Wälzanordnung and processes for their preparation

Walzanordnung, characterized in that at least one of the rolling elements of a rolling bearing or a ball screw device is made of an alloy steel which contains: 0.1 to 0.7 wt .-% C, 0.1 to 1.5 wt .-% Si, 0.1 to 1.5 wt .-% Mn, 0.5 to 3.0 wt .-% Cr, 0.6 to 2.0 wt .-% V, 3.0 wt .-% or less of Mo, 2.0 wt .-% or less Ni, and the balance iron and unavoidable impurities of a density of carbon in the surface of the includes the finished product in the range of 0.7 to 1.3 wt .-% and a nitrogen density in the range of 0.15 to 0.3 wt .-% and wherein the number of at least one kind of carbide, nitride and carbonitride particles having a grain diameter of 0.1 microns or less, which have been eliminated in the finished surface, at least 400 particles / 100