... combined, in some cases many modules (curved and straight conveyor sections) can be driven from one drive unit. Simple ... and control peripherals in profile T grooves. Round belt drive on straight modules and bend modules.Product flow ... diameter of the roller have all kinds, see following:Roller conveyor dia: 25.4mm, 38.1mm, 50.8mm, 57mm, ... roller: 40kgCapacity per meter: 400kg Gravity roller conveyor