Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yosuke Oya0
Yukihisa Tsumori0
Date of Patent
May 11, 2010
0Patent Application Number
116637770
Date Filed
September 16, 2005
0Patent Primary Examiner
Patent abstract
A relief groove (23) is provided at a corner in which a track surface (21) and a flange surface (24) cross, in an inner ring (20) of a cylindrical roller bearing. A chamfer (42) is provided at a corner part in which a rolling surface (41) and an end surface (43) cross, in a cylindrical roller (40). When it is assumed that the height of the chamfer (42) from the rolling surface (41) is “h” and the curvature radius of the chamfer is “R”, the relation such that 1.0≦R/h≦1.5 is satisfied.
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