red and is driven tight to draw the connected partstogether. It may hold by friction or be held by a set screw. In specifying, use the dimensions shown in the drawing. 118. A spring cotter or split pin is not used for drawing parts together, but to prevent a pulley or nutfrom coming off a shaft… … Fig. 12. line is the addendum and the part inside, the dedendum37 TOOTHED GEARS FIG. 13 119. If two cylinders revolving on parallel shafts are pressed together,one will drive the other by friction, if the resistance of the driven cylinder toturning is not too great. With great resistance, slipping…
Mechanical drawing · Lettering
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