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. 20, 2000
Filed:
Aug. 18, 1998
Kouhei Yuasa, Gifu-ken, JP;
Yoshitaka Ogawa, Gifu-ken, JP;
Nippon Thompson Co., Ltd., Tokyo, JP;
Abstract
The present invention relates to a track roller having inner and outer races of a large radial wall thickness, in which an insert hole close to a raceway passage and a rolling element feed hole crossing the insert hole and joined to the raceway passage are formed, whereby the loading of the rolling elements into the raceway passage can be done simply and speedily. In order to load balls which constitute the rolling elements into the raceway passage formed between a raceway groove of the outer race and that of the inner race, the inner race is provided in the portion thereof which is close to the raceway passage with the axially extending insert hole and the rolling element feed hole of a small length extending from an inner surface of the insert hole to the raceway groove of the inner race. The balls are loaded from the insert hole into the raceway grooves via the rolling element feed hole, and a plug is then fitted in the rolling element feed hole. A pin is then inserted through a first pin hole of the inner race and a second pin hole of the plug, whereby the plug is fixed to the inner race.