SDP/SI offers a full range of roller chains: standard and heavy-duty series, single and double stranded, molded and Stainless Steel; subminiature roller chain, miniature roller chain, and posi-drive belts with corresponding sprockets.

Sprockets, the smallest having 6 teeth, are shaft ready in a variety of bore sizes; offered in both plastic and metal. Also available is a wide selection of ladder chains and matching sprockets.