Leverage
The gear train below
is a speed multiplier. The gear ratio is 8/18 or 4/9. For every 4 turns
of the driver the follower makes 9 complete revolutions.
The gear
train above is a force multiplier. The gear ratio is 18/8 or 9/4. For
every 9 turns of the driver the follower makes 4 complete revolutions.
This is an example of a force multiplier.