700 TW - Wind turbine Yaw Control gear motor

Planetary gear units for wind turbines for Yaw drive

700 TW - Wind turbine Yaw Control gear motor, Gearmotor & gearboxes for wind turbines

Bonfiglioli products are used in the latest state-of-the-art wind turbines to control the necessary functions of pitch and yaw drives systems.
The 700T series planetary speed reducers (wind turbine yaw control gear motors) are used by a number of leading wind turbine manufacturers thanks to their advanced technical features, creating the highest level of performance.

Technical data

Torque Range
2500 ... 300000 Nm

Gear Ratios
60 ... 3000

Key Features
Flange mounted
Output shaft: splined or with integral pinion
Rugged construction
High torque capacity
Output shafts supported by heavy duty bearings

General features
High transmissible torque
High radial/thrust load capacity
High shock resistance and designed for heavy duty
Wide range of reduction ratios (from 60 up to 3000)
High efficiency
Compact dimensions
Low weight
Low cost

Standards Gears are designed according to ISO 6336
Modular design
In line or right angle design
Different output versions
Input for electric motor (IEC, NEMA and compact)

Construction features
There can be from 3 up to 5 reduction stages(all of them with a planetary design), depending uponthe total required reduction ratio
Each stage may have from 3 up to 4 planets(to increase the deliverable torque)
The gears are made of alloyed steel and are heattreated (case hardening for suns & planets, inductionhardening or nitriding for internal toothed rings)
The planets are supported by roller bearings or fullrollers track bearings to obtain an high efficiency duringthe phases of starting and running
The output housing is made by nodular cast iron anddesigned to hold the heavy loads generated during themachine’s job

TypeNominal torquePeak static torque
706 T800015000
707 T1200025000
709 T2100052000
710 T2500060000
711 T3000075000
712 T42000105000
714 T60000150000
716 T80000200000
717 T100000250000
718 T120000300000