SC silent chains (SCA, SCR, SC)
SC silent chains use specially-coated round pins and exclusive plates to accomplish an ideal engagement mechanism, and might keep a noise degree remarkably lower than standard roller chains.
SC style silent chains could be applied for large velocity and massive tension transmission similar to a toothed metallic belt because the plates directly engage together with the sprockets for driving.
SCR-04 silent chains are developed with inner engaging construction for even further diminished noise degree.
PS silent chain
A PS type silent chain features a 
construction in which a set of specially formed connecting pins and locker pins contact every single other though rotating at every flexible bearing position. Consequently, it generates significantly less heat in particular in large velocity operation and is exceptional in sturdiness. Furthermore, the specially formed pins drastically lessen shock once the chain is engaged with sprockets, delivering a larger silencing impact than SC silent chains.
Sprockets
Sprockets for silent chains adopt special modules in involute tooth kinds for the SCA 04××, SC 25××, SC 06×× around the past web page and PS silent chains to ensure silent substantial pace operation. For all sizes, the sprocket tooth heads tend to be hardened by induction hardening or carburizing.
