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  • R2 Internals

    I have had a few customers ask the tooth count on the internals of the R2/R2D.

    Here is an image for anyone else that may want this info.




  • #2
    im bad it this kind of math, any what want to say what ratio that is, i dont think my 243 is right........

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    • #3
      243 is what i get

      24/8=3x24=72/8=9x27=243,,,,,,,,anyone care to add to this?

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      • #4
        Originally posted by rmdesignworks View Post
        24/8=3x24=72/8=9x27=243,,,,,,,,anyone care to add to this?
        I think I just threw up a little and burst a capillary in my eye.

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        • #5
          the ratio depends on the input pinion, but here is how to calculate the total ratio (according to my math at least):

          I have added a (:1) on the gear ratios, to make it a little bit easier to understand, as you all might remember from school, dividing by 1 does nothing.

          output-axle to idler-gear: 27:8=3,375(:1)
          idler-gear to spur-gear: 24:8=3(:1)
          that gives the spur-gear to output shaft a ratio of: 3,375x3=10(:1)

          When you decide on a pinion you simply divide 24 (the number of tooths on the spur gear) by the number of tooths on the pinion.

          Example with a 12T pinion: 24:12=2(:1)
          then you will need to multiply all the gear ratios,
          3,375x3x2=20,25(:1)

          Example with a 8T pinion: 24:8=3(:1)
          then you will need to multiply all the gear ratios,
          3,375x3x3=30,375(:1)
          Last edited by Alekoy; 03-13-2012, 02:44 AM.

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