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.
Torque Range
2500 ... 300000 Nm
Gear Ratios
60 ... 3000
Key Features
Flange mounted
Output shaft: splinted 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 upon
the 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 heat treated (case hardening
for suns & planets, induction
hardening or nitriding for internal
toothed rings)
The planets are supported by roller
bearings or full rollers track
bearings to obtain an high
efficiency during the phases of
starting and running
The output housing is made by
nodular cast iron and designed to
hold the heavy loads generated
during the machine's job
INDUSTRIAL GEARS
