TSI Sprocket has the right ball bearing idler sprocket to maintain the chain tension your roller chain drive requires for optimal performance. Its heavy steel construction with hardened teeth can handle the applications that are critical to your business. Sprockets / wheels form an integral part of the chain transmission and are therefore one of the most important factors related to its proper function and long service life. TSI delivers sprockets / wheels with all its chains. We offer sprockets / wheels with teeth in accordance with the ČSN/DIN/ISO/ANSI standards as well as sprockets with optimized teeth shapes. The sprockets/ wheels are manufactured from high quality materials and can be supplied without heat treatment, heat-treated or with induction hardened teeth upon