Bearing apparatus of sealing type
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0680687
(2000-10-06)
|
우선권정보 |
JP-0287921 (1999-10-08); JP-0373110 (1999-12-28); JP-0045123 (2000-02-17); JP-0269762 (2000-09-06) |
발명자
/ 주소 |
- Akagami, Kazuo
- Aizawa, Tomoyuki
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
5 |
초록
▼
When an inner race (12) rotates at a speed lower than a predetermined speed, a sealing body (27) contacts the sealingface part (21c), but when the inner race (12) rotates at a speed more than the predetermined speed, a contacting pressure to a sealing face part (21c) is reduced or the sealing body (
When an inner race (12) rotates at a speed lower than a predetermined speed, a sealing body (27) contacts the sealingface part (21c), but when the inner race (12) rotates at a speed more than the predetermined speed, a contacting pressure to a sealing face part (21c) is reduced or the sealing body (27) is isolated so as to form a non-contacting seal, and therefore, for example, at the low speed, the sealing body (27) forms a contacting seal, thereby to compensate a low speed-low sealing ability of the non-contacting seal such as the labyrinth seal, and on the other hand, at high speed rotation, the sealing body (27) reduces the contacting pressure to the sealing face part (21c), and otherwise separates therefrom to form the non-contacting seal as the labyrinth seal, whereby it is possible to solve the problem of heating or abrasion at the contacting part. Further, a sleeve (122) is mounted on the supporting edge (12a) of the inner race (12), thereby to secure the sealing device (120) without processing a screwing hole in the inner race (12). Moreover, the sleeve (122) is optionally processed with a screwing hole (122a), to thereby easily fix the sealing device (120) by the bolt (124).
대표청구항
▼
1. A sealing bearing apparatus comprising: an inner race; an outer race; rolling elements rotatably disposed between the inner race and the outer race; and a sealing device for sealing a space between the inner race and the outer race, the sealing device including: an outer race member; an
1. A sealing bearing apparatus comprising: an inner race; an outer race; rolling elements rotatably disposed between the inner race and the outer race; and a sealing device for sealing a space between the inner race and the outer race, the sealing device including: an outer race member; an inner race member encircled by the outer race and attached to the inner race; and a sealing member furnished between the inner member and the outer member, the sealing member having: a sealing body attached to the inner race member; and a sealing face part disposed on the outer race member, wherein, when the inner race member is rotated at a predetermined speed or lower, the sealing body contacts the sealing face part, and when the inner race member is rotated at a speed more than a predetermined speed, the sealing body reduces the contacting pressure to the sealing face part, or separates from the sealing face part such as to form a non-contacting seal in conjunction with the sealing face part, wherein the inner race member includes a-ring-shaped sleeve, a substantially disk-shaped holder and a core metal, and the sealing body is adhered to the core metal which is press-fitted into the holder. 2. The sealing bearing apparatus as set forth in claim 1, wherein the outer race member is formed with a drain passage. 3. The sealing bearing apparatus as set forth in claim 1, wherein the sealing face part is formed in a cylindrical shape. 4. The sealing bearing apparatus as set forth in claim 1, wherein the sealing body is disposed to at least partially extend in an axial direction of the bearing such as to generate to the sealing body a centrifugal force for reducing the contacting pressure of the sealing body to the sealing face part, when the inner race member is rotated.
이 특허에 인용된 특허 (5)
-
Ernst, Hermann H. F., Centrifugal fluid seal.
-
Symons James D. (Southfield MI) Dershem Ronald J. (Davisburg MI) DeHart Arnold O. (Rochester MI), Low friction dynamic seal assembly with centrifugal deflection.
-
Ebaugh Roger L. (Winsted CT) Rhodes Jerry P. (Avon CT), Multirow roller bearing with seals between the races.
-
Ishiguro Kenji (Toyama JPX), Seal for a rolling bearing with a rotatable outer race.
-
Ikariishi Koichi (Ichichara JPX) Kitano Toshiaki (Higashiosaka JPX) Shinohara Masanori (Kashiwara JPX) Shimoji Yasuo (Kashiwara JPX), Sealed multi-row roller bearing device for rolling mills.
이 특허를 인용한 특허 (3)
-
-
Walter, Wilhelm; Heuberger, Robert; Schaefer, Marc-Andre, Seal arrangement for a tire pressure-regulating device.
-
Dorner, Stefan; Hartmann, Markus; Rehm, Herbert, Shaft bearing seal.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.