Chain, series of links, usually of metal, joined with each other to form a flexible connector for various purposes, such as holding, pulling, hoisting, hauling, conveying, and transmitting power.
The simplest and oldest kind of chain may be the coil chain, which is manufactured out of straight metal bars that are bent to an oval shape, looped together, and welded shut. These bars were traditionally made of wrought iron, but chains manufactured from steel have gained favour recently. This type of chain was typically used in slings, cranes, and power shovels, but it provides partly been changed by cable or wire rope. On some hoists, coil chains operate on special pulleys with recesses in which the chain fits. A variant of the coil chain is the stud-link chain, each of whose links includes a bar or stud across its inside width. These studs add weight, keep carefully the chain from fouling or kinking, and assist in preventing deformation; stud-hyperlink chains are preferred for make use of as anchor and cable chains on ships.
A silent chain is essentially an assemblage of gear racks, each with two teeth, pivotally connected to form a closed chain. The links are pin-connected, smooth steel plates with straight tooth. Silent chains are quieter than roller chains, can operate at higher speeds, and may transmit more load for the same width.
Silent chain is composed of stacked rows of flat, tooth shaped traveling links that mesh with sprockets having compatible tooth spaces. Silent chains contain guide links to maintain appropriate monitoring on sprockets. Spacers and washers may also present in some silent chain constructions. The silent chain is certainly held collectively by riveted pins located in each chain joint. All silent chains possess these simple features but there are many different styles, styles, and configurations.
Silent chain is utilized in both power transmission and conveying applications. It is necessary to identify the application when contemplating purchasing silent chain. Silent chain is usually available center guided, side guided or with two center guides. It is available with single pin or two pin joints. It is important to note the pitch and width when determining silent chain, as well as the build type. Silent chains are used in a variety of demanding commercial and automotive applications, particularly those industries needing high speeds and tranquil operation.
Silent chain, or inverted-tooth chain, is a kind of chain with teeth formed upon its links to activate with the teeth in the sprockets. Silent chains drives are not truly silent. The links in a silent chain drive, however, engage with the sprocket tooth with little effect or sliding, and because of this a silent chain produces less vibrations and sound than various other chains. The quantity of noise produced by a silent chain drive depends of many factors including sprocket size, swiftness, lubrication, load, and drive support. A web link belt silent chain contains removable links joined by rivets or interlocking tabs. These chains offer the 
advantage of set up without dismantling drive elements, reducing inventory, and increasing temperature ranges.
Pitch
A silent chain’s pitch is normally expressed in in .; the most typical are .375 in, .500 in, .750 in, 1.000 in, 1.500 in, and 2.000 in. Chain pitch could be determined by measuring distance across the consecutive pin heads and dividing by three. Width is also used to express the size of a silent chain which includes: width over heads (the maximum chain width, measured across the ‘headed’ pins), width over links (the measurement across link plates, excluding pin heads or washers), width between manuals (measured between guide plates; used only with side guideline silent chains), and nominal width (not a measurement, but an approximation of chain sized for catalogs).
Applications
Silent chain can be utilized in a variety of power transmission and conveying applications. When found in power transmission applications, silent chains can easily transmit loads at speeds more than other types of chains and belts. In addition, silent chain drives transmit power more effectively and with less noise and vibration. Silent chains are also used in conveying applications because their conveying surface area is long lasting, resistant to warmth, is flat, and nonslip. Silent chains from different manufactures are different in design; parts should not be used interchangeably.