The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 2025
Filed:
Feb. 23, 2023
Ntn Corporation, Osaka, JP;
Shouta Toho, Kuwana, JP;
Naoki Nakatochi, Kuwana, JP;
NTN CORPORATION, Osaka, JP;
Abstract
Provided is a tapered roller bearing () for which a dimensionless number X is defined by the following formula (1) based on a small-diameter-side gap Swhich is a gap between a small-diameter-side annular part () of a retainer () and a small collar part () of an inner ring (), a large-diameter-side gap Swhich is a gap between the large-diameter-side annular part () and a large collar part () of the inner ring (), an average roller diameter d, a roller length l, and an outer member angle α. The dimensionless number X falls within a range of 0.69<X<1.12.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile