Lightweight bearing and wave gear drive

Details Lightweight bearing and wave gear drive Lightweight bearing and wave gear drive

2005-11-29

2005-11-29

Lewis, Tisha (Department: 3681)

Machine element or mechanism

Gearing

Reexamination Certificate

active

06968755

ABSTRACT:
A lightweight bearing and wave gear drive are provided. An outer or inner bearing ring of the bearing has fixing holes to enable the ring to be attached to another member. The parts of the bearing on which raceway surfaces are formed are made of an iron-based material, while the main bearing ring member is formed of a lightweight material that is lighter than the iron-based material. Surface portions that constitute fixing bolt seats are plated to increase the strength of such portions. The wave gear drive includes a rigid internal gear, a flexible external gear located inside the internal gear, and a wave generator located inside the external gear. The internal and external gears are coupled by the lightweight bearing in a way that allows the gears to rotate relative to each other.

REFERENCES:
patent: 5934157 (1999-08-01), Kobayashi et al.
patent: 6026711 (2000-02-01), Tortora et al.
patent: 6622593 (2003-09-01), Kobayashi et al.
patent: 6732435 (2004-05-01), Kiyosawa
patent: 09-250608 (1997-09-01), None
patent: 09-303496 (1997-11-01), None
patent: 2000186718 (2000-07-01), None
Patent Abstracts of Japan for JP09-250608 published on Sep. 22, 1997.
Patent Abstracts of Japan for JP09-303496 published on Nov. 25, 1997.

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