Twogear

Twogear is a term that may refer to different concepts in engineering and commerce. In mechanical engineering, it can denote a simple pair of interlocking gears used to transmit torque between shafts, or it can describe a compact dual-gear transmission designed to provide two selectable gear ratios. In branding and popular media, “Twogear” has been used as a name for products or companies in various markets, without implying a single, universal standard.

In a basic two-gear arrangement, two gears with different tooth counts mesh to produce a fixed gear ratio equal to the ratio of teeth. When used as a compound or multi-stage train, additional gears can create more complex ratios. Key design considerations include gear pitch, material, lubrication, alignment, and efficiency losses due to meshing friction. Common applications include small mechanical drives, timing devices, and compact gear boxes where a limited number of speeds are sufficient.

As a brand name, Twogear has appeared in different regions for products related to machinery, tools, or accessories, with no single global trademark. In intellectual property terms, the status of any Twogear mark depends on jurisdiction and existing registrations.

See also: spur gear, gear train, gear ratio, dual-gear transmission, timing gears.