A roller conveyor, comprising: a plurality of rollers (2) each of which has a cylindrical external surface (21), arranged to enable an object to be transported to rest; a motor (3); a transmission element (4), which kinematically connects the motor (3) to the rollers (2). The transmission element (4) is placed in contact with the external surface (21) of the rollers (2), or in contact with a portion of the rollers (2) which has the same diameter as the external surface (21), and in the same position as the contact point of the external surface with the element to be transported.