Machinists' and draftsmen's handbook, containing tables, rules and formulas, with numerous examples explaining the principles of mathematics and mechanics as applied to the mechanical trades; intended as a reference book for all interested in mechanical work (1910)
Lobben, Peder, 1858- · New York, D. Van Nostrand company · leaf 414
e width of the arms at the rim will be4f inches. The thickness of the arms is half of their width and thesection is elliptic as shown at A, Figure 9. The diameter of the hub in cast iron gears is frequentlymade twice the diameter of the shaft and the length of thehub may be from 1| to 2\ times the… … The arms in small gears with cut teeth are generally larger, inproportion to the size of the teeth, than for gears with cast teeth,both because when the rim is cast solid it is so much larger, asthe depth of the teethto be cut, and will, therefore, cool offslower, and if the arms are too small in…
Mechanical engineering
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