atio of thepair of bevel gears to be made. The pitch diametfer of abevel gear is always measured at the large end. Thepitch of the teeth is also measured and calculated forthis end. Having determined on the size of the gear,set the dividers to the pitch radius of the gear and prickoff this,… … Fig. 62.circle, the center of which is obtained by producing theline that forms the end of the teeth back until it inter-sects the center line of the gear at H; the small end istreated in the same way, which locates the center for ^^ PATTERNS FOR CAST GEARS 123 that end at I. The dimensions of…
Patternmaking
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