Patent ID: 7213973

Claim:
A single-row or multi-row rolling bearing having thin-walled races, wherein an inner and outer races each having a respective running surface for rolling bodies between the races, the races having a core region outward of the running surfaces, the races are comprised of a martensitic, through hardened steel and also having the following features: a surface hardness of ≧613 HV (56 HRC) in the regions of the running surfaces of the race, a core hardness of ≧285 HV (28 HRC) of the race, a difference (Δ) between the surface hardness and the core hardness of ≧150 HV (9 HRC), the core hardness being reached at a depth into each race of between 8% of a diameter of rolling bodies between the races and 90% of a wall thickness in a race base beneath the running surface, and a ratio of a pitch circle diameter T k of the bearing to the rolling body diameter Dw of 3 20.