US Patent 7189171 Rolling bearing for belt driven continuously variable transmission

Patent 7189171 was granted and assigned to NSK Ltd. on March, 2007 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

NSK Ltd.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7189171

Date of Patent

March 13, 2007

Patent Application Number

10947393

Date Filed

September 17, 2004

Patent Primary Examiner

‌

Vicky A. Johnson

Patent abstract

A bearing is provided to have sufficient durability even when CVT fluid having a low viscocity is used, with its flow rate kept small, so that the efficiency of the belt-type continuously variable transmission is improved.

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