Babendreier, Arthur O. [from old catalog], Maryland institute for the promotion of mechanic arts and design, Baltimore. [from old catalog] · Baltimore, Md., The Maryland institute for the promotion of mechanic arts and design · leaf 47
e in roller chain sprocket wheels lies halfway between the top and bottom of the tooth. The diameter of the rim of thesprocket wheel (see Fig. 16c)at the bottom of the toothis called the base diameterand is equal to the pitch di-- ameter minus the diameter d,of the roller. The outside di-ameter… … P.D.- n 2n n and the pitch diameter of wheel = sin X or sin 180° n GEAR WHEELS—PITCH There are two kindsof pitch in gear wheels—circular pitch (C.P.)(•see Fig. 17), the curvedistance from center ofone tooth to the centerof the next tooth meas-ured on the pitch circle,and diametral pitch(D.P.) which…
Mechanics
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