Slewing ring and method for manufacturing a slewing ring

摘要

The invention relates to a large roller bearing ring (1), namely an inner ring (1a) or an outer ring (1b) of a large roller bearing, with an outer diameter (2) of at least 0.5 m made of a steel alloy, comprising 0.45 to 0.55 wt % Carbon, 0.20 to 0.40% by weight silicon, 1.30 to 1.60% by weight manganese, 1.80 to 2.10% by weight chromium, 0.50 to 1, 20% by weight of nickel and 0.10 to 0.40% by weight of molybdenum. The invention further relates to a method for producing a large roller bearing ring (1) and the use of a steel alloy for producing a large roller bearing ring 1.