Final reduction gear device

Details Final reduction gear device Final reduction gear device

2011-08-02

2011-08-02

Lewis, Tisha D (Department: 3655)

Planetary gear transmission systems or components

Differential planetary gearing

With additional gearset between differential output and load

C475S221000

Reexamination Certificate

active

07988583

ABSTRACT:
A final reduction gear device including an orthogonal axis gear and a speed reduction mechanism portion employing a planetary gear is provided. A radial bearing, more specifically a cylindrical roller bearing, having a large radial load capacity is disposed between a bevel ring gear of the orthogonal axis gear and a differential case. A thrust bearing, more specifically a thrust ball bearing or a thrust roller bearing, having a large axial load capacity is disposed between an axial end portion of a sun gear, and an inner race side of the radial bearing and the side of a fitting portion of the differential case, to which the inner race is fitted. A thrust bearing, more specifically a thrust ball bearing or a thrust roller bearing, having a large axial load capacity is disposed between the bevel ring gear and a planetary carrier of the speed reduction mechanism portion.

REFERENCES:
patent: 4541503 (1985-09-01), Akutagawa et al.
patent: 4817753 (1989-04-01), Hiketa
patent: 5695426 (1997-12-01), Lippitsch
patent: 64-006548 (1989-01-01), None
patent: 2007-040339 (2007-02-01), None

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