If in a double helical gear, the right and left inclinations meet at a common apex and there is no groove in between, the gear is known as ________.

Question

Question

This question was previously asked in

NHPC JE Mechanical 6 April 2022 (Shift 1) Official Paper

Answer 1

Explanation:

Herringbone Gear:

If the left and right inclinations of a double helical gear meet at a common apex and there is no groove in between, the gear is known as herringbone gear.
Axial thrust gets canceled due to the opposite hands and these gears can be used at high speeds with less noise.

F1 Ashik Madhu 17.09.20 D8