Gear
From Simple English Wikipedia, the free encyclopedia
For other uses, see Gear (disambiguation).
Intermeshing gears in motion
Gears are mechanical parts with cut teeth designed to fit with teeth on another part so as to transmit or receive force and motion. Gears are also sometimes call toothed wheels or cogged wheels or cogs. The cut teeth are also sometimes called cogs.
[edit] Gear materials
Numerous nonferrous alloys, cast irons, powder-metallurgy and even plastics are used in the manufacture of gears. However steels are most commonly used because of their high strength to weight ratio and low cost.
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