Steenox, the new high-tech anti-corrosion steel

Always at the forefront of technology, JESA again proves innovative thanks to the use of our new high-tech anti-corrosion steel, Steenox.

Steenox is a ground-breaking combination of a martensitic stainless steel and a special heat treatment. This technology increases the performance of the material, both in terms of fatigue- and corrosion-resistance.

The new steel, Steenox, is the solution for use in bearings in a particularly corrosive environment where service life is critical.

Compared to conventional stainless bearing steel, AISI 440C (DIN 1.4125), a salt-spray test demonstrated 15 to 20 times superior resistance to corrosion.


Annex 1: JESA solution made of Steenox

Steenox, the ideal solution for the specific needs of the food industry

In recent years, the demands in terms of speed, caustic cleaning agents or loads have increased steadily. Cam followers deteriorate in a short time due to heavy loads and a very aggressive environment (appearance of rust on stainless steel). The ideal solution to this problem? The use of Steenox, an extremely resistant stainless steel.

This technology is currently used with a variety of bearings and has clearly shown its strengths for our customers in the food industry. Steenox has been used with custom-made bearings where increased resistance to corrosion is critical in an aggressive environment.


Annex 2: JESA headquarters at Villars-sur-Glâne in the Swiss canton of Fribourg (Switzerland)

About us

JESA, founded in 1969 by Mr. Joseph Egger in Villars-sur-Glâne in the Swiss Canton of Fribourg, is currently a limited company of the POLYGENA group and employs a workforce of approximately 200 people. A specialist in bespoke precision ball bearing solutions and units containing engineering polymers, JESA has been a leading player in this market for over 45 years. With a worldwide presence through sales offices in Germany, the USA, France, Great Britain and also in China, its turnover is around 50 million Swiss francs. JESA regularly invests in cutting-edge technology production equipment in order to pursue its journey towards operational excellence.


To contact JESA:

Dorothée Perriard
Marketing & Communication Specialist
Tel: +41 26 408 47 80
Email: [email protected]
Youtube :
LinkedIn :

Useful links

Steenox technology:
Case study: