Defontaine SAS

France

All business names, logos, and images are used for informational purposes only. If you are the owner of any image or content displayed and wish to remove or update it, please contact us. By claiming your listing – see link at the bottom- you can upload your official media and desired texts.

Defontaine SAS is a French engineering and manufacturing group established in 1946 in La Bruffière, Vendée. The company is known worldwide for its specialized bearing brand Rollix, which develops and manufactures slewing rings, large-diameter ball bearings, and crossed-roller bearings for rotational motion control.

With its primary industrial base in western France and complementary manufacturing sites internationally, Defontaine supplies slewing bearings to global machinery builders and renewable energy developers, exporting approximately 85% of its output. The group operates advanced research, finite-element simulation, and full-scale 1:1 dynamic test rigs on-site.

Offer

Defontaine / Rollix supplies rotational motion and large-bearing solutions:

Ball Slewing Rings: Single-row and double-row four-point contact ball slewing bearings, light-series turntable bearings, and compact thin-section slewing rings with internal, external, or non-geared configurations.
Crossed Roller Slewing Rings: High-rigidity crossed roller bearings designed for machine tools, medical scanners, and robotic positioning tables requiring high stiffness under overturning moment loads.
Specific Heavy Duty Series: HD-R (Heavy Duty Radial) and DR-S (Double Row Speed) precision slewing bearings.
Renewable Energy Solutions: Blade pitch and yaw slewing rings for onshore and offshore wind turbines up to multi-megawatt offshore class, as well as marine and tidal turbine bearings.
Engineering & FEM Services: Finite Element Method (FEM) analysis for load distribution, interface deflection, and static/dynamic lifecycle calculations.

Defontaine SAS

Offer

Tags