Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
November 3, 2009
Patent Application Number
11235604
Date Filed
September 26, 2005
Patent Primary Examiner
Patent abstract
A retainer comprises a roller retaining click which is bent from an inner diameter edge of a rib portion toward the inside in an axial direction and extends so as to protrude and positioned between adjacent rollers. A part of the retainer other than the roller retaining click is hardened by high-frequency quenching and high-frequency tempering.
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