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Unformatted text preview: ters and the center-to-center distance. With the belt we could: Use the same A-3 belt and double its width; Change the belt to A-5 which has a thickness 0.25 in rather than 2(0 . 13) = . 26 in, and an increased F a ; Double the thickness and double tabulated F a which is based on table thickness. The object of the problem is to reveal where the non-proportionalities occur and the nature of scaling a at belt drive. We will utilize the third alternative, choosing anA-3 polyamide belt of double thickness, assuming it is available. We will also remember to double the tabulated F a from 100 lbf/in to 200 lbf/in....
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- Fall '11