JPS5554719A - Sealing device of rotary shaft - Google Patents
Sealing device of rotary shaftInfo
- Publication number
- JPS5554719A JPS5554719A JP12701878A JP12701878A JPS5554719A JP S5554719 A JPS5554719 A JP S5554719A JP 12701878 A JP12701878 A JP 12701878A JP 12701878 A JP12701878 A JP 12701878A JP S5554719 A JPS5554719 A JP S5554719A
- Authority
- JP
- Japan
- Prior art keywords
- ball bearing
- races
- rotary shaft
- sealing device
- spacer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Sealing Devices (AREA)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
PURPOSE: To keep a sealing member free from the pressure fluctuation of pressure fluid, by reducing a clearance between inter and outer races of a ball bearing.
CONSTITUTION: A spacer 23, inserted between outer and inner races 21, 22 of a ball bearing 20, has holes for controlling the position of balls to play an additional role as a holder of the ball bearing. The difference between the clearance t1 of both races 21, 22 and the thickness t2 of the spacer 23 is very small. This gap t1-t2/2 is designed to reduce the pressure fluctuation produced in an annular groove 38 of the bearing 20 by throttling the passage, thus substantially eliminating the adverse effect of fluctuation on a Y-packing 14.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12701878A JPS5554719A (en) | 1978-10-16 | 1978-10-16 | Sealing device of rotary shaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12701878A JPS5554719A (en) | 1978-10-16 | 1978-10-16 | Sealing device of rotary shaft |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5554719A true JPS5554719A (en) | 1980-04-22 |
Family
ID=14949644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12701878A Pending JPS5554719A (en) | 1978-10-16 | 1978-10-16 | Sealing device of rotary shaft |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5554719A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4647077A (en) * | 1984-12-17 | 1987-03-03 | Sofec, Inc. | High pressure product swivel |
CN107795692A (en) * | 2017-10-31 | 2018-03-13 | 凯迈(洛阳)机电有限公司 | A kind of electric eddy current dynamometer bearing seal structure of thin oil lubricant |
-
1978
- 1978-10-16 JP JP12701878A patent/JPS5554719A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4647077A (en) * | 1984-12-17 | 1987-03-03 | Sofec, Inc. | High pressure product swivel |
CN107795692A (en) * | 2017-10-31 | 2018-03-13 | 凯迈(洛阳)机电有限公司 | A kind of electric eddy current dynamometer bearing seal structure of thin oil lubricant |
CN107795692B (en) * | 2017-10-31 | 2019-08-23 | 凯迈(洛阳)机电有限公司 | A kind of electric eddy current dynamometer bearing seal structure of thin oil lubricant |
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