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pulley / mixer calculation

pulley / mixer calculation

pulley / mixer calculation

(OP)
I am missing somthing simple here I think.

here is my pulley belt set up- 5" pulley on motor @1725 RPM drives a pulley of "x" diameter.  Further on teh same sfat is another disc of 5.5". I know I want teh other disc rotating at 1916 RPM.  I need to figure out my unknown driven pulley diameter that woudl allow me to get teh correct spped for teh 5.5" disc.  ANy help?

As I said i think i am missing something here, I kno wteh eq. D1V1=D2V2- this could be used if i knew the Diameter of the driven pulley to calc the RPM of it.  After trying to go backwards from the 5.5" disc i need at 1916 RPM- before trying any calcs It looked as if i woudl be able to use two equations as i have 2 unknowns- teh driven pulley diameter and its RPM.

Ideas?

RE: pulley / mixer calculation

(OP)
sorry for my mad typing.  The 3rd disc is on teh same shaft as teh driven pulley, just to clear that up.

RE: pulley / mixer calculation

You have one unknown, the diameter of the driven pulley.  The 5.5" disc turns at the same speed as the unknown driven pulley.

Driven pulley dia = 5 * 1725/1916 = 4.5

Ted

RE: pulley / mixer calculation

(OP)
Haha, duh! I need to think back to the basics- thanks a lot Ted.

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