Compound bearing assembly for swing arm of hand disc drive
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 7, 2000
Grant Date -
N/A
app pub date -
Oct 24, 1996
filing date -
Oct 25, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A compound bearing assembly for a swing arm of a hard disc drive is disclosed, which comprises a stepped shaft 1 having a large-diameter portion and a small-diameter portion 1b, the large-diameter portion 1a having an inner raceway groove 2a directly formed in the outer periphery, a distinct-component outer race ring 3 disposed around the large-diameter portion 1a and having an outer raceway groove 2b formed in the inner periphery, a plurality of balls provided between the inner and outer raceway grooves 2a and 2b, a ball bearing unit 5 having an inner and an outer race ring 5a and 5b and a plurality of balls 6 provided therebetween, the inner race ring 5a being fitted on the small-diameter portion 1b of the stepped shaft, and a sleeve-like spacer 1 between the distinct-component outer race ring 3 and the outer race ring 5b of the ball bearing unit 5 and having opposite end small-diameter portions, on which the outer race rings 3 and 5b are fitted, respectively.
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