+1 vote
in Machine Kinematics by (38.0k points)
The contact ratio for gears is

(a) zero

(b) less than one

(c) greater than one

(d) infinity

The question was asked in an internship interview.

Question is from Minimum Number of Teeth on a Pinion for Involute Rack in Order to Avoid Interference in portion Toothed Gearing & Gear Trains of Machine Kinematics

1 Answer

0 votes
by (106k points)
The correct option is (c) greater than one

The explanation is: The theoretical minimum value for the contact ratio is one, that is there must always be at least one

pair of teeth in contact for continuous action.

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