Question:-
One of the index plates of a milling machine dividing head has the following hole circles:
15 : 16 : 17 : 18 : 19 : 20
A gear wheel of 34 teeth has to be milled by simple indexing method. To machine each tooth. The index crank has to be rotated through
Option (A)
17 holes in the 20- hole circle
Option (B)
18 holes in the 20-holes circle
Option(C)
1 revolution and 3 holes in 17-hole circle
Option(D)
1 revolution and 2 holes in 18-hole circle
Correct Option:
(C)
Question Solution:
(40/N) = (40/34) = 1(3/17)
question-answer-faq-8404