The backlash between gears is expressed in terms of
A)Difference between addendum and dedendum
B)The difference between PCD of two gears
C)The actual gear width on pitch circle minus the standard gear width for given number of teeth on gear
D)Clearance between faces of the mating gears
E)None of the above

Question

Quizplus · Accepted Answer

Backlash in gears is the clearance or lost motion in a mechanism caused by gaps between the mating parts. It is the amount of clearance between mated gear teeth, which is necessary for the smooth operation of gears, allowing for thermal expansion, lubrication, and preventing gear teeth from binding. Therefore, it is best described as the clearance between the faces of the mating gears.

The Backlash Between Gears Is Expressed in Terms of