An obsolete type of transmission or gearbox in which the gears on the layshaft are fixed to the shaft rigidly, whereas the gears on the main shaft can slide on it by means of splines but are otherwise in permanent rotational mesh with the shaft.

What is the disadvantage of a sliding mesh transmission?

Disadvantages of Sliding Mesh Gearbox:

1 Only spur gears can be used as gears are not in constant mesh like constant mesh gearbox in which helical or herringbone gears can be used. ... 3 Less life of gear as more wear and tear of gear is caused in sliding mesh gearbox due to friction.

What is sliding gear transmission?

Definition of sliding-gear transmission

: a power-transmission system in which any given pair of gears is engaged by sliding one axially into mesh with the other.