JPS57149620A - Rectilinear motion ball bearing - Google Patents
Rectilinear motion ball bearingInfo
- Publication number
- JPS57149620A JPS57149620A JP56035816A JP3581681A JPS57149620A JP S57149620 A JPS57149620 A JP S57149620A JP 56035816 A JP56035816 A JP 56035816A JP 3581681 A JP3581681 A JP 3581681A JP S57149620 A JPS57149620 A JP S57149620A
- Authority
- JP
- Japan
- Prior art keywords
- load
- angle
- bearing
- contact
- ball
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
PURPOSE:To apply up-and-down load to a Gothic arch bearing by bringing a truck rail into contact with a rectilinear plane of an orbit mounted on a slide unit and a ball only at a contact point symmetrical about the center line of the ball with a fixed angle. CONSTITUTION:When downward load D is applied to the upper point 10 of contact of a slide unit 2 so that load f1 acts upon a ball 3, load F1 controlling loading capacity of a bearing is determined by an angle B of a normal direction. Load F2 influenced by an angle C of an normal direction acts in the same manner upon upward load f2 at the lower point 11 of contact. If the angle B is below 45 deg., and the angle C is above 45 deg., F1 can be smaller than F2, even if f1 is larger than f2. Accordingly, the downward load capacity of the bearing can be larger than the upward load capacity, and the bearing is reduced to compact size so as to receive every radial load and moment load.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56035816A JPS5848772B2 (en) | 1981-03-12 | 1981-03-12 | linear motion ball bearings |
US06/294,766 US4433876A (en) | 1981-03-12 | 1981-08-20 | Rolling bearing for linear motion |
DE3134313A DE3134313C2 (en) | 1981-03-12 | 1981-08-31 | Rolling bearings for linear movement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56035816A JPS5848772B2 (en) | 1981-03-12 | 1981-03-12 | linear motion ball bearings |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57149620A true JPS57149620A (en) | 1982-09-16 |
JPS5848772B2 JPS5848772B2 (en) | 1983-10-31 |
Family
ID=12452454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56035816A Expired JPS5848772B2 (en) | 1981-03-12 | 1981-03-12 | linear motion ball bearings |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5848772B2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59147918U (en) * | 1983-03-25 | 1984-10-03 | 日本精工株式会社 | Linear guide device |
JPS6026816A (en) * | 1983-07-20 | 1985-02-09 | Ntn Toyo Bearing Co Ltd | Straight operating bearing and its manufacturing method |
JPS63186028A (en) * | 1987-01-26 | 1988-08-01 | Hiroshi Teramachi | Bearing for curvilinear sliding |
JPH0289810A (en) * | 1988-09-26 | 1990-03-29 | Nippon Thompson Co Ltd | Small direct-acting guide unit |
US5190378A (en) * | 1990-09-27 | 1993-03-02 | Nippon Thompson Co., Ltd. | Linear motion rolling contact guide unit having an asymmetrical guide channel |
JPH06280870A (en) * | 1991-01-28 | 1994-10-07 | Hiroshi Teramachi | Curve sliding bearing |
US6792822B2 (en) * | 1993-12-10 | 2004-09-21 | Nsk Ltd, | Ball groove profile of ball screw |
-
1981
- 1981-03-12 JP JP56035816A patent/JPS5848772B2/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59147918U (en) * | 1983-03-25 | 1984-10-03 | 日本精工株式会社 | Linear guide device |
JPS6323612Y2 (en) * | 1983-03-25 | 1988-06-29 | ||
JPS6026816A (en) * | 1983-07-20 | 1985-02-09 | Ntn Toyo Bearing Co Ltd | Straight operating bearing and its manufacturing method |
JPS63186028A (en) * | 1987-01-26 | 1988-08-01 | Hiroshi Teramachi | Bearing for curvilinear sliding |
JPH0289810A (en) * | 1988-09-26 | 1990-03-29 | Nippon Thompson Co Ltd | Small direct-acting guide unit |
US5190378A (en) * | 1990-09-27 | 1993-03-02 | Nippon Thompson Co., Ltd. | Linear motion rolling contact guide unit having an asymmetrical guide channel |
JPH06280870A (en) * | 1991-01-28 | 1994-10-07 | Hiroshi Teramachi | Curve sliding bearing |
US6792822B2 (en) * | 1993-12-10 | 2004-09-21 | Nsk Ltd, | Ball groove profile of ball screw |
Also Published As
Publication number | Publication date |
---|---|
JPS5848772B2 (en) | 1983-10-31 |
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