JPH0448414U

JPH0448414U -

Info

Publication number: JPH0448414U
Application number: JP8982590U
Authority: JP
Priority date: 1990-08-27
Filing date: 1990-08-27
Publication date: 1992-04-24

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例の要部の断面図、
第２図及び第３図は他の実施例の要部の断面略図
、第４図は従来例の要部の断面図である。１……軸、２，１２，２２……スリーブ、３，
６……溝、４，１４……ラジアル動圧発生部、５
……球面部、６……溝、７……凹部、８……球面
状動圧発生部、１２ａ，２２ａ……内周面。 FIG. 1 is a sectional view of the main parts of an embodiment of this invention.
2 and 3 are schematic cross-sectional views of main parts of another embodiment, and FIG. 4 is a cross-sectional view of main parts of a conventional example. 1...Shaft, 2, 12, 22...Sleeve, 3,
6... Groove, 4, 14... Radial dynamic pressure generating part, 5
... Spherical surface portion, 6 ... Groove, 7 ... Concave portion, 8 ... Spherical dynamic pressure generating portion, 12a, 22a ... Inner peripheral surface.

Claims

[Claims for Utility Model Registration] At least one of a spherical part provided at the end of the shaft housed in the sleeve, or a spherical recess provided inside the end of the sleeve to face the spherical part. a spherical dynamic pressure generating portion provided with a groove for generating dynamic pressure; and a radial actuator comprising a groove for generating dynamic pressure provided on at least one of the substantially cylindrical inner circumferential surface of the sleeve or the outer circumferential surface of the shaft. What is claimed is: 1. A dynamic pressure bearing having a pressure generating section, characterized in that the inner diameter of the sleeve is formed in a tapered shape that gradually increases as it moves away from the spherical dynamic pressure section.