The mechanical engineer's pocket-book. A reference-book of rules, tables, data, and formulæ, for the use of engineers, mechanics, and students (1910)
Kent, William, 1851-1918 · New York, J. Wiley & sons · leaf 1182
oth above the pitch line; second, thededendum the depth below the pitch-line, which is an amount equal tothe addendum of the mating gear. The depth of the space is usuallygiven a little clearance to allow for inaccuracies of workmanship, eS Referring11?Fig617i, pi, pi are the pitch-lines, al the… … Fig, 171. Circular pitch = diam. of pitch-circle in inches circular pitchdiam.X 3.1416 3.1416 No. of teeth diametral pitch diam. Some writers use the term diametral pitch to mean No of teeth = circular pitch ^ but tfae first definition js the more common and the more3.1416 1134 GEARING. convenient.…
Mechanical engineering
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