Title:
ROLLING BEARING
Document Type and Number:
Japanese Patent JP2016006340
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a rolling bearing which is excellent in crack resistance while using general-purpose bearing steel, dispenses with long-time carbonitriding treatment, is low in cost, and achieves a long life even if used under a condition that foreign matter and water, intrude into the bearing, and a large load is applied.SOLUTION: There is provided a rolling bearing in which at least either of an inner ring and an outer ring is formed of bearing steel, which is applied with induction heat treatment, whose maximum oxide-group inclusion predicted by a method of extreme value statics is not larger than 40 μm, whose remaining austenite amount on a surface of a raceway face is 15 to 37 vol%, and in which a carbide area rate of a surface of an anti-raceway face is 1.5 to 10%.
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Inventors:
TAMURA KAZUKI
TOBITAKA HIDEYUKI
TOBITAKA HIDEYUKI
Application Number:
JP2014127302A
Publication Date:
January 14, 2016
Filing Date:
June 20, 2014
Export Citation:
Assignee:
NSK LTD
International Classes:
F16C33/64; F16C19/26; F16C33/58
Attorney, Agent or Firm:
Patent business corporation glory patent office
Yuriko Hamada
Kenji Kitajima
Hironori Honda
Yuriko Hamada
Kenji Kitajima
Hironori Honda
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