Bicycle hub having enhanced strength

Land vehicles: wheels and axles – Wheel – Hub

Reexamination Certificate

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Details

C192S064000, C192S11000B, C384S545000, C384S275000

Reexamination Certificate

active

07740325

ABSTRACT:
A hub for a bicycle includes a shaft, a hub body rotatably mounted on the shaft, a drive seat rotatably mounted on the shaft and engaged with the hub body, and a self-lubricating bearing mounted between the drive seat and the shaft. The self-lubricating bearing has a radially and outwardly extending limit flange rested on the drive seat. Thus, the self-lubricating bearing has an inner wall contacting with an outer wall of the shaft completely and an outer wall contacting with an inner wall of the drive seat completely, so that the external force applied on the self-lubricating bearing is distributed evenly and smoothly to prevent the self-lubricating bearing from being distorted or deformed due to a stress concentration, thereby enhancing the lifetime of the self-lubricating bearing.

REFERENCES:
patent: 2675283 (1954-04-01), Thomson
patent: 4717268 (1988-01-01), Orkin
patent: 4913562 (1990-04-01), Rosen
patent: 5137374 (1992-08-01), Orkin
patent: 5219232 (1993-06-01), Adams et al.
patent: 5398294 (1995-03-01), Narkon
patent: 5820270 (1998-10-01), Richardson
patent: 6260681 (2001-07-01), Chen
patent: 6827497 (2004-12-01), Chen
patent: 6907972 (2005-06-01), Chen
patent: 2007/0199788 (2007-08-01), Chen

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