Compare constant mesh gear box with synchromesh gear box

Compare constant mesh gear box with synchromesh gear box
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1 Answer

Answer :

Sr No.
constant mesh gear box 
synchromesh gear box 
1.
It has need of double declutching .
No need of double declutching as in case of constant mesh gearbox.
2. Problem in engagement of higher gears due to constant mesh device
Smooth engagement of higher gears due to synchromesh device. 
3. It is more noisy. 
It is less noisy as helical gears are used.
4. It has more vibration.
It has less vibration.
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