Abstract: Conveying system (100) comprising: two axially spaced supporting frames (2, 3) extending substantially parallel in the conveying direction (F) of the conveying system; at least one plurality of rollers (5); at least one plurality of supporting shafts (6), each adapted to be engaged in at least one of said supporting tubular frames (2, 3) to support at least one driving roller (5); at least one first supporting bearing (7) for each supporting shaft (6). Each roller comprises: at least one roller body extending around a rotation axis X-X; at least one engaging seat for at least one supporting shaft, placed concentrically to said roller body at least first removably coupling means for a second roller, a cover or a spacer.