gearing

noun4

1. •
   A train of toothed wheels and pinions.

   • Hoisting, derricking, slewing, and travelling are by means of independent 600-volt motors through reduction gearing. — 1956
2. •
   The ratio of a system of gears.

   • The 4×4 could climb well, as it had relatively low gearing.
3. •
   Synonym of leverage (“debt-to-equity ratio”).
4. •
   Harness; working implements.