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Dumore pulley size(s)

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  • Dumore pulley size(s)

    Any Dumore grinder (44 series I think) owners out there who could provide the
    pulley wheel diameters. I have a #4 (2 1/4") and a #3 (1.556). According to what is legible on the chart on the motor I think I need a #2 to reduce the rpms to around 6000.

  • #2
    To get 6600RPM at the spindle, you need #2 (1 1/8") on the motor, and #4 (2 1/8) on the spindle.

    PM sent, if you want the page from the Dumore catalog.

    Dave J.

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    • #3
      Here's the label on mine. Having the full set of five comes in handy. Especially to do small ID grinding. I think I made three for mine. Pretty simple to make if you have a radius/ball cutter for your lathe. I'll have to look but I may have some 3/4" aluminum plate stock left. I just used a hole saw to blank out the sizes I needed and cut them on the lathe.

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      • #4
        Dave and Ken Thanks for the info. I updated my email address. After cetlink was bought by navacore I updated about a thousand of them, should have done 1001.

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        • #5
          Looks like you have the info, but its not in the posts, so in case anyone else needs it, mine measure as follows, at largest part of crown. (inches)

          1 .85
          2 1.125
          3 1.56
          4 2.125
          5 3
          1601

          Keep eye on ball.
          Hashim Khan

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