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US 6,284,065 B1Granted
Bearing steel
AssigneeOvaka Steel AB
InventorsThore Lund, Staffan Larsson, Patrik Ölund, Roger Björn, Mikael Sundqvist
Life of this patent
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Abstract
An improved bearing steel, adapted for the manufacturing of thick-walled bearing rings, containing, in weight-%: C 1.00-1.10 Si 0.15 max Mn 1.35-1.65 Cr 1.70-1.90 Ni 1.00-1.15 Mo 0.40-0.50 Cu 0.30 max. Al 0.015-0.050 the balance being Fe and normal residual elements and contaminants.
Claims3
A bearing ring having a cross-sectional wall thickness of at least 190 mm made from a bearing steel comprising, in weight %:
- C 1.00-1.10 Si 0.15 max Mn 1.35-1.65 Cr 1.70-1.90 Ni 1.00-1.15 Mo 0.40-0.50 Cu 0.30 max Al 0.015-0.050
- the balance being Fe and normal residual elements and contaminants.
Dependencies are inferred from the claim text.