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:
Apr. 19, 2022
Filed:
Oct. 15, 2020
Ntn Corporation, Osaka, JP;
Kazumasa Seko, Kuwana, JP;
Michio Hori, Kuwana, JP;
Yasuyuki Inoue, Kuwana, JP;
Takashi Yamamoto, Kuwana, JP;
Masaki Nakanishi, Kuwana, JP;
NTN CORPORATION, Osaka, JP;
Abstract
Provided is a double-row self-aligning roller bearing including: an inner ring; an outer ring having a spherical raceway surface; and rollers arranged in two rows and interposed between the inner ring and the outer ring, wherein a ratio of a contact angle θin one row to a contact angle θin the other row falls within a range of 0.25≤θ≤0.5, and a ratio of distance Bin a bearing width direction from an end face of the bearing on a side of the one of the rows to an intersection of two lines of action defining the contact angles of the two rows, relative to a distance Bin the bearing width direction from an end face of the bearing on a side of the other of the rows to the intersection falls within a range of 0.5≤B/B≤0.6.