Because of their features and advantages like:

• High Efficiency
• Smooth and Quiet Operation
• Greater Load-Carrying Capacity
• Improved Torque Transmission
• Better Alignment Capabilities

Helical, Bevel-Helical, Spiral Bevel gearboxes from our offer have applications in many industries like like Manufacturing Industry, Steel Industry, Power Industry, Mines and Minerals Industry, Wastewater Treatment, Textile Industry, Food Industry, Plastic Industry, Elevators and Conveyors.

Constructive characteristics of these reduction gearboxes are:

Casings built in cast iron and worked externally on all faces to have a wide fixing and assembly possibility. After working, helical-toothed cylinder gears are treated with casehardening, quench hardening and tempering before grinding the involute profile. Spiral conical gears are built in alloy steel, cut with the GLEASON system, casehardened, quench hardened and torque lapped on the ideal generating rolling curve. The load and resistance capacity of the same gears have been calculated on pitting and breakage based on the regulations, and gearboxes from our offer have next certifications:

• ISO/DIN 6336 (recommendation projects)
• DIN 3990
• AGMA 2001-B88

Reduction gears slow shafts, except for hollow shafts, are built in 42CRMO4 steel while fast shafts (input) are built in 16CrNi4 UNI 7846-78. Used bearings are tapered rollers or revolving rollers, of high quality and duly sized to grant a long life in required lubrication conditions. Good component execution as well as accurate assembly achieve good efficiency which assumes the following values based on the reduction stages:

• 0.985 at one reduction stage
• 0.97 at two stages
• 0.96 at three stages
• 0.95 at four stages

SPIRAL BEVEL GEARBOXES

Spiral bevel gearboxes BG incorporate the most modern advances in bevel gearbox design and construction.

These gearboxes offer an extensive range of ratios together with an excellent power-to-size relationship as well as low noise levels even at high-speed operation.

• The gearbox, which is made in cast iron, is of cuboid design with all external faces machined and with threaded fixing positions on each face (usable depth of threaded hole = twice the diameter).
• Input and output covers and housing are supplied with two location spigot diameters (h7) together with threaded fixing holes (except size BG75) for possible co-axial fixing.
• The alloy steel spiral bevel gears are cut in the GLEASON system, case hardened, tempered and lapped to the exact mounting position.
• Input and output shafts are manufactured in hardened and tempered steel with all surfaces ground.
• Available also with an IEC motor flange adapter.

Thanks to the quality of the gears and machining tolerances, an overall efficiency of between 94 and 97% can be expected.

screw jack

Mechanical screw jacks series S, could be used in the following fields: lifting, travelling, handling and any type of linear traverse requiring high thrust capacity.

Screw jack with travelling spindle. Rotation of the worm wheel generates axial movement of the threaded spindle as it is thrusted by the ring gear of the screw jack.

Thanks to their manufacturing simplicity, they are highly resistant and suitable to be used also under heavy conditions, besides lubrication by means of long-lasting lubricant reduces maintenance.

Should they be installed in the same plant, they could be series connected by shafts, couplings and spiral-bevel gears to synchronize them perfectly; in this way out of balance loads could also be controlled,

All screw jacks could be also used for:

• alternating or direct current motors;
• hydraulically-operated motors
• pneumatic motors
• manually-operated control

The following manufacturing materials are used, aside from the dimensions:

• housing, covers: G22 grey cast iron
• worm: 39 NiCrMo5Pb
• ring gear: GCuSn12 bronze
• threaded spindle TPN: steel R80 (36 SMnPb14 obtained by chip forming machining)