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  1. fuzion

    Calculating Shear Pin dia. with determined load & constant cyclic load

    Hi rb, I can go up to .200 in diameter of the shear pin. For the breaking load at the input, of 170lbs static, the pin would be approx .12inches. But for fatigue, MMPDS only lists the fatigue for H1000. Would you just ratio the H1150 Ftu to H1000 Ftu and use that to get the percentage in...
  2. fuzion

    Calculating Shear Pin dia. with determined load & constant cyclic load

    the pin is pressed fit into one part, and there is a .0003 slip into the mating part. The mating part is a steel bushing.
  3. fuzion

    Calculating Shear Pin dia. with determined load & constant cyclic load

    Hi first thanks for everyones responses. 5 million cycles under normal operating load which is about 25 lbs at the input.
  4. fuzion

    Calculating Shear Pin dia. with determined load & constant cyclic load

    Hi, I am in a dilemma. I am trying to design a shear pin that would break (shear) with a predetermined load applied. However this shear pin also is seeing a cyclic load. I know that cyclic loading fatigues a shear pin and may cause premature shearing. This shear pin transmits a torque to a...
  5. fuzion

    Hardcoat Anodize 7075 Aluminum on Ampco 45

    it is a low speed application less than 20 RPMs. It would be teflon impregnanted hardcoat. thanks again!
  6. fuzion

    Hardcoat Anodize 7075 Aluminum on Ampco 45

    I have an ampco bushing, with a hardcoat anodized 7075 aluminum arm which rotates on the bushing. thanks for everyones responses
  7. fuzion

    Hardcoat Anodize 7075 Aluminum on Ampco 45

    Has anyone tried this? Any negative effect of using this combination?

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