Patent ID: 7785531

Claim:
An alloy for aircraft roller bearings, wherein the alloy comprises: from 0.45 to 0.85 wt. % of carbon, not more than 2.0 wt. % of manganese, from 0.05 to 1.0 wt. % of silicon, from 8.5 to 11.5 wt. % of chromium, from 2.5 to 4.5 wt. % of molybdenum, from 1.65 to 2.5 wt. % of vanadium, not more than 2.0 wt. % of tungsten, not more than 0.5 wt. % of niobium, not more than 0.5 wt. % of tantalum, from 0.02 to 3.0 wt. % of nickel, not more than 0.5 wt. % of cobalt, not more than 0.1 wt. % of aluminum, not more than 0.01 wt. % of nitrogen, balance iron and impurities due to production.