JPS60175943U

JPS60175943U - ball screw

Info

Publication number: JPS60175943U
Application number: JP6371784U
Authority: JP
Inventors: 孝彌土肥
Original assignee: 光洋機械工業株式会社
Priority date: 1984-04-30
Filing date: 1984-04-30
Publication date: 1985-11-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は、実施例で軸方向の断面図、第２図は第１図の
Ａ−Ａ矢視て一部破断図。１・・・ねじ軸、２・・・ナツト、３・・・保持器、４
・・・雄ねじ溝、５・・・雌ねじ溝、６・・・ボール。FIG. 1 is an axial cross-sectional view of the embodiment, and FIG. 2 is a partially cutaway view taken along the line A--A in FIG. 1... Screw shaft, 2... Nut, 3... Cage, 4
...Male thread groove, 5...Female thread groove, 6...Ball.

Claims

[Scope of utility model registration request]

(1) A retainer that restrains and holds a ceramic screw shaft having a male thread groove, a ceramic nut having a female screw groove, and a ceramic ball that fits into the opposing thread grooves of the nut and the screw shaft. 1. A ball screw having a retainer, characterized in that the retainer is made of a self-lubricating material.

(2) The scope of the utility model registration claim characterized in that the self-lubricating material used for the cage is a self-lubricating sintered alloy made by sintering molybdenum disulfide or tungsten disulfide with a metal binding material. (1) Ball screw described.

(3) As a self-lubricating material used for the cage, an intermediate layer wave film is applied to the surface of the metal cage by ion-blating a metal whose solubility is higher than that of the material metal of the cage or gold or silver. A ball screw according to claim (1) of the utility model registration, characterized in that a gold or silver surface coating is further formed on the surface of the intermediate layer coating by ion blating.