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2. Spur gear - Wikipedia

   en.wikipedia.org/wiki/Spur_gear

   Spur gear. Spur gears or straight-cut gears are the simplest type of gear. They consist of a cylinder or disk with teeth projecting radially. Viewing the gear at 90 degrees from the shaft length (side on) the tooth faces are straight and aligned parallel to the axis of rotation. Looking down the length of the shaft, a tooth's cross section is ...

3. List of gear nomenclature - Wikipedia

   en.wikipedia.org/wiki/List_of_gear_nomenclature

   A face gear set typically consists of a disk-shaped gear, grooved on at least one face, in combination with a spur, helical, or conical pinion. A face gear has a planar pitch surface and a planar root surface, both of which are perpendicular to the axis of rotation. [ 1 ]

4. Involute gear - Wikipedia

   en.wikipedia.org/wiki/Involute_gear

   The involute gear profile, sometimes credited to Leonhard Euler, [1] was a fundamental advance in machine design, since unlike with other gear systems, the tooth profile of an involute gear depends only on the number of teeth on the gear, pressure angle, and pitch. That is, a gear's profile does not depend on the gear it mates with.

5. Gear - Wikipedia

   en.wikipedia.org/wiki/Gear

   Two intermeshing spur gears rotating at different velocity due to differing gear ratio. A gear [1] [2] or gearwheel [3] [4] [5] is a rotating machine part typically used to transmit rotational motion and/or torque by means of a series of teeth that engage with compatible teeth of another gear or other part.

6. Category:Gears - Wikipedia

   en.wikipedia.org/wiki/Category:Gears

   Pages in category "Gears" The following 59 pages are in this category, out of 59 total. ... Spur gear; Starter ring gear; Strain wave gearing; Sub transmission;

7. Manual transmission - Wikipedia

   en.wikipedia.org/wiki/Manual_transmission

   Floor-mounted gear stick in a Mazda Protege passenger car Common shift pattern for a 5-speed transmission. In most vehicles with a manual transmission, the driver selects gears by manipulating a lever called a gear stick (also called a gearshift, gear lever or shifter). In most automobiles, the gear stick is located on the floor between the ...