This article is about a gear or wheel with metal teeth. For the television comedy skit, see Sprockets (television).

16T type sprocket
Do: Sprocket diameter
Dp: Pitch diameter

A sprocket is a gear or wheel with metal teeth that meshes with a chain or track. Sprockets are used in bicycles, motorcycles, cars, tanks, and other machinery. Sprockets was a fictional television talk show created by actor, writer and comedian Mike Myers for the American sketch comedy show Saturday Night Live. ... Image File history File links Download high-resolution version (952x538, 16 KB) スプロケット(16T)の概略図 Do：スプロケット外径、Dp：ピッチ円径 投稿者が作成 author ja:user:Hiro36 from japanese wiki [:ja:画像:Sprocket16. ... Image File history File links Download high-resolution version (952x538, 16 KB) スプロケット(16T)の概略図 Do：スプロケット外径、Dp：ピッチ円径 投稿者が作成 author ja:user:Hiro36 from japanese wiki [:ja:画像:Sprocket16. ... Spur gears found on a piece of farm equipment. ... A driving wheel on a steam locomotive. ... Roller chain and sprocket Roller chain or bush roller chain is the type of chain most commonly used for transmission of mechanical power on bicycles, motorcycles, and in industrial and agricultural machinery. ... U.S. M60 Patton tank. ... This article is becoming very long. ... A motorcycle or motorbike is any two-wheeled vehicle powered by an engine. ... For the magazine called automobile, see Automobile Magazine. ... Wind turbines A machine is any mechanical or organic device that transmits or modifies energy to perform or assist in the performance of tasks. ...

In the case of bicycle chains by varying the size (and therefore, the tooth count) of the sprockets on each side of the chain, modifying the overall gear ratio of the chain drive is possible. A 10-speed bicycle, by providing two different-sized driving sprockets and five different-sized driven sprockets, allows up to ten different gear ratios. The resulting lower gear ratios make the bike easier to pedal up hills while the higher gear ratios make the bike faster to pedal on flat roads. In a similar way, manually changing the sprockets on a motorcycle can change the characteristics of acceleration and top speed by modifying the final drive gear ratio. Roller chain and sprocket A bicycle chain is a chain that transfers power from the pedals to the drive-wheel of a bicycle thus propelling it. ... Gears on a piece of farm equipment, gear ratio 1:1. ... Acceleration is the time rate of change of velocity, and at any point on a velocity-time graph, it is given by the slope of the tangent to that point In physics or physical science, acceleration (symbol: a) is defined as the rate of change (or derivative with respect to... Speed is the rate of motion, or equivalently the rate of change of position, many times expressed as distance d moved per unit of time t. ... Gears on a piece of farm equipment, gear ratio 1:1. ...

In the case of tanks the engine-driven toothed-wheel transmitting motion to the tracks is known as the drive sprocket and may be positioned at the front or back of the vehicle, or in some cases, both.

Sprockets are used in the film transport mechanisms of movie projectors and movie cameras. In this case, the sprocket wheels engage film perforations in the film stock. 35 mm Kinoton movie projector in operation. ... The Arricam ST, a popular 35 mm film camera currently used on major productions. ... Film perforations, also known as perfs, are the holes placed in the film stock during manufacturing and used for transporting (via sprockets and claws) and steadying (via pin registration) the film. ... Film is a term that encompasses motion pictures as individual projects, as well as the field in general. ...

Sprockets in culture

• The fictional character George Jetson works for the Spacely Sprocket Company, a company that presumably is involved in the production of space-age sprockets. What these sprockets drive is left to the imagination of the viewer.
• In Viewtiful Joe and Viewtiful Joe: Red Hot Rumble, the producer of Movie Land is named Coordinator Sprocket.
• In the Fraggle Rock TV series Doc's dog is named Sprocket.
• Sprockets was made famous on Saturday Night Live.

The Jetsons was a prime-time American animated television series produced by Hanna-Barbera Productions, and aired from September 23, 1962 to March 3, 1963. ... Cosmo G. Spacely is a fictional character in the animated series The Jetsons, voiced by Mel Blanc. ... Viewtiful Joe is an anime series based on the video game series of the same name. ... Sprocket is a character in the popular franchise Viewtiful Joe. ... The core cast. ... Sprockets was a fictional television talk show created by actor, writer and comedian Mike Myers for the American sketch comedy show Saturday Night Live. ...

See also

• Bicycle gearing
• Cassette and freewheel