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2. Toothed belt - Wikipedia

   en.wikipedia.org/wiki/Toothed_belt

   They are made as flexible belts with teeth moulded onto their inner surface. The belts run over matching toothed pulleys or sprockets. [5] [6] [7] When correctly tensioned, these type of belts have no slippage, and are often used to transfer motion for indexing or timing purposes (hence their name). They are often used in lieu of chains or ...

3. Belt (mechanical) - Wikipedia

   en.wikipedia.org/wiki/Belt_(mechanical)

   Belt replacement is an obvious solution, and eventually the mandatory one (because no belt lasts forever). Often, though, before the replacement option is executed, retensioning (via pulley centerline adjustment) or dressing (with any of various coatings) may be successful to extend the belt's lifespan and postpone replacement.

4. Pulley - Wikipedia

   en.wikipedia.org/wiki/Pulley

   A pulley is a wheel on an axle or shaft enabling a taut cable or belt passing over the wheel to move and change direction, or transfer power between itself and a shaft. A sheave or pulley wheel is a pulley using an axle supported by a frame or shell ( block ) to guide a cable or exert force.

5. Idler-wheel - Wikipedia

   en.wikipedia.org/wiki/Idler-wheel

   In a typical application, power is transmitted to a drive sprocket (or drive wheel), which drives the track around its loop. On the opposite end of the vehicle, there is an idler wheel, which provides a pulley wheel of sorts. On some applications, the drive sprocket and idler wheel carry some of the weight of the vehicle, for the purposes of ...

6. Roller chain - Wikipedia

   en.wikipedia.org/wiki/Roller_chain

   Roller chain and sprocket The sketch of roller chain, Leonardo da Vinci, Codex Atlanticus. Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles.

7. Jockey wheel - Wikipedia

   en.wikipedia.org/wiki/Jockey_wheel

   A jockey wheel is a wheel-based mechanical system used for steering or guidance, either: . a guide wheel — usually operating as a pair — which is used to move, retain, locate and (usually) add tension to a chain, rope or cable which is then fed into the groove of another wheel, toothed wheel, cog or sprocket;