WIPER RING AND BALL SCREW MOUNTED IN IT

摘要

PROBLEM TO BE SOLVED: To provide a wiper ring capable of enhancing adhesiveness of a segment to screw shaft. SOLUTION: A wiper ring 20 contains a sealing part 22f accessible to a screw shaft 11 and a plurality of segments 22A-22H mutually formed as different members. Respective segments 22A-22H are disposed in the peripheral direction of the screw shaft 11 in a state rotatable around a pin 22b extending to the direction of the screw shaft 11. Respective pins 22b corresponding to each segments 22A-22H are alternatively joined every one, whereby the relative movement of the mutual pins is restrained. The respective segments 22A-22H arranged in the peripheral direction, are retained by a spring ring 23 to the center side in the radial direction of the screw shaft 11.