Maximum reliability due to the optimal load distribution and slide bearing technology:
EQ-Gear® combines maximum power density with compact dimensions in a unique way.

Operating conditions with different combinations of speed and torque place high requirements on gearboxes in wind power. Special materials as well as innovative coating methods ensure an optimal operation – even at extremely high pressures and very low speeds. An intelligent planetary bearing system ensures a uniform load distribution in the respective operating conditions and optimizes the meshing contact of the gears. The intelligent planetary bearing system in connection with the use of five planets maximizes the power density.

The EQ-Gear® is suitable both for low and medium speed platform configurations in a coaxial design as well as for the highspeed drive train with an axial offset generator connection. In particular with the coaxial platform configuration, the wire required for the pitch control can easily be guided through the gearunit between the input shaft and output shaft. The unique wireless temperature monitoring ensures the remote maintenance of slide bearings as well as the optimized self-adjusting load distribution between the planetary stages. This results in an excellent overall system that is designed specifically for the drive train of the wind turbine: with a RENK coupling and a RENK condition monitoring system.
Optionally, the entire system, including the electrical connection, can be simulated and validated.



Optimal load distribution


Certified as per IEC and GL directives


Reduced weight and parts variety


Maximum power density

Kompakt yapı tarzı

Intelligent state monitoring


Technical data

Output range:
3 - 15 MW
Main drive torque:
Up to 20 MNm
Rotation speed:
7 - 15 rpm
10 - 200
Direction of rotation:
CW und CCW possible
Temperature range:
-20°C up to 60°C outside temperature

Other products

Test systems

Wind turbines

RENK nacelle test rigs help manufacturers and operators minimize downtimes – and therefore optimize profits.

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Slide bearings

RENK slide bearings meet the highest requirements in terms of product quality, operating safety, durability, and effective condition monitoring.

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EQ-Flex® flexible disk couplings

For reliable torque transmission between gearunit and generator.

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Condition Monitoring

RENK Condition Monitoring is a highly sophisticated status monitoring system.

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Relevant industries

Power generation

Wind energy

We define the standard for wind power technology

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