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 ________.

This question was previously asked in
NHPC JE Mechanical 6 April 2022 (Shift 1) Official Paper
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  1. herringbone gear
  2. crossed helical gear
  3. spiral bevel gear
  4. helical spur gear

Answer (Detailed Solution Below)

Option 1 : herringbone gear
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NHPC & THDC JE Civil Full Test 1
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Detailed Solution

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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.

 

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