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 128
f teeth,Dp = pitch diameter,Do = outside diameter, — = addendum, 1 + .157P 2 + .157 = dedendum. = depth of cut. p = B,-l N = DpXP p = N Dp = Do- 2P N = PDo-2 Pc = ITP D„-^ + I Pc i^O p Pc = TcDp N Do = Dp + 2P 163. Spur Gear Drawing.—It is not necessary to draw the tooth GEARS AND CAMS 117 outline… … 1^ ?^ ^s 2Z2. ^ ^ 1^ _1 ■^ P 60 Teeth15 Pitch D/am.Depth of cot 539 ■2i CAST /RON GEARScafe ■ 6 = I Ft. Fig. 204. A Spur Gear Drawing. the teeth are not shown and are not sectioned. Root diameter is repre-sented by a dash line, the pitch diameter by a dot and dash line, and theoutside diameter by a…
Machinery
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