Compound bearing apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 29, 2003
Grant Date -
Dec 27, 2001
app pub date -
May 30, 2001
filing date -
Jun 19, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A compound bearing apparatus including a shaft, a cylindrical outer ring member surrounding the shaft, and a plurality of balls of the first and the second rows interposed between the shaft and the outer ring member is provided. The bearing apparatus of the present invention is characterized in that: the outer ring member includes upper and lower portions and a central portion therebetween, two rows of outer raceways for the first and the second row of balls are formed on the inner peripheral surface of the upper and lower portions of the outer ring member, a squeeze ring of the same material as that used in making the outer ring member or of any other material of substantially the same factor of linear thermal expansion as that of the outer ring member is press fit around the outer periphery of the central portion of the outer ring member to elastically deform the outer ring member inwardly to form an inwardly protruding squeezed portion.
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