Caterpillar drive chain is used in overhead conveyor systems.  TYC caterpillar drive chain is constructed of a size 160 roller chain with forged dog attachments.  The surface of the forged dog is induction hardened to provide longer wear resistance.  The forged dogs are available in size 348, 458 and 678, depending on the forged chain size that it will be engaged with.  The combination of TYC precision-made roller chain and the induction hardened forged dog render an optimal driving system operation.