Ball screw, seal material, and seal structure
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United States of America Patent
Stats
-
Nov 8, 2016
Grant Date -
Apr 30, 2015
app pub date -
Dec 9, 2014
filing date -
Jun 22, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A ball screw including: a male component having male grooves on an outer periphery for a ball to roll; a female component fitted together with the male component in an axial direction having female grooves facing the male grooves on an inner periphery for the ball to roll and a circulation path for the ball to circulate; and a seal member at one end, at the other end, or at each of one and the other ends of the female component in the axial direction and including a hole capable of communicating with the inner periphery, a fiber layer having a fitting surface having a convex part capable of being fitted in the male grooves when the male component is inserted into the hole and a surface made of fibers impregnated with rubber or resin, and a rubber or resin layer laminated on a surface opposite to the fitting surface.
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