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. 03, 2012
Filed:
Sep. 26, 2008
Isao Hirota, Tochigi, JP;
Masahiko Asahi, Tochigi, JP;
Motoyuki Sakurai, Tochigi, JP;
GKN Driveline Torque Technology KK, Tochigi, JP;
Abstract
A differential gear has a simple structure, is able to produce a difference of differential limiting force between a driving operation of a vehicle in which the differential gear is installed and a coasting operation of the vehicle, secures the strength of a thrust bearing adopted for the differential gear, and provides a stabilized differential limiting force, in the driving operation, helical side gears receive thrusting forces acting away from each other, the differential case has inward support faces to axially support the helical side gears, the helical side gear has an annular inward counter face and an annular outward counter face on the inner circumferential side of opposite ends of a teeth area, and between the inward counter faces, there is a thrust bearing having a plurality of circumferentially arranged rollers.