Ball spline
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United States of America Patent
Stats
-
Apr 15, 1986
Grant Date -
N/A
app pub date -
Aug 16, 1984
filing date -
Feb 21, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ball spline having an outer race (10) is provided in a cylindrical inner wall thereof with grooves (11, 11', 12, 12') of a generally semi-circular section. A retainer (20) is provided in both end portions thereof with ball turning grooves (24, 24') for turning balls between grooves for loaded and unloaded balls. Caps (40) are fitted in both end portions of the outer race (10) and are formed with ball turning grooves (41, 41'). The ball turning grooves (24, 24') of the retainer and the ball turning grooves (41, 41') of the return caps conjointly form a ball circulation path.
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