Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 156
tity which has no name but which is analogous to, and, in the calculations, takes the place of,the diameter in spur gears. The author has shown {Amer. Mach., Nov. 28, 1901. Van Nost-rands Science Series No. 116) that for45-deg. heUcal gears:li 1.4142C {a) 1 + r\ri in which /i = length of normal… … Fig. I.—:Helical and worm gears.The author has also shown (same references) that for 45 deg. gears: 7t (6) di- .7071 in which (ii = diameter of driver, ins. The use of these formulas is best shown by an example: Let and 15 ,C=4 — = 4.468 ms.32riri Inserting these values in (u) we have: ^1…
Machine design
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