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Industrial Gearbox | Helical Units | Reggiana Riduttori

Supplier: Pacific Hydraulics

Reggiana Riduttori helical units are available in both standard series and lifting series.

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The different mechanical and dimensional characteristics have been studied to better adapt to the specific requirements of this field of application.

The high power to weight ratio of all units, combined with low volume, enables perfect installation in the most critical situations.

New concepts have been used to improve the noise level in a consistent way.

To obtain higher performance, particular consideration has been given to efficiency and housing surface area to guarantee a convenient heat dissipation in most cases.

When necessary, standard series units can be supplied with cooling fan(s) fitted to high speed shaft.

Gears and shafts

The cylindrical gears are with helical profile ground after heat treatment; the bevel gears are with Gleason spiral profile. Both of them are made of casehardened and tempered steel 20MnCr5 or 17NiCrMo6-4 UNI EN 100084.

All the gears have been designed and checked according to ISO 6336 and ISO 10330 standards (25000 h).

The cylindrical low-speed shafts are made of quenched and tempered steel 42CrMo4 UNI EN 10083-1 while the hollow low-speed shafts are made of Fe510B UNI EN 10025. The high-speed shafts are made of casehardened and tempered steel 20MnCr5 UNI EN 10084.

Gear casing

The casings of the gear units are generally made of grey cast-iron EN-GJL-250 UNI EN 1561 up to size 90 for the standard series, and up to size 93 for the lifting series; larger sizes (for standard and lifting series) are made of electrically- welded and quenched steel Fe430B UNI EN 10025.

On requested, the casings can however be made of electrically-welded and quenched steel for all sizes.
All the casings are made in two parts to make gear unit fitting and maintenance easier.

Input configuration

Helical and bevel-helical units can be configurated with solid input shaft complete with key seats according to UNI6604:1969, with elastic coupling and flanges for IEC motor.

On requested, we can make flange for NEMA motor, and more compact and special solutions.

For the lifting series, the high-speed shafts have been designed with elongated end to allow fitting a brake between motor and gear unit.

Output configuration

Helical and bevel-helical units can be configurated with solid output shaft complete with key seats or with hollow shaft with key seats according to UNI6604:1969 and hollow shaft with shrink disc.

For the lifting series, the low-speed shafts can also be made with splined end for fitting by means of broached flange.

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Product catalogue:

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