Q:

Two involute gears in a mesh have path of approach = 29.83 mm and path of recess = 21.09 mm. The larger gear has 40 teeth and the pinion has 12 teeth. Find the ratio of the sliding to rolling velocity at the:
i) beginning of contact
ii) end of contact
iii) pitch point
r = 72 mm

A) 0.38, 0.54, 0 B) 0.54, 0.38, 0
C) 0.24, 0.63, 0 D) 0.63, 0.24, 0
 

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