Machine drawing; a text and problem book for technical students and draftsmen (1921)
Svensen, Carl L. (Carl Lars), 1884- · New York, D. Van Nostrand company · leaf 107
.—Special shafts have to be forged of steel suitablefor the particular purpose. Shafts for machine tools and power machin-ery are made with varying diameters and must be completely dimensionedas indicated in Fig. 126. 139. To Compute the Diameter of a Shaft.—The diameter of a shaft fora given… … SHAFTING AND COUPLINGS 97 twisting tendency is called the twisting moment and is equal to Mt = PRin which P = pounds and R = inches. The moment of the stress withinthe shaft must equal this twisting moment, or r in which S = shearing stress in pounds per square inch, r = radius ofshaft in inches,…
Machinery
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