Differentiate between sliding mesh and constant mesh gear box.

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written 4.6 years ago by

Parameter	Sliding Mesh Gear Box	Constant Mesh Gear Box
Construction	It consists of spur gear	It consists of helical gear
	The main shaft gears are not in mesh constantly with the counter shaft gears,which can slide and mesh.	All the gears on the main shaft are in constant mesh with the corresponding gears on the counter shaft
	Selector fork unit is used in this gearbox for engaging the gear	Dog clutch unit is used in this gear box for engaging the gears
Torque Transmission	Low	High
Size	The size of the gearbox is large	The size of the gearbox is small as compare to sliding mesh gearbox.
Application	It is the oldest type of gearbox used in motor vehicles.	Constant mesh gearbox has been used in 2&3-wheelers.

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