ROLLERS FOR CHAIN DRIVEN CONVEYORS For chain driven roller conveyor systems we mean a series of rollers supported by a structure, suitable for unit handling, driven by chain. The chain driven roller conveyor systems are used for the controlled handling of a great variety of loads, with regular or irregular shapes, with heavy or light unit weights, rugged or fragile, either horizontally or with a light slope. They are used to synchronize automatic transport systems, as slave systems for assembly stations and operating machines, with continuous, step-by-step or accumulating advancing, and for all those applications where idle roller gravity conveying systems are not recommended.