JPH0335320U

JPH0335320U -

Info

Publication number: JPH0335320U
Application number: JP9528289U
Authority: JP
Priority date: 1989-08-11
Filing date: 1989-08-11
Publication date: 1991-04-05
Anticipated expiration: 2004-08-11
Also published as: JPH0738736Y2

Description

[Brief explanation of drawings]

第１図は本考案の実施例に係るセンタリングブ
ツシユの半裁断面図、第２図は本考案の他の実施
例に係るセンタリングブツシユの半裁断面図、第
３図は従来例に係るセンタリングブツシユの断面
図である。１……アウタースリーブ、１ａ……段部、２，
３……中間スリーブ、４……スペーサリング、４
ａ……凹状球面、５……インナースリーブ、５ａ
……摺接突起、５ｂ……凸状球面、６，７……ゴ
ム状弾性体、８，９……環状空間、１０……キヤ
ツプ、１１……シールリツプ、１２……連通孔。 FIG. 1 is a half-cut sectional view of a centering bush according to an embodiment of the present invention, FIG. 2 is a half-cut sectional view of a centering bush according to another embodiment of the present invention, and FIG. 3 is a half-cut sectional view of a centering bush according to a conventional example. FIG. 1...Outer sleeve, 1a...Stepped portion, 2,
3... Intermediate sleeve, 4... Spacer ring, 4
a... Concave spherical surface, 5... Inner sleeve, 5a
... Sliding projection, 5b ... Convex spherical surface, 6, 7 ... Rubber-like elastic body, 8, 9 ... Annular space, 10 ... Cap, 11 ... Seal lip, 12 ... Communication hole.

Claims

[Claims for Utility Model Registration] (1) In a centering bush that ensures concentric accuracy of two shafts, an outer sleeve 1 is fixed concentrically to one shaft, and an outer sleeve 1 is provided on the inner circumferential side of the outer sleeve 1. two intermediate sleeves 2 and 3 that are fitted and arranged axially apart from each other; and two intermediate sleeves that are fitted on the inner peripheral side of the outer sleeve 1 and
A spacer ring 4 disposed between the intermediate sleeves 2 and 3 of the book, an inner sleeve 5 that is on the inner periphery of the spacer ring 4 and through which the other shaft is slidably inserted; annular rubber-like elastic bodies 6 and 7 connected to each other and the inner sleeve 5;
A convex spherical surface 5b that slidably contacts the inner circumferential surface of the spacer ring 4 is formed on the outer circumferential surface of the spacer ring 4, the inner sleeve 5, and either one of the spacer ring 4, the inner sleeve 5, and the inner circumferential side of the spacer ring 4. Two annular spaces 8, 9 surrounded by rubber-like elastic bodies 6, 7
A centering button that is characterized by the following: 2. The centering bush according to item 1, wherein a concave spherical surface 4a corresponding to the convex spherical surface 5b of the inner sleeve 5 is formed on the inner peripheral surface of the spacer ring 4. 3. The centering bush according to item 1, wherein the annular spaces 8 and 9 are filled with grease. 4. The centering bush according to item 3, wherein the inner sleeve 5 is provided with a communication hole 12 for guiding the grease to the inner circumferential side of the inner sleeve 5.