Gears

Gears are precision-engineered mechanical components featuring teeth cut into their circumference that engage with corresponding teeth on mating gears to transfer rotational motion and power between shafts. They function as fundamental elements in gearboxes and transmission systems, enabling speed reduction, torque multiplication, direction reversal, and synchronization of rotational axes through controlled meshing. Their design ensures efficient power transmission with minimal energy loss while maintaining precise angular relationships between connected components.

Gears operate on the principle of positive engagement, where interlocking teeth transmit rotational force from a driving gear to a driven gear. As teeth mesh, they maintain continuous contact along their profiles, converting input torque and speed into modified output characteristics based on gear ratio (determined by tooth count). This mechanical interaction prevents slippage, ensures synchronized motion, and allows for predictable power transfer through direct physical contact between mating surfaces.