JPS5733217A - Linear bearing unit - Google Patents
Linear bearing unitInfo
- Publication number
- JPS5733217A JPS5733217A JP9690280A JP9690280A JPS5733217A JP S5733217 A JPS5733217 A JP S5733217A JP 9690280 A JP9690280 A JP 9690280A JP 9690280 A JP9690280 A JP 9690280A JP S5733217 A JPS5733217 A JP S5733217A
- Authority
- JP
- Japan
- Prior art keywords
- grooves
- orbit
- bearing
- ball
- case
- 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
Landscapes
- Bearings For Parts Moving Linearly (AREA)
Abstract
PURPOSE: To dispense with a retainer without deteriorating the performance of a linear bearing, by providing ball orbit grooves and escape holes in the casing of the bearing for the sliding surface of an industrial machine so that the grooves and the holes are located along a loop and by pinch-holding balls between the orbit grooves and other orbit grooves which are provided in an orbit block.
CONSTITUTION: When the case 100 of a bearing is moved forth, load carrying balls 143 pich-held between the orbit grooves 139W142 of an orbit block 138 and those 102W105 of the case 100 are moved together with the case and pushed up into a direction-changing U-shaped recessed 130 by ball guide tongues 134 at side lids 122, 123 and sent into ball holes 109W110. The grooves 139W142, 102W105 are made deep and their cross section is shaped almost as a semicircle. The upper ball contact angle as to a horizontal line extending through the axis of the bearing is set at 45°. The lower ball contact angle as to the horizontal line is set at 15°. According to this constitution, a retainer can be eliminated without deteriorating the performance of the bearing such as its load carrying capacity.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9690280A JPS5733217A (en) | 1980-07-17 | 1980-07-17 | Linear bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9690280A JPS5733217A (en) | 1980-07-17 | 1980-07-17 | Linear bearing unit |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24619585A Division JPS61223325A (en) | 1985-11-05 | 1985-11-05 | Linear bearing unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5733217A true JPS5733217A (en) | 1982-02-23 |
| JPS638328B2 JPS638328B2 (en) | 1988-02-22 |
Family
ID=14177295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9690280A Granted JPS5733217A (en) | 1980-07-17 | 1980-07-17 | Linear bearing unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5733217A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58169221U (en) * | 1982-05-07 | 1983-11-11 | 日本精工株式会社 | track guide bearing |
| US6231238B1 (en) | 1993-03-30 | 2001-05-15 | Thk Co., Ltd. | Linear movement guide apparatus and method for assembling the apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5572912A (en) * | 1978-11-25 | 1980-06-02 | Hiroshi Teramachi | 4-direction equal-load type linear bearing |
-
1980
- 1980-07-17 JP JP9690280A patent/JPS5733217A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5572912A (en) * | 1978-11-25 | 1980-06-02 | Hiroshi Teramachi | 4-direction equal-load type linear bearing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58169221U (en) * | 1982-05-07 | 1983-11-11 | 日本精工株式会社 | track guide bearing |
| JPS628427Y2 (en) * | 1982-05-07 | 1987-02-27 | ||
| US6231238B1 (en) | 1993-03-30 | 2001-05-15 | Thk Co., Ltd. | Linear movement guide apparatus and method for assembling the apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS638328B2 (en) | 1988-02-22 |
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