JPS5621770A - Manufacturing method for pivot bearing - Google Patents
Manufacturing method for pivot bearingInfo
- Publication number
- JPS5621770A JPS5621770A JP9449779A JP9449779A JPS5621770A JP S5621770 A JPS5621770 A JP S5621770A JP 9449779 A JP9449779 A JP 9449779A JP 9449779 A JP9449779 A JP 9449779A JP S5621770 A JPS5621770 A JP S5621770A
- Authority
- JP
- Japan
- Prior art keywords
- arrow
- bearing part
- pivot bearing
- manufacturing
- precision
- 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.)
- Granted
Links
Abstract
PURPOSE: To simplify forming a bearing part which is smooth on the surfaces by making holes in a metal material with use of an arrow for header machining of good rounding precision.
CONSTITUTION: An arrow 8 is finished to a surface precision of not greater than 8μ, this arrow 8 is thrusted to one end of a metal material 1 to cave in and form a hole, thereby forming a pivot bearing part 7. In this occasion, since the surface precision of the arrow 8 for head machining is substantially transferred to the surface 7a of the bearing part 7, the surface 7a can be finished into a smooth surface.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9449779A JPS5913935B2 (en) | 1979-07-25 | 1979-07-25 | Manufacturing method for pivot bearings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9449779A JPS5913935B2 (en) | 1979-07-25 | 1979-07-25 | Manufacturing method for pivot bearings |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5621770A true JPS5621770A (en) | 1981-02-28 |
JPS5913935B2 JPS5913935B2 (en) | 1984-04-02 |
Family
ID=14111933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9449779A Expired JPS5913935B2 (en) | 1979-07-25 | 1979-07-25 | Manufacturing method for pivot bearings |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5913935B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62187742A (en) * | 1986-02-13 | 1987-08-17 | Shin Etsu Polymer Co Ltd | Expandable vinyl chloride resin composition |
JPS63125535A (en) * | 1986-11-13 | 1988-05-28 | Kanegafuchi Chem Ind Co Ltd | Extrusion-foamable flexible vinyl chloride resin composition |
-
1979
- 1979-07-25 JP JP9449779A patent/JPS5913935B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62187742A (en) * | 1986-02-13 | 1987-08-17 | Shin Etsu Polymer Co Ltd | Expandable vinyl chloride resin composition |
JPH0528258B2 (en) * | 1986-02-13 | 1993-04-23 | Shinetsu Polymer Co | |
JPS63125535A (en) * | 1986-11-13 | 1988-05-28 | Kanegafuchi Chem Ind Co Ltd | Extrusion-foamable flexible vinyl chloride resin composition |
Also Published As
Publication number | Publication date |
---|---|
JPS5913935B2 (en) | 1984-04-02 |
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