gBOX 4.5

The 4.5MW gBOX4.5 platform proves we have the knowledge, experience, and resources to develop gearboxes that optimize the torque to mass ratio. By means of its innovative modular design and technology, maximum reliability and compliance with the most demanding standards are ensured.

Cost-efficient performance

Design and validation concepts applied to the gBOX4.5 development, only comparable to those used in demanding industries, such as aerospace, enable us to assure gearbox reliability from the first day in operation.

The main features of the gBOX4.5 platform are:

  • 2-stage (plus a high-speed module) compact drivetrain with main shaft transmitting bending
    moments to the main frame
  • all gears1 made from high grade alloy steels
  • structural castings made from high quality spheroidal graphite iron
  • lubrication by splash and electrical pump injection – oil bath ensures all gears, bearings & splines are lubricated during grid loss conditions

The gBOX4.5 platform, nowadays used in the Gamesa G128 Class IIA, G132 Classes III/S wind
turbines, provides clear evidence of the platform’s reliability, ease of assembly and operation, and
state-of-the-art technologies becoming reality.

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–              4.5i38
Rated power
[kW]       4500
–              37.88:1
Input torque
[kNm]    3926
Input speed
[rpm]      11.83
Oil type
–              ISO VG 320
Oil fill quantity2
[litre]      700
Dry mass3
[kg]         35096
Overall dimensions4
[mm]      2540/2985
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Low-speed shaft & intermediate-speed planet shaft
Two rows of integrated tapered (or cylindrical) roller bearings in O-configuration
Intermediate-speed shaft
Deep groove ball bearing
High-speed shaft
Two tapered roller bearings in O-configuration

37604494 / 33389620

6 El Sad El Aly Street – Dokki

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