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US 2024/0352973 A1Published application
Rolling Bearing
AssigneeNsk Ltd.
InventorsMasahide NATORI, Hiroki KOMATA
Life of this patent
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Abstract
There is provided a rolling bearing capable of suppressing the occurrence of white structure spalling. A rolling bearing contains a structure having a solid solution carbon amount in a martensitic structure after heat treatment of 0.35 mass % or more and 0.65 mass % or less and a volume ratio of spheroidized carbides having a diameter of 200 nm or more of 4.5% or less.
Claims5
A rolling bearing comprising:
- a structure of a front surface including at least a rolling contact surface,
- the structure containing a structure having a solid solution carbon amount in a martensitic structure after heat treatment of 0.35 mass % or more and 0.65 mass % or less and a volume ratio of spheroidized carbides having a diameter of 200 nm or more of 4.5% or less.
Dependencies are inferred from the claim text.