Tsubaki Lambda self-lubricating RS roller chain is ideal for environments where it is difficult, impossible or unwanted to lubricate chains. The Lambda chain is a self-lubricating chain whose buses are impregnated with lubricant. Therefore, the chain does not need to be lubricated. Because there is no lubricant used, the quantity of chemical waste is reduced. Also the risk of product contamination is eliminated. In addition, the Tsubaki Lambda chain contributes to a clean working environment.