| abstract |
In a process for producing rolling bearing elements from a microalloyed steel, the rolling bearing elements are hardened only on their running track surfaces. To enable the process to be used particularly economically in spite of hot-forming and subsequent machining of the rolling bearing elements, these are hot-formed at 900 to 1200@C and cooled from the hot-forming heating pass under control, so that a fine perlite microstructure is formed. The rolling bearing elements are then machined and finally, for surface-hardening, heated partially inductively, austenitised and quenched in oil, salt or water. <IMAGE> |