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I want to replace a cylindrical pulley, so I came across a component called a smooth belt. enter image description here

Now this thing came with many differenent variations, from 2.00" up to 8.00". Since I don't know which one to get, what is this varying parameter? What does this value imply?

Also, the 1/4" refers to the diameter of the cylinder of the plastic, is that correct?

EDIT: The picture here is just a picture I found in an online store. I measured the parameters of mine that I want to replace. The thickness of the plastic is 1.5mm (this means 1/16 of an inch) and the diameter of the circle is 4.5cm.

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  • $\begingroup$ If that picture is to scale, I can see that the radius is 8 times the diameter: 2" $\endgroup$
    – david
    Sep 24, 2023 at 7:59

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Do you have a link to the manufacturer? You are correct about the quarter inch (gauge). If I were to guess the varying value is the length of the belt measured as internal diameter. Also remember force is equal to K*dx, so the more stretch on the belt the larger the force.

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  • $\begingroup$ I edited the question with the specific measurements of the one that I am looking for. No, i don't know manufacturer. I just want to find a replacement. $\endgroup$ Sep 25, 2023 at 13:58

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