Rolling bearing seal or shield member

Details Rolling bearing seal or shield member Rolling bearing seal or shield member

2003-02-27

2009-06-16

Ridley, Richard W L (Department: 3656)

Bearings

Rotary bearing

Antifriction bearing

C277S456000

Reexamination Certificate

active

07547146

ABSTRACT:
The present invention is to offer such a rolling bearing excellent in the corrosion resistance and suited to the environmental protection. This rolling bearing rotatably holds, via a retainer, a plurality of rolling elements between an inner ring having an inner ring raceway in an outer circumference and an outer ring having an outer ring raceway in an inner circumference, and is sealed with a seal or a shield member covered with a rubber, wherein a core metal of the seal or the shield member is a steel sheet that is covered with a film of 0.2 to 50 μm thickness, the film comprising a metal or an alloy having a smaller oxidation-reduction potential than that of iron, and that is formed with a film comprising an inorganic substance of lithium and silica as an uppermost layer.

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Chinese Office Action dated Jan. 26, 2007.

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