JPS59185421U

JPS59185421U - Ball bearing for linear movement axis

Info

Publication number: JPS59185421U
Application number: JP8029383U
Authority: JP
Inventors: 野島　暁夫; 蔵品　正人
Original assignee: 株式会社　エイエスケイ
Priority date: 1983-05-30
Filing date: 1983-05-30
Publication date: 1984-12-10

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図は本考案に係る球軸受けの軸方向断面図、第２図
は第１図の■−■断面図、第３図は外筒の゛断面図、第
４図は外筒の側面図、第５図は球保持器の外周面を示す
図、第６図は球保時器の部分破断端面図である。１・・・外筒、２・・・球保持器、３・・・球、４・・
・止めリング、７・・・傾斜面、８・・・内周面、９・
・・凸部、１５・・・保持器部片。Fig. 1 is an axial sectional view of the ball bearing according to the present invention, Fig. 2 is a sectional view taken along the line -■ in Fig. 1, Fig. 3 is a sectional view of the outer cylinder, and Fig. 4 is a side view of the outer cylinder. , FIG. 5 is a view showing the outer circumferential surface of the ball holder, and FIG. 6 is a partially cutaway end view of the ball timer. 1...Outer cylinder, 2...Ball holder, 3...Ball, 4...
・Retaining ring, 7... Inclined surface, 8... Inner peripheral surface, 9.
... Convex portion, 15... Cage piece.

Claims

[Scope of utility model registration request]

(1) In a ball bearing for a linear movement shaft, which has an outer cylinder, a ball holder attached to the outer cylinder, steel balls, and a retaining ring for fixing the ball holder to the outer cylinder, the inner periphery of the outer cylinder Convex portions extending in the axial direction are formed on each surface at regular intervals in the circumferential direction, and both ends of the convex portions in the axial direction are smoothly connected to the inner circumferential surface of both ends of the outer cylinder by inclined surfaces, and the convex portions extend in the axial direction. Both side surfaces of the part are formed as surfaces that are substantially orthogonal to the convex surface, and a spherical shape is formed by parallel linear orbits on the surface of the convex part and on the inner peripheral surface of the outer cylinder, and an arc-shaped orbit connecting the two linear orbits. A ball retainer having a concave portion that fits into the convex portion of the outer cylinder and that fits on the inner circumferential surface of the outer tube corresponds to the number of the convex portions in the circumferential direction. A ball bearing characterized in that it is divided into a number of cage parts.

(2) A linear non-penetrating groove is formed on the higher surface of the stepped outer circumferential surface of the retainer piece, a linear penetrating groove is formed on the lower outer circumferential surface, and an arcuate groove connecting the surface linear grooves. The ball bearing according to claim 1, wherein the ball bearing has a transition portion from a through groove to a non-through groove.

(3) Utility model registration claim 1, characterized in that one of both sides of the retainer piece is formed with a protruding line, and the other side is formed with a concave line that is engageable with the protruding line. The ball bearing according to item 1 or 2.

(4) One or more engaging recesses are formed in the end face of the retainer piece, and a retainer retainer ring having a protrusion that fits into the engaging recess is attached to the retainer end face. A ball bearing according to any one of claims 1 to 3, characterized in that it is a registered utility model.