JPS6449710A - Retainer for guiding ball for direct-acting bearing and manufacture thereof - Google Patents
Retainer for guiding ball for direct-acting bearing and manufacture thereofInfo
- Publication number
- JPS6449710A JPS6449710A JP62203433A JP20343387A JPS6449710A JP S6449710 A JPS6449710 A JP S6449710A JP 62203433 A JP62203433 A JP 62203433A JP 20343387 A JP20343387 A JP 20343387A JP S6449710 A JPS6449710 A JP S6449710A
- Authority
- JP
- Japan
- Prior art keywords
- retainer
- peripheral edge
- window
- ball
- punch
- 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
- Bearings For Parts Moving Linearly (AREA)
- Rolling Contact Bearings (AREA)
Abstract
PURPOSE:To increase hardness of the ball contact part of a retainer, to prevent the drop of a ball, and reduce a cost, by a method wherein a stepped peripheral edge is formed on an oblong window, and in machining of the stepped peripheral edge, a press force is vertically exerted on a steel plate for retaining. CONSTITUTION:In mfr. of a retainer, an oblong window 13 is punched by means of a first punch 8. Subsequently, a surface press work is performed by means of a punch 17 having a shape in cross section slightly larger than the size of the oblong window 13 and formed with a vertical wall surface 17a. Since surface press is effected vertically to a retainer material 1, an excess thickness part 18 is simply squeezed in a finish direction as shown by an arrow mark. Since the excess thickness part is protruded in the oblong window 13 formed in a preceding process, a window forming work is effected again by means of the punch 8. In this way, a stepped part is formed at the peripheral edge of the oblong window 13 with a given size. Since, in formation of a stepped peripheral edge, a press force is vertically exerted on a steel plate for a retainer, work hardening occurs, hardness of the ball contact part of a retainer is increased, and reinforcing treatment is eliminated. Further, since a retainer with a specified groove width is provided, a ball 2 is prevented from a drop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62203433A JPS6449710A (en) | 1987-08-18 | 1987-08-18 | Retainer for guiding ball for direct-acting bearing and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62203433A JPS6449710A (en) | 1987-08-18 | 1987-08-18 | Retainer for guiding ball for direct-acting bearing and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6449710A true JPS6449710A (en) | 1989-02-27 |
Family
ID=16474009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62203433A Pending JPS6449710A (en) | 1987-08-18 | 1987-08-18 | Retainer for guiding ball for direct-acting bearing and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6449710A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0587136A (en) * | 1991-05-13 | 1993-04-06 | T H K Kk | Four-direction equivalent load guide and reciprocating table mechanism |
| JP2006017245A (en) * | 2004-07-02 | 2006-01-19 | Ntn Corp | Thrust roller bearing |
-
1987
- 1987-08-18 JP JP62203433A patent/JPS6449710A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0587136A (en) * | 1991-05-13 | 1993-04-06 | T H K Kk | Four-direction equivalent load guide and reciprocating table mechanism |
| JP2006017245A (en) * | 2004-07-02 | 2006-01-19 | Ntn Corp | Thrust roller bearing |
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