Land vehicles: wheels and axles – Axle – Rotary shaft or spindle
Reexamination Certificate
2005-03-22
2005-03-22
Stormer, Russell D. (Department: 3617)
Land vehicles: wheels and axles
Axle
Rotary shaft or spindle
C301S006800, C301S111020, C301S131000, C188S01800A, C279S138000, C403S359200
Reexamination Certificate
active
06869151
ABSTRACT:
A knuckle-supported wheelend assembly includes a shaft having a contoured peripheral surface portion proximate to an outboard end featuring a minimum radius and a maximum radius, and a hub mounted on the shaft's contoured surface portion via a complementary, contoured central bore. The nontapered contoured hub-shaft interface includes a slight twist or jog to reduce backlash and to permit a relative shortening of the length of axial hub-shaft engagement to as little as about 45% of the maximum radius, thereby advantageously reducing scrub radius for a given wheel-tire combination. By eliminating any required taper of the contoured interface, the hub's inboard face firmly abuts the machined face of the inner race of a knuckle-mounted, shaft-supporting bearing assembly to achieve reduced assembly runout. The hub's wheel-mounting face and integral annular friction surfaces are each machined with reference to the inboard hub face to ensure a high degree of parallelism.
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Myers Douglas C.
Simons Karl-Heinz
Wang Hui Hugh
Brinks Hofer Gilson & Lione
Stormer Russell D.
Visteon Global Technologies Inc.
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