Rotor Brakes and Discs for Offshore Wind Turbines

Altra Industrial Motion
Altra Offshore Wind Turbines

Rotor Brakes and Discs for Offshore Wind Turbines

When a massive turbine with a rotor diameter of more than 160 meters required new rotor breaks, the turbine OEM reached out to Stromag to inquire about a robust solution.  This 10-megawatt turbine, which can power close to 6,000 homes, operated in an offshore application.

The manufacturer of the turbine contacted Stromag based on many years of successful collaboration on its smaller sub 10 MW turbines. Stromag engineers worked extensively with the OEM to develop the technical specifications for the new turbine. The Stromag team also collaborated with the OEMs transmission sub-contractor to ensure that the brakes would integrate easily within the generator assembly package.

Ultimately, Stromag Model CB90R rotor brakes and discs were supplied to meet the large wind turbine dynamic and parking brake requirements. It was determined that a configuration of three smaller CB90R brakes acting on a disc was preferred vs a single, larger brake caliper.

Extensive brake testing was performed by Stromag at its test center. Additional testing was conducted by the OEM on a turbine prototype. The brakes utilize a unique organic friction lining material that can maintain desired performance characteristics even with some oil contamination.


  • Hydraulically-applied brakes
    • Parking and low-speed dynamic brake functionality
    • Braking force up to 190 kN
    • Flexible, modular design
    • Quick and easy pad replacement
    • Protection C4-H standard ISO 12944-2

Related Articles

Amusement park Va. Gear Motors

Amusement Parks Need Gear Motors Too

A popular amusement park in Williamsburg, Virginia had one ride that needed replacement drives. The flat-bottom boat attraction moves passengers…

Related Whitepapers

What is the sealing technology of choice for water and wastewater treatment?

Water and wastewater treatment is not a glamorous or popular topic. However, it is a critical part of our everyday lives that is often taken…

Benefits of Design to Value

Pump design has a significant impact on overall value, from features and configurations to costs, materials and operating parameters. Pump manufacturers can increase customer value…

Valve Sizing Technical Data

Valve Sizing – Check-All® furnishes two methods to aid the customer in the selection of the correct valve size to meet their flow requirements; Flow…

Water hammer can and must be eliminated

Check valves prevent the hydraulic shock by design By Sheila Kennedy, CMRP, Chemical Processing Contributing Editor INTRO: Water hammer can be so damaging to machinery…


Leave a Reply

Your email address will not be published. Required fields are marked *

Sign up for our Newsletter

By submitting this form, you are consenting to receive marketing emails from: Empowering Pumps & Equipment, 2205-C 7th Street, Tuscaloosa, AL, 35401, You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email. Emails are serviced by Constant Contact