SC silent chains (SCA, SCR, SC)
SC silent chains use specially-coated round pins and particular plates to attain an excellent engagement mechanism, and can continue to keep a noise degree remarkably reduce than standard roller chains.
SC form silent chains may be employed for large pace and big tension transmission similar to a toothed metallic belt because the plates straight engage with all the sprockets for driving.
SCR-04 silent chains are built with inner engaging construction for even further decreased noise degree.
PS silent chain
A PS kind silent chain includes a structure by which a set of specially formed connecting pins and locker pins get in touch with every single other although rotating at just about every flexible bearing 
place. Consequently, it generates significantly less heat primarily in higher pace operation and it is great in sturdiness. Moreover, the specially formed pins significantly cut down shock once the chain is engaged with sprockets, offering a larger silencing effect than SC silent chains.
Sprockets
Sprockets for silent chains adopt special modules in involute tooth varieties to the SCA 04××, SC 25××, SC 06×× within the earlier web page and PS silent chains to make certain silent higher pace operation. For all sizes, the sprocket tooth heads are frequently hardened by induction hardening or carburizing.
