What is Gear?
{{otheruses}} [[File:Gears animation.gif|frame|right|Intermeshing gears in motion]] [[File:Wooden teeth (1246528427).jpg|thumb|upright|Wooden cage gear in a mill]] '''Gears''' are [[machine|mechanical]] parts with cut teeth designed to fit with teeth on another part or gear so as to transmit or receive [[Force (physics)|force]] and [[motion (physics)|motion]]. Gears are also sometimes called toothed wheels or cogged wheels or cogs. The cut teeth are also sometimes called [[cog]]s. Numerous nonferrous [[alloy]]s, [[cast iron]]s, powder-metallurgy and even [[plastic]]s are used in the manufacture of gears. However [[steel]]s are most commonly used because of their high [[strength]] to weight ratio and high cost. == Related pages == *[[Transmission]] == Other websites == *[http://www.unionmillwright.com/geartrain1.html Types Of Gears] {{Webarchive|url=https://web.archive.org/web/20070315224416/http://www.unionmillwright.com/geartrain1.html |date=2007-03-15 }} *[http://www.societyofrobots.com/mechanics_gears.shtml Mathematical Tutorial for Gearing (Relating to Robotics)] *[http://www.brockeng.com/mechanism/RackNPinion.htm Animation of an Involute Rack and Pinion] *[http://www.drgears.com/gearterms/GearTermIndex.htm Gear Encyclopedia] {{Webarchive|url=https://web.archive.org/web/20080202071153/http://www.drgears.com/gearterms/GearTermIndex.htm |date=2008-02-02 }} *[http://www.unionmillwright.com/typesofgears.html Gears] {{Webarchive|url=https://web.archive.org/web/20070705212530/http://www.unionmillwright.com/typesofgears.html |date=2007-07-05 }} [[Category:Engineering]]