Roller skate bearing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 16, 1983
Grant Date -
N/A
app pub date -
Jul 13, 1981
filing date -
Jul 13, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An unground ball bearing is manufactured by forming a straight-sided cup shaped outer race having an aperture in the base and a radially inwardly extending flange about the periphery of the cup rim. The outer and inner races are heat treated and subjected to a surface finishing step and the ball bearing is subsequently assembled by inserting the balls within the outer race and then snapping the inner race into position within the outer race by forcing it past the flange on the outer race.
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