Of course, shaft drive does away with all that inconvenience but then you pay a different sort of penalty in the form of ...

with the teeth of another gear, belt or chain. When two or more gears are ... When you pull the rope, the pulley helps you lift heavy objects more easily because it spreads out the effort needed ...

You can’t start a small four-stroke engine in reverse, so their simple chain drive transmissions lack ... V-belt wears under the influence of the pulley when not engaged, but as an alternative ...