Bearing unit for wheel and manufacturing method thereof

Details Bearing unit for wheel and manufacturing method thereof Bearing unit for wheel and manufacturing method thereof

2005-04-19

2005-04-19

Stormer, Russell D. (Department: 3617)

Land vehicles: wheels and axles

Wheel

Hub

C301S006800, C029S898090, C384S544000

Reexamination Certificate

active

06880898

ABSTRACT:
A bearing unit for a wheel has a rotary ring whose raceway surface is hardened by a thermal process. In this bearing unit, the side surface of a fitting flange for fixedly joining a rotary body for braking and a wheel, is formed by working in a predetermined configuration after the raceway surface of the rotary ring has been subjected to the thermal process. The raceway surface of the rotary ring is worked in a predetermined configuration and dimensions on the basis of the side surface of said fitting flange. This bearing unit can restrain disagreeable noises and vibration from being caused upon braking.

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