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:
Jun. 28, 1994
Filed:
Aug. 23, 1993
Kazuyoshi Harimoto, Iwata, JP;
Atsushi Yamashita, Fukuroi, JP;
NTN Corporation, Osaka, JP;
Abstract
A needle roller bearing is directed to avoid a possibility that an inner peripheral surface of a bore in a housing may be ground or scraped by an edge defining a peripheral lip region of an opening in an outer race when a needle roller bearing is to be press-fitted into the bore in the housing and also to eliminate the need to adjust the position of a roller retainer while increasing a physical strength of the roller retainer. For this purpose, the outer race is formed with a first opening having a pair of axially spaced tabs bent so as to incline radially inwardly of the outer race from the remaining portion of the outer race. The roller retainer is in the form of a tubular member having a circumferentially continuous wall formed with a second opening at a location aligned with the first opening in the outer race. The roller retainer has a substantially intermediate portion protruding radially outwardly so as to have an outer diameter greater than that of any one of the opposite ends of the roller retainer.