JP2010019340A5

JP2010019340A5 -

Info

Publication number: JP2010019340A5
Application number: JP2008180264A
Authority: JP
Filing date: 2008-07-10
Publication date: 2012-06-28
Anticipated expiration: 2028-07-10

Description

本発明に係る車軸用軸受装置は、車輪が取付けられるフランジ及び円筒部からなるハブシャフトと、内輪、外輪及びこれら内輪と外輪との間に配設された転動体を有し、前記内輪と外輪との間に形成された環状開口部に第１のシール部材が装着され、前記ハブシャフトの円筒部に装着された軸受部とを備え、前記軸受部のインナ側に、芯金と該芯金に取付けられたシール材とを有し、前記第１のシール部材のインナ側を覆う第２のシール部材を設け、前記第２のシール部材は、前記外輪に嵌合する円筒状の嵌合部、該嵌合部からインナ側に延設されインナ側端部に外径側に突出するフランジ部が形成されたシールド部、前記フランジ部から前記シールド部の内周面に沿って折り返えされたのち中心部に向って折り曲げられ、中心部に貫通穴が設けられた中壁からなる芯金と、前記芯金の中壁の貫通穴の内周縁に取付けられたリップを有する円環状のシール材とからなるものである。 An axle bearing device according to the present invention includes a hub shaft including a flange and a cylindrical portion to which a wheel is attached, an inner ring, an outer ring, and rolling elements disposed between the inner ring and the outer ring, and the inner ring and the outer ring. A first seal member is mounted in an annular opening formed between the shaft and a bearing portion mounted on the cylindrical portion of the hub shaft, and a cored bar and the cored bar are disposed on the inner side of the bearing unit. A second sealing member that covers the inner side of the first sealing member, and the second sealing member is a cylindrical fitting portion that fits into the outer ring. A shield portion extending from the fitting portion toward the inner side and having a flange portion projecting to the outer diameter side at the inner side end portion; folded from the flange portion along the inner peripheral surface of the shield portion; Afterwards, it is bent toward the center and a through hole is in the center. A core metal comprising a wall in which kicked, is made of an annular sealing member having a lip attached to the inner peripheral edge of the through-hole of the wall in said metal core.

また、本発明に係る車軸用軸受装置は、車輪が取付けられるフランジを有する外輪と、前記外輪内に転動体を介して配設された内輪と、前記外輪と内輪との間に形成された環状開口部に装着された第１のシール部材とを備え、前記外輪のインナ側に、芯金と該芯金に取付けられたシール材を有し、前記第１のシール部材のインナ側を覆う第２のシール部材を設け、前記第２のシール部材は、前記外輪に嵌合する円筒状の嵌合部、該嵌合部からインナ側に延設されインナ側端部に外径側に突出するフランジ部が形成されたシールド部、前記フランジ部から前記シールド部の内周面に沿って折り返えされたのち中心部に向って折り曲げられ、中心部に貫通穴が設けられた中壁からなる芯金と、前記芯金の中壁の貫通穴の内周縁に取付けられたリップを有する円環状のシール材とからなるものである。 The axle bearing device according to the present invention includes an outer ring having a flange to which a wheel is attached, an inner ring disposed in the outer ring via a rolling element, and an annular formed between the outer ring and the inner ring. A first seal member attached to the opening, and having a metal core and a seal member attached to the metal core on the inner side of the outer ring, and covering the inner side of the first seal member 2 is provided . The second seal member is a cylindrical fitting portion that is fitted to the outer ring, extends from the fitting portion to the inner side, and projects to the inner side end portion to the outer diameter side. A shield part formed with a flange part, and an inner wall that is folded back from the flange part along the inner peripheral surface of the shield part and then bent toward the center part and is provided with a through hole in the center part. A metal core and a lip attached to the inner periphery of the through hole in the inner wall of the metal core It is made of an annular sealing member having a.

Claims

An annular opening formed between the inner ring and the outer ring, having a hub shaft comprising a flange and a cylindrical part to which the wheel is attached, an inner ring, an outer ring, and rolling elements disposed between the inner ring and the outer ring. A first seal member is mounted, and a bearing portion is mounted on the cylindrical portion of the hub shaft,
On the inner side of the bearing portion, there is provided a second sealing member that has a cored bar and a sealing material attached to the cored bar and covers the inner side of the first sealing member ,
The second seal member is a shield in which a cylindrical fitting portion that fits into the outer ring, and a flange portion that extends from the fitting portion toward the inner side and protrudes toward the outer diameter side at the inner side end portion. A cored bar comprising an inner wall that is folded back from the flange part along the inner peripheral surface of the shield part and then bent toward the central part, and a through hole is provided in the central part, and the cored bar An axle bearing device comprising: an annular seal member having a lip attached to an inner peripheral edge of a through hole in an inner wall .

An outer ring having a flange to which a wheel is attached; an inner ring disposed in the outer ring via a rolling element; and a first seal member attached to an annular opening formed between the outer ring and the inner ring. With
On the inner side of the outer ring, a core metal and a seal member attached to the core metal are provided , and a second seal member that covers the inner side of the first seal member is provided ,
The second seal member is a shield in which a cylindrical fitting portion that fits into the outer ring, and a flange portion that extends from the fitting portion toward the inner side and protrudes toward the outer diameter side at the inner side end portion. A cored bar comprising an inner wall that is folded back from the flange part along the inner peripheral surface of the shield part and then bent toward the central part, and a through hole is provided in the central part, and the cored bar An axle bearing device comprising: an annular seal member having a lip attached to an inner peripheral edge of a through hole in an inner wall .