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. 01, 2008
Filed:
Apr. 17, 2003
Toshirou Fukuda, Osaka, JP;
Hideo Ueda, Osaka, JP;
Toshihiro Kawaguchi, Osaka, JP;
Kunihiko Yokota, Osaka, JP;
Motoshi Kawamura, Osaka, JP;
Muneyasu Akiyama, Osaka, JP;
Tomonori Nakashita, Osaka, JP;
Toshirou Fukuda, Osaka, JP;
Hideo Ueda, Osaka, JP;
Toshihiro Kawaguchi, Osaka, JP;
Kunihiko Yokota, Osaka, JP;
Motoshi Kawamura, Osaka, JP;
Muneyasu Akiyama, Osaka, JP;
Tomonori Nakashita, Osaka, JP;
Jtekt Corporation, Osaka, JP;
Abstract
A ball bearing with double raceway rotatably supports a pinion shaft having a pinion gear on its one end. This ball bearing with double raceway is provided with: an outer ring member having a large-diameter raceway surface and a small-diameter raceway surface; an inner ring member having a large-diameter raceway surface and a small-diameter raceway surface that correspond to the large-diameter raceway surface and the small-diameter raceway surface of the outer ring member; a large-diameter-side row of balls that are interpolated between the two large-diameter raceway surfaces; a small-diameter-side row of balls that are interpolated between the two small-diameter raceway surfaces; a large-diameter-side cage that holds the large-diameter-side row of balls; and a small-diameter-side cage that holds the small-diameter-side row of balls. In this ball bearing with double raceway, the row of balls on the anti-pinion gear side of the two rows of balls is subjected to a load prior to the row of balls on the pinion gear side.