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  • Users: Porknar
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  1. Porknar

    Checking Concentricity and TIR

    A little help here. We have an old print for a shaft that reads "Diameters to be concentric within .001 TIR" Now these diameters are differnet sizes ranging from 11" to 19.5" over a shaft that is 66.5" long. Can anyone offer a defintion and an inspection method. We are having a dispute on how...
  2. Porknar

    Help with gear size and ratio

    I have a home project that I need some help with. Is there away to figure out the gear size for something like this? gear input: 2.29:1; gearbox ratio: 115:1Pulls 32 FPM and 1800 lbs. single load; I am not sure home figure out the size and number of gears. I would like to try to run this from...

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