300 series - Planetary drives

New product

The best solution to all situations when heavy duty needs high power

The series 300 gearboxes are extremely compact, but even though they develop a high specific power. The planetary gears are the ideal solution for all applications but above all for the severest ones, that is to say when bumps and overload are a standard condition rather than an exception. The product configuration is extremely versatile thanks to various options available for the type of fixing, the physical disposition of the reductions, the hollow shaft and the motor interface. All these features can be found in each one of the 18 versions that cover the range of transmissible torque from 1.000 to 1.100.000 Nm. Finding the ideal solution for any transmission problem is therefore more than a desire, it's something on which the end users can steadily count on - always.

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A variety of accessories and flange fittings are available, ensuring easy adaptability of the unit.

Input side

  • Fail-safe static multi disc brakes
  • Flange and coupling for hydraulic and electric motors, I.E.C. standards
  • Keyed input shaft for applications with indirectly coupled motor or belt and pulley drive 

Output side

  • Solid cylindrical shaft with key
  • Flanges
  • Straight coupling
  • Pinions
  • Splined bars.



  • Case hardened high tensile alloy steel gears
  • Ring gear induction hardened
  • Tooth profiles optimized to gain maximum root strength and minimize sliding contact to ensure high efficiency
  • All external tooth profiles shaved
  • Planet gears have an elliptically crowned tooth profile to give ideal loading along the teeth. The gears rotate on needle rollers mounted on case hardened pins.

Planetary carriers

High quality cast iron for strength and rigidity to ensure equal tooth loading in the planetary gearing.


Case hardened high tensile alloy steel is resistant to bending and torsional stresses to maintain proper support and alignment of all gears even under the most critical loading conditions.


Gearbox casing of nodular cast iron for strength and rigidity.

Steel housings are also available on request.


Mobile applications

  • Hoisting, earth moving and agricultural equipment
  • Combines
  • Winches, marine
  • Drilling, tunneling machines
  • Slew drives
  • Asphalt pavers
  • Dredges
  • Snowblowers, snowploughs
  • Harvesting machines

Industrial and stationary applications

  • Water treatment
  • Forming machines
  • Sugar mixing machines, agitators
  • Crushers
  • Screw feeders
  • Conveyors
  • Clay working machinery
  • Metallurgical
  • Shredders
  • Mixer drives
  • Roller drives
  • Paper mills

Torque Range
1000 ... 1.100.000 Nm

Transmissible Mechanical Power
up to 1050 kW

Gear Ratios
3,4 ... 5.000

Gear Unit Versions
In line
Right angle (with a spiral bevel gear set)

Output Configuration
Foot and flange mounted
Output shaft: solid with key, splined, splined hollow, hollow with shrink disc

Input Configurations
Flanged axial piston hydraulic motors
Hydraulic orbit motors
IEC and Nema motor adaptors
Solid input shaft

Hydraulic Brake
Hydraulically released parking brake on request

Electric Brake
DC and AC type

Tipo Torque Nm
300 1.000
301 1.750
303 2.500
304 3.600
305 5.000
306 8.500
307 12.500
309 18.000
310 25.000
311 40.000
313 55.000
314 80.000
315 100.000
316 135.000
317 170.000
318 250.000
319 350.000
321 500.000
323 800.000
325 1.100.000

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