Rolling bearing component, needle bearing and process for the thermochemical treatment of rolling bearing components.

Thin walled roller bearing component is produced from a cold strip made from a tempered steel having a tensile strength of not more than 480 N/mm 2>, a breaking elongation of at least 24%, an apparent yielding point of not more than 380 N/mm 2> and an anisotropic value R of 0.85-1.05 with delta Rmax = 0.3 mm. The cold worked roller bearing component has a surface hardness of at least 700 HV and a core hardness of no more than 650 HV.