US Patent 7712966 Cylindrical roller bearing
Patent 7712966 was granted and assigned to NTN Corporation on May, 2010 by the United States Patent and Trademark Office.
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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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Patent Inventor Names
Yosuke Oya0
Yukihisa Tsumori0
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Official Website
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US Patent 07712966 Cylindrical roller bearing US Patent 7712966 Cylindrical roller bearing
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Patent Number
077129660
Patent Number
77129660
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
077129660
Date of Patent
May 11, 2010
0Patent Application Number
116637770
Date Filed
September 16, 2005
0Official Website
Patent Primary Examiner
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US Patent 07712966 Cylindrical roller bearing
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07712966
Date of patent
May 11, 2010
Patent application number
11663777
Date Filed
September 16, 2005
Patent primary examiner
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