Special Motor-driven Rollers

PVC-Steel idlers with jacket consisting of PVC tube and bearing mounting head rigidly coupled by pressure.They are mounted on angular ball bearings at full complement with or without spacer cage, pre-lubricated and protected with anti-dust labyrinth seals.The finishes of the rollers, the executions of the bearings and the operating temperatures are showed from pages 12 to 15. The axle fixing shapes are shown on page 27.They are used in the production of gravity, push and motor-driven conveyors.The diagrams and tables on page 26 show the dimensional characteristics. Normal operating temperature, TN:_5 ÷ +50 [°C].

Due to the structural characteristics of the materials of which they are made, these rollers are used for motor-driven conveyor in combined systems of handling and stockpiling of light, medium-heavy and heavy packages in normal, dusty, corrosive, and also humid and warm environments.They are made of clamped or monobloc base rollers with steel tube, crown and simple double steel pinions, aligned on the tube or at one end of the jacket.

Steel rollers with the jacket consisting of tube and bearing mounting head rigidly coupled by welding.Monobloc steel rollers are used in conveyors with medium, heavy or very heavy loads. Depending on their application, the rollers have specific shapes for connection to the structure. This need is particularly noticeable in the production of gravity and motor-driven conveyors.For the correct installation of steel idlers, refer to the “Fixing rollers to structures” section on page 11.For the correct installation of motor-driven rollers, refer to the “Fixing rollers to structures” section on page 68. The diagrams and Table 60 show the shapes of the ends of the axles envisaged in TECNORULLI production’s “Monobloc steel rollers” programme.On request, other forms of connections and rollers with hubs can be considered.

With PVC pipe and head, with steel tube and PVC head. They are mounted vertically with sliding guide functions; horizontally for special applications such as the mounting for tangential belts in motor-driven conveyors through driven base rollers or rollers with pulley for flat belt. With plastic wheels on steel axles, assembled in sequence, they are used as an alternative to tapered rollers in gravity curves for the handling of packages with a flat supporting surface and light loads. The wheels can be individually assembled, fixed on flatbeds by means of suitable brackets, in correspondence with exchanges between curves and tracks with idlers, in conjunction between tracks with ortogonal motor-driven rollers or with the function of guide-abutment of packages.