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In a simple gear train, if the number of idle gears is odd, then the motion of driven gear will

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+1 vote
in Machine Kinematics by (38.0k points)
In a simple gear train, if the number of idle gears is odd, then the motion of driven gear will

(a) be same as that of driving gear

(b) be opposite as that of driving gear

(c) depend upon the number of teeth on the driving gear

(d) none of the mentioned

I had been asked this question in class test.

The origin of the question is Gear Trains topic in division Toothed Gearing & Gear Trains of Machine Kinematics

1 Answer

0 votes
by (106k points)
Right choice is (a) be same as that of driving gear

To elaborate: The speed ratio and the train value, in a simple train of gears, is independent of the size and number of intermediate gears. These intermediate gears are called idle gears, as they do not effect the speed ratio or train value of the system.

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