To provide a slide bearing capable of reducing dispersion of sliding performance.SOLUTION: A slide bearing includes an upper case 2 having an annular recessed portion, a lower case 3 having an annular projecting portion inserted to the annular recessed portion and forming an annular space 5, a center plate 4 mounted on a mounting face 331 of the annular projecting portion, and a dust seal 6 for closing a clearance connected to the annular space 5. The dust seal 6 is formed integrally with the lower case 3, and has an outer seal portion 60 for closing a clearance between an outer peripheral face 333 of the annular projecting portion and an outer peripheral side wall face 250 of the annular recessed portion, an inner seal portion 61 for closing a clearance between an inner peripheral face 334 of the annular projecting portion and an inner peripheral side wall face 251 of the annular recessed portion, and an arm portion 62 connecting the outer seal portion 60 and the inner seal portion 61. The lower case 3 surrounds the mounting face 331, has an annular restriction wall 332 for restricting deformation to a radial outer part of the center plate 4, and a through hole 338 penetrated through the inner peripheral face and the outer peripheral face of the restriction wall 332, and the arm portion 62 of the dust seal 6 is disposed through the penetration hole 338.SELECTED DRAWING: Figure 2
【課題】摺動性能のバラツキを低減可能な滑り軸受を提供する。【解決手段】環状凹部を有するアッパーケース2と、環状凹部に挿入されて環状空間5を形成する環状凸部を有するロワーケース3と、環状凸部の載置面331に載置されたセンタープレート4と、環状空間5に繋がる隙間を塞ぐダストシール6を備える。ダストシール6はロワーケース3と一体形成され、環状凸部の外周面333と環状凹部の外周側壁面250との隙間を塞ぐ外側シール部60と、環状凸部の内周面334と環状凹部の内周側壁面251との隙間を塞ぐ内側シール部61と、外側シール部60と内側シール部61を連結するアーム部62を有する。ロワーケース3は載置面331を囲み、センタープレート4の径方向外方への変形を拘束する環状の拘束壁332と、拘束壁332の内周面および外周面を貫く貫通孔338を有し、ダストシール6のアーム部62は貫通孔338を通るように配置される。【選択図】図2
SLIDE BEARING
滑り軸受
2019-08-22
Patent
Elektronische Ressource
Japanisch