Rollers deliver a wide range of applications in load handling systems, which, in addition to being a quick and clean installation option, have modules that facilitate their adaptation to different layouts without significant modifications. Roller transport systems support high radial loads and are easy and inexpensive to maintain. The traction system is made from chains and gears installed at one end of the rollers where the traction force is transmitted, turning them in the desired direction, and can be easily adjusted, just by reversing the direction of rotation of the motor.