METHOD FOR PRODUCING A ROLLING BEARING COMPONENT
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United States of America Patent
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Issued Date -
Feb 22, 2024
app pub date -
Dec 14, 2021
filing date -
Jan 8, 2021
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Abstract
A method for producing a rolling bearing component includes providing a rolling bearing component formed from a rolling bearing steel, heating the rolling bearing component to form an austenitic microstructure, and cooling the rolling bearing component in a warm salt bath to a temperature below a martensite start temperature of the rolling bearing steel. The rolling bearing component has a wall thickness or a diameter of at least 85 mm at at least one point and includes a martensitic microstructure in an edge layer region and a microstructure consisting of pearlite or upper bainite in a core region after the cooling. A rolling bearing component produced by the method and a rolling bearing comprising the rolling bearing component are also disclosed.
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