What is the ratio of the number of teeth to the number of revolutions of meshing gears?

What is the inverse ratio between the number of teeth and the number of revolutions? The fewer teeth, the higher the number of revolutions.

Expansion: Two meshing gears have the same number of teeth when rotating. 2.5 times the number of pinion teeth is equal to the number of pinion teeth. So the big gear turns 100 and the small gear turns 250. Gear is a mechanical element with teeth on the rim that can continuously mesh to transmit motion and power. Gear is a mechanical part with teeth that can mesh with each other. When a straight line makes pure rolling along a circle, the trajectory of any point on the straight line is called the involute of the circle, the circle is called the base circle of the involute, and the straight line is called the generatrix. A gear with an involute tooth profile is called an involute gear. Involute gears can maintain a constant transmission ratio.