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Slewing rings for the marine sector

Most valued partner of marine industry professionals

Rollix, manufacturer of slewing rings for the marine industry

Rollix has been manufacturing slewing rings for the marine and offshore sectors for over 30 years.

Rollix’s engineering and research and development departments are able to provide slewing rings specific to the needs of its customers: ball bearing and roller bearing technologies, or very high radial loads and high speeds (RLX-HDR). The rings are custom designed based on calculations including our finite element modelling. 

Rollix slewing rings are used in a large variety of equipment: offshore cranes, pods or azimuth thrusters, gangway rings, seismic winches, subsea winches, FPSO buoys and floating wind turbine anchoring systems.

Rollix also actively participates in the design and delivery of prototypes and pre-production series for the wind-powered ship market, as well as in the electric propulsion segment. These designs are perfectly in line with the Defontaine Group’s sustainable development strategy.

Our manufacturing facility enables us to take part in projects supplying slewing rings up to 6,000 mm and compliant with DNV, ABS, BV, LLOYDS, GL, API and RS standards.

  • Over 30 years of slewing ring expertise for the maritime sector
  • Up to 6,000 mm in diameter
  • Compliance with standards: DNV, ABS, BV, LLOYDS, GL, API, RS, etc.

A specialised design office to meet the challenging requirements of the marine sector

At Rollix, we have adapted and created a range of slewing rings designed to meet the constraints of the marine and offshore sector. Rollix’s engineering and R&D department offers products capable of withstanding marine constraints. 

All Rollix parts are designed to withstand the marine environment with specific surface treatments and patented seals.

couronne d'orientation rollix pour propulseur

Rollix slewing ring applications for the marine sector

couronnes d'orientation rollix pour le secteur marine et offshore

We design slewing rings for the marine and offshore sector. They can be fitted on the following machines:

  • Offshore vessels and oil rig cranes
  • Ship thrusters: pods or azimuth thrusters
  • ROV winches, seismic winches, subsea winches (with heave compensation systems)
  • Pipe handling winches
  • Wind-powered ships
  • Floating wind turbine anchoring systems

The slewing rings are custom made up to 6,000 mm in diameter and can be adapted to meet specific requirements:

  • Preloaded ball or roller bearings
  • Automatic lubrication system
  • Unique sealing solutions
  • Specific offshore coating

Rollix produces highly reliable quality products for maximum lifespan of the slewing rings.

Do you need a custom-made slewing ring?

Rollix, expert in slewing rings for the marine sector

site de production defontaine rollix

Rollix has been manufacturing slewing rings up to 6,000 mm in diameter for over 30 years. We offer tailored solutions for marine professionals.

Rollix is a most valued partner of offshore and marine sector manufacturers, providing expert advice and guidance in the design and manufacture of your slewing rings. Our rings are used for offshore cranes, pods, gangways, winches, buoys, wind-powered ships or floating wind turbine anchoring systems. We are at your side to optimise your performance.

Associated services

& design



& Services


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.

Do you need special guidance?