FIELD: transportation.
SUBSTANCE: roller includes an axis fixed in bearings, a first and second disks with hubs mounted on the axis, the first of which is rotatable relative to the second one, a body formed by flexible elements connecting the disks along the periphery, and a spring located between the discs. Axis is equipped with a shoulder equidistant from the bearings, its surfaces located on both sides of the shoulder are made with unidirectional helical grooves with the same pitch, hubs are provided with radial pins, the ends of which are located in the helical grooves of the axis, the discs are rotatable about the axis, and the spring is made up of first and second segments, first is located between the first disk and the shoulder, and the second is between the shoulder and the second disk.
EFFECT: improved reliability of the belt conveyor with the proposed roller is ensured by preventing the failure of belt centering.