SC silent chains (SCA, SCR, SC)
SC silent chains use specially-coated round pins and distinctive plates to realize an excellent engagement mechanism, and will maintain a noise degree remarkably decrease than conventional roller chains.
SC style silent chains is usually applied for higher velocity and huge tension transmission just like a toothed metallic belt because the plates directly engage with the sprockets for driving.
SCR-04 silent chains are intended with inner engaging structure for additional diminished noise degree.
PS silent chain
A PS form silent chain includes a structure by which a set of specially formed connecting pins and locker pins speak to each other even though rotating at each versatile bearing place. Therefore, it generates significantly less heat primarily in substantial speed operation and is exceptional in durability. In addition, the specially formed pins drastically minimize shock once the chain is engaged 
with sprockets, providing a higher silencing impact than SC silent chains.
Sprockets
Sprockets for silent chains adopt particular modules in involute tooth kinds for the SCA 04××, SC 25××, SC 06×× to the prior web page and PS silent chains to make sure silent higher velocity operation. For all sizes, the sprocket tooth heads tend to be hardened by induction hardening or carburizing.
