forums about this topic I am a bit confuse as there are a lot of different equations to use to calculate the same thing.
    Which is the most simple and more accurate equation to use?

    I leave some random data to give you an idea for what I am looking for:

    Roller/wheel material: polyacetal homopolymer, POM-H
    Young modulus: 2800MPa
    Poisson coef: 0.35
    Yield strength: 79MPa
    Dynamic friction coef: 0.3; static: 0.2

    OD (outer diameter)= 30mm
    ID (inner diameter) = 15mm
    Width= 10mm

    No T requirements.

    I am not looking for the results; I am more interested in the equation and how to calculate.

    Hope somebody can help me,
  2. jcsd
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