Question

Modern gear tooth profile is given involute shape because

• A. this is a very easy curve for manufacturing
• B. sliding does not take place anywhere on meshing teeth
• C. involute is the only profile that gives conjugate action
• D. change in the centre distance does not change gear ratio

Answer 1

The correct option is D change in the centre distance does not change gear ratio

Modern gear tooth profile is given involute shape because change in the centre distance does not change gear ratio.