pitch radii of the two gears, BZ and DZ, the center angle of 29°.75 can be found. ADcan be found as the hypothenuse of the triangle AZD. From AT and AD, find by trigonometry the angle ADT,which added to the center angle gives 32°.58. The complement of this angle, 57°.42 is the face angle. From Spur… … L£AO -P.H- Swe. Fig. 16. so UA and AD determine angle ADU, which subtracted from the center angle gives 26°.55 for the cutting angle. The angle VAZ is called the angle of the edge and it is equal to the center angle. The outside diameter equals pitch diameter AB, + 2 AT Cos. 29°.75. The cutter is…
Mechanical drawing · Lettering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
