Schaeffler has developed a new high-grade martensitic hardening steel for rolling bearings, offering maximum corrosion resistance under extreme conditions - such as in dry-running applications or when the bearings are in contact with aggressive media.

Based on the consistent refinement of high-grade Nitrosteels, Schaeffler's new Cronitect martensitic hardening steel achieves a very high hardness through its chemical composition, in combination with a new thermo-chemical surface layer treatment process.

Cronitect is therefore able to withstand extreme conditions - including salt spray testing in accordance with DIN 50021 SS - without any problems, even after 600 hours.

Cronitect's resistance to corrosion is claimed to be many times better than that of conventional Nitrosteels. The name Cronitect is derived from the chemical composition of the material and from its special heat treatment process. The 'tect' part of the name is found in other Schaeffler coating products and refers to the excellent corrosion protection. Rolling bearings that use Cronitect come in either sealed or non-sealed version.

Schaeffler recently opened a new development centre for the surface coating of components at its headquarters in Herzogenaurach, Germany. The new centre offers opportunities to develop new processes and combinations of materials and coatings technologies. The opening of the new centre represents a further expansion of the company's R&D activities.

Mrs Maria-Elisabeth Schaeffler, partner of INA-Holding Schaeffler KG, emphasised the outstanding importance of R&D for Schaeffler, particularly with regard to innovation: “By opening the new Surface Technology Centre, our group of companies is intensifying its commitment to the future, particularly in nanotechnology, and is expanding its expertise in rapidly converting research results into innovative and efficient products.”