SC silent chains (SCA, SCR, SC)
SC silent chains use specially-coated round pins and unique plates to attain an ideal engagement mechanism, and might continue to keep a noise degree remarkably reduce than conventional roller chains.
SC kind silent chains might be used for high pace and huge tension transmission much like a toothed metallic belt because the plates right engage using the sprockets for driving.
SCR-04 silent chains are made with inner engaging framework for additional lowered noise level.
PS silent chain
A PS form silent chain has a construction in which a set of specially formed connecting pins and locker pins get in touch with each other even though rotating at every versatile bearing position. As a result, it generates much less heat specially in substantial speed operation and is exceptional in sturdiness. Additionally, the specially formed pins significantly reduce shock once the chain is engaged with sprockets, delivering a greater silencing impact than SC silent chains.
Sprockets
Sprockets for silent chains adopt distinctive modules in involute tooth forms for that SCA 04××, SC 25××, SC 06×× within the prior web page and PS silent chains to make sure silent higher speed 
operation. For all sizes, the sprocket tooth heads are often hardened by induction hardening or carburizing.
Silent Chain
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