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Slewing rings for the wind power market

Unique expertise in renewable energy

Rollix, world leader in the design and manufacture of slewing rings for wind turbines

Rollix is the world’s leading supplier of blade and nacelle rings, and equips one in four wind turbines: from small onshore wind turbines of 20 kW to the latest generation of 15 MW offshore wind turbines.

Since 1980, Rollix has been working with wind turbine manufacturers and independent power producers to provide custom-made solutions. Rollix created the first blade rings, and has developed unrivalled experience and expertise in the wind power industry.

  • 248,000 rings in operation
  • 145 GW of installed capacity
  • 11.2 GW offshore
  • 21% of wind turbines worldwide equipped with Rollix rings up to 6 metres in diameter

Blade and nacelle bearings: from small urban wind turbines to multi-megawatt wind farms

Rollix slewing rings are delivered worldwide from our production site in France. Our production lines are specifically dedicated to wind power and are audited and certified by our customers, as well as by end users including energy operators. 

At Rollix, our high standards guarantee reliable, high-precision blade and nacelle bearings. Our production processes are continuously improving, our components undergo an extensive inspection and our suppliers are chosen based on a strict selection procedure.

We apply continued investment in research and development and in our production facilities to produce large  blade bearings of over 6 metres in diameter.

éolienne offshore siemens équipée de produits rollix

Our certifications for the wind power market

ISO 9001: 2015

ISO 14001

45001: 2018

ISO 50001

EN 9100: 2016

IATF 16949: 2016

NADCAP

Design office specialised in wind power for optimum performance

At Rollix, we adapt and develop our range of slewing rings according to the changing needs and constraints of the wind power market. In close collaboration with our customers, our design office, specialising in wind power, aims to test and design high-quality blade bearings for blades and nacelles:

  • Optimised design over the entire product lifespan
  • Finite element calculations
  • Tests on rolling elements, sealing, lubrication
  • Dynamic test benches up to 20 MW

For prototyping or mass production, our team of specialised engineers will provide assistance for your projects and optimise the design of your rings.

banc essai Rollix
Defontaine Group wind turbine test bench

Rollix, Spares and Services

Need to have a ring inspected? A seal replaced? Or a quick delivery? We offer a complete range of services for preventive and corrective maintenance.

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In-situ inspection and maintenance by our qualified technicians

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Sale of spare parts

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Slewing rings available from stock

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Dedicated logistics service for worldwide deliveries

Are you looking for spares & services?

Discover all our slewing rings solutions

Rollix, the slewing ring expert

site de production defontaine rollix

Rollix is a French designer and manufacturer of specific slewing rings and bearings from 100 mm to over 6,000 mm in diameter, with or without gear, since 1969.

With 95% of our production exported to over 65 countries, we offer innovative solutions and parts designed specifically for your application.

Rollix is a most valued partner of wind turbine manufacturers and independent energy producers, providing expert advice and guidance in the design and manufacture of your blade and nacelle rings.

We are at your side to optimise your performance.

Associated services

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Study
& design

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Fast
Make

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Logistics 

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Spares
& Services

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Laboratory

We have set up specific services to guarantee the quality of our products and the satisfaction of our customers throughout our exchanges.

Deadline constraints, technical challenges, secure deliveries, guaranteed lifespan of parts… The services of the Defontaine Group facilitate our collaboration.

FAQ

Rollix documentation

All our catalogues, brochures, installation manuals and technical data sheets can be downloaded from the media library on our website: https://www.defontaine.com/en/media-library/

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We have a series of online tutorials on our YouTube channel to help you install and adjust the sprockets on a slewing ring: https://www.youtube.com/playlist?list=PLfBLMW9HR0pBSVxm4mciTa2wCpmJYhPGN

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Rollix products

Rollix Compact CB slewing rings are designed to be interchangeable with standard products on the market, making them easy to integrate or replace in high-precision applications (robotics, indexing tables, machine tools, etc.). For further information, please consult the full Rollix slewing ring catalogue in the media library on our website.

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You can indeed obtain a quote for a single unit. To obtain the price of a bearing or a slewing ring, you can visit our online shop (b2b.defontaine.com) or contact our sales teams directly at sales@rollix.com or via the contact form on our website https://www.defontaine.com/en/contact/

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The Defontaine Group has an online shop for the sale of standard Rollix products. Our e-shop is https://b2b.defontaine.com/

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To find out if we have a distributor in your country, you can contact us via our online form at https://www.defontaine.com/en/contact/ or by email: for the Rollix brand, send an email to sales@rollix.com and for the Defontaine brand to sales@defontaine.com .

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We naturally offer custom-made slewing rings and bearings. To arrange this, please contact our sales team, who will liaise with our design office.

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Rollix offers high-precision slewing rings https://www.defontaine.com/en/our-markets/machine-tool/ for applications such as rotary tables, machine tools and robots, as well as for wind turbines https://www.defontaine.com/en/our-markets/wind-energy/ with large-sized slewing rings, and for the marine market https://www.defontaine.com/en/our-markets/marine/ including wind assisted propulsion systems.

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To obtain a quote for a bearing or slewing ring, please visit our online shop (b2b.defontaine.com) or contact our sales teams directly at sales@rollix.com or via the contact form on our website https://www.defontaine.com/en/contact/

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Please follow the slewing ring selection procedure as outlined in the document “6-step process for selecting a slewing ring”, which can be downloaded from the media library section of our website.

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To request a quote for an HD-R slewing ring, please contact our sales team at sales@rollix.com or via the contact form on our website https://www.defontaine.com/en/contact/

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All ring part numbers are listed and categorised by family: standard ball bearings, light-series ball bearings, standard crossed-roller bearings, precision bearings and special-purpose bearings. All part numbers are listed in the slewing ring catalogue, which can be downloaded from the media library on our website.

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Light-series ball slewing rings can be manufactured from L-shaped profiles or solid sections. There are three classes of clearance accuracy for each type of slewing ring. These slewing rings are not suitable for suspended loads.

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Typically 5 to 30% less fuel, depending on the vessel, route, technology and operation.

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To provide a quote, if the item is a standard part listed in our catalogue, our sales teams will need the part number, the quantities required, and the Incoterm associated with your request. Our standard items can also be ordered directly via our online shop (https://b2b.defontaine.com/). If you would like our engineering teams to assist you in defining and designing a bespoke slewing ring, you will need to complete our IT ETR form (available to download from the media library on our website).

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To understand the differences, please refer to our coding system in our brochure ‘Slewing Ring Families’, which can be downloaded from the media library on our website.

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Most observed cases range between 3 and 7 years.

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Rollix offers solutions for wind-assisted propulsion. Wind-assisted propulsion is a propulsion aid that harnesses the wind using various technologies (rigid sails, wings, Flettner rotors, kites) to reduce fuel consumption and emissions. Find out more: https://www.defontaine.com/en/our-markets/wind-assisted-propulsion/

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We manufacture slewing rings and bearings with an average diameter ranging from 150 mm to 6200 mm.

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Rollix manufactures preloaded slewing rings with crossed rollers, or with two or three rows of rollers. Rollix also offers preloaded or reduced-preload slewing rings with single-row or double-row ball bearings.

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Slewing rings are classified into several main categories based on the rolling element, geometry and level of precision.
1. Ball slewing rings
Rollix offers several variants of ball slewing rings, designed for standard applications involving moderate to high loads.
• Single row of balls
Compact slewing rings, suitable for moderate loads and where space is limited.
• Double row of balls
Higher load capacity than the single row; used for more demanding machinery.
• Light series (L-shaped profiles or solid rings)
Designed for applications requiring weight reduction.
2. Crossed-roller rings
Crossed rollers provide high rigidity and a high load capacity, particularly for combined loads.
• Single row of crossed rollers
Capable of withstanding axial and radial loads in compact applications.
• Double row of crossed rollers
Even greater rigidity and capacity, used in cranes, wind turbines, forestry equipment, etc.
3. High-precision rings
Rollix offers ranges specially optimised for high-precision applications, such as robotics or indexing tables.
• Compact range
Very high positioning accuracy, available in a wide range of diameters (148 mm to over 2,400 mm).
• Compact Light
A lighter version of the Compact range, still designed for high precision.
4. ‘Compact CB’ slewing rings
Although the term ‘CB’ is not explicitly mentioned in the PDF, it generally refers to the Compact / Compact Light range, designed for applications requiring minimal space and superior precision.
5. Other complementary ranges:
• Three-row roller slewing rings
Slewing rings for extreme loads (offshore cranes, mining machinery).
• Hybrid slewing rings / thin sections
Alternatives combining bearings and slewing rings, for severe space constraints.
For further information, please consult the complete Rollix slewing ring catalogue in the media library on our website https://www.defontaine.com/en/media-library/

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Standard Rollix products can be purchased via our online shop https://b2b.defontaine.com/. You can also contact our sales team at sales@rollix.com or via our online form at https://www.defontaine.com/en/contact/. Our sales team will be able to put you in touch with the distributor in your area.

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The Rollix product catalogue, like all Rollix marketing materials, can be downloaded from the website: https://www.defontaine.com/en/media-library/. https://www.defontaine.com/mediatheque/.

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All our marketing materials can be downloaded from the website: https://www.defontaine.com/en/media-library/

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The slewing rings in the light-series range are the most economical.

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Our prices can be viewed on our online shop (https://b2b.defontaine.com/) or by sending your enquiry directly to our sales teams at sales@rollix.com or via the contact form on our websitehttps://www.defontaine.com/en/contact/

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Rollix E-shop & distributors

We have slewing rings with external teeth in stock. To order directly, please visit our e-shop: https://b2b.defontaine.com/

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To find a Rollix distributor in your area, please contact our sales department either via the contact form on our website https://www.defontaine.com/contact/ or by email at sales@rollix.com, and we will put you in touch with your nearest distributor.

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Our Rollix e-shop https://b2b.defontaine.com/ allows you to order standard slewing rings directly online and have them delivered in under a week from our stock.

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Rollix services & maintenance

A significant proportion of our offering for the wind power market relates to maintenance and associated services: replacement rings, fasteners, seals and grease containers. On-site services include video inspection, seal replacement and ring inspection. Services carried out at our factories include lubricant analysis, ring retrofitting, root cause analysis and engineering.

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To provide a quotation for a Rollix slewing ring, if it is a standard part listed in our catalogue, our sales teams will need the part number, the quantities required, and the Incoterms associated with your request. Our standard parts can also be ordered directly via our online shop (https://b2b.defontaine.com/). If you would like our engineering teams to assist you in defining and designing a specific slewing ring, you will need to complete our IT ETR form (available for download from the media library on our website).

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Providers & SRM

Yes, the Defontaine Group has machining subcontractors within its supplier network.

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To become a supplier of industrial parts or services, please complete the form on the contact page of our website https://www.defontaine.com/en/contact/ or visit the SRM platform https://app11.jaggaer.com/portals/tksp/login?local=1?

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To become a supplier to the Defontaine Group, you must register on our supplier portal https://app11.jaggaer.com/portals/tksp/login?local=1 or contact us via our contact form https://www.defontaine.com/contact/.

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To register on our supplier platform, please visit: https://app11.jaggaer.com/portals/tksp/login?local=1

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The Defontaine Group does indeed have a dedicated platform for suppliers. To access it: https://app11.jaggaer.com/portals/tksp/login?local=1

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OTD/quality/procurement/technology&innovation/sustainability

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The Supplier Code of Conduct can be downloaded from our website: https://www.defontaine.com/en/media-library/

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For any issues, please contact us via our online contact form: https://www.defontaine.com/en/contact/

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