SC silent chains (SCA, SCR, SC)
SC silent chains use specially-coated round pins and specific plates to accomplish an excellent 
engagement mechanism, and can maintain a noise level remarkably lower than traditional roller chains.
SC style silent chains is often employed for high speed and massive tension transmission just like a toothed metallic belt since the plates straight engage with the sprockets for driving.
SCR-04 silent chains are created with inner engaging framework for even further decreased noise degree.
PS silent chain
A PS form silent chain has a framework by which a set of specially formed connecting pins and locker pins speak to each other even though rotating at each flexible bearing position. As a result, it generates less heat in particular in higher pace operation and it is exceptional in sturdiness. Furthermore, the specially formed pins tremendously lessen shock once the chain is engaged with sprockets, delivering a greater silencing effect than SC silent chains.
Sprockets
Sprockets for silent chains adopt exclusive modules in involute tooth varieties for your SCA 04××, SC 25××, SC 06×× about the former page and PS silent chains to guarantee silent higher pace operation. For all sizes, the sprocket tooth heads are generally hardened by induction hardening or carburizing.
