JPH02117423U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例の縦断面図、第２図
は従来の軸受装置の一例を示す縦断面図である。 ２２はスリーブ、２２Ａはスリーブの下端部の
外径面、２２Ｂはスリーブの他の外径面、２４は
下ドラム（静止部材）、２７は潤滑剤溜り。 FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of an example of a conventional bearing device. 22 is a sleeve, 22A is an outer diameter surface of the lower end of the sleeve, 22B is another outer diameter surface of the sleeve, 24 is a lower drum (stationary member), and 27 is a lubricant reservoir.

Claims (1)

【実用新案登録請求の範囲】 (1) 静止部材に取付けた固定軸にスリーブが嵌
合し、該スリーブは固定軸にスラスト軸受と動圧
形ラジアル軸受とを介して支持される軸受装置に
おいて、前記スリーブの下端部の外径面はスリー
ブの他の箇所の外径面より小径であり、前記スリ
ーブの下端部の外径面は静止部材と半径方向に対
向し、前記スリーブの下端面と静止部材との間の
軸方向すきまに設けた潤滑剤溜りに潤滑剤が存在
することを特徴とする軸受装置。 (2) スリーブの下端部の外径面と静止部材との
間の半径方向すきまは狭いシールすきまである請
求項(1)記載の軸受装置。[Claims for Utility Model Registration] (1) A bearing device in which a sleeve fits onto a fixed shaft attached to a stationary member, and the sleeve is supported by the fixed shaft via a thrust bearing and a hydrodynamic radial bearing, The outer diameter surface of the lower end of the sleeve has a smaller diameter than the outer diameter surface of other parts of the sleeve, and the outer diameter surface of the lower end of the sleeve radially faces the stationary member and is stationary with the lower end surface of the sleeve. A bearing device characterized in that lubricant exists in a lubricant reservoir provided in an axial clearance between the bearing device and the member. (2) The bearing device according to claim (1), wherein the radial clearance between the outer diameter surface of the lower end of the sleeve and the stationary member is a narrow seal clearance.