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Patent Searching and Data


Title:
FINAL SPEED REDUCING GEAR
Document Type and Number:
Japanese Patent JP2004360880
Kind Code:
A
Abstract:

To provide a final speed reducing gear capable of enhancing the fuel economy by using low-torque bearings in lieu of tapered roller bearings and precluding a drop in its lifetime and an increase in the costs.

The final speed reducing gear includes a final gear device A having a pair of tapered roller bearings 11 and a differential gear device B having a pair of tapered roller bearings 11, in which at least one of the tapered roller bearings is structured so that its major end face of each tapered roller is formed as a convex curved surface continued to the taper surface and a large flange surface of the inner ring is formed as a concave curved surface so as to mate with the convex curved surface.


Inventors:
UENO HIROSHI
Application Number:
JP2003000163374
Publication Date:
December 24, 2004
Filing Date:
June 09, 2003
Export Citation:
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Assignee:
KOYO SEIKO CO
International Classes:
F16H48/08; F16C19/36; F16C33/36; F16C33/58; F16H48/38; F16H57/021; F16H57/037; F16H57/038; F16H57/039; (IPC1-7): F16C19/36; F16C33/36; F16C33/58; F16H48/08; F16H57/02
Attorney, Agent or Firm:
日比 紀彦
岸本 瑛之助
渡邊 彰
清末 康子