plane of the end of thecylinder. The tooth angle as specified in Fig. 16 is more convenient for the workman, as itis the amount necessary to set over the head of the milling machine for cutting the teeth. 147. It remains to determine the number of teeth for which the cutter isselected. It will not… … D£f£LOP£0 Pitch SurfacesFig. 17. It can be proved easily by geometry, that Ypresults given in Fig. 16. Sin^e and Y„ = Cos^ Q The student should verify the 55 148. The pitch diameter is always given on a gear although it may be of no use to the machinist. Itis necessarj, however, in deteniiining the…
Mechanical drawing · Lettering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
