Internally geared hub ball pushing unit

Details Internally geared hub ball pushing unit Internally geared hub ball pushing unit

2006-06-07

2008-11-04

Estremsky, Sherry (Department: 3681)

Planetary gear transmission systems or components

Planetary gearing or element

Reexamination Certificate

active

07445577

ABSTRACT:
An internally geared hub ball pushing unit is configured to be mounted on a hub axle such that is less likely to experience a decrease in bearing durability resulting from deformation of the ball pushing surface. The ball pushing unit is provided with an inside member and an outside member. The inside member has a fitting part configured to be fitted onto the hub axle with a sleeve insertion recess disposed on its internal circumferential portion and an externally threaded or splined section disposed on its external circumferential portion. The outside member has a ball pushing surface on its external circumferential portion and an internally threaded or splined section configured to non-rotatably connect to the externally threaded section.

REFERENCES:
patent: 2291485 (1942-07-01), Musselman
patent: 2799872 (1957-07-01), Krahnke
patent: 6988973 (2006-01-01), Steuer
patent: 0-383-350 (1995-06-01), None
patent: 1 249 389 (2002-10-01), None
patent: 2 251 276 (1992-07-01), None
patent: 11 020771 (1999-01-01), None
patent: 2930315 (1999-05-01), None
patent: 3184230 (2001-04-01), None
patent: 31 842302 (2001-07-01), None

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