CN201335096Y - Linear motion ball bearing - Google Patents
Linear motion ball bearing Download PDFInfo
- Publication number
- CN201335096Y CN201335096Y CNU2008201805525U CN200820180552U CN201335096Y CN 201335096 Y CN201335096 Y CN 201335096Y CN U2008201805525 U CNU2008201805525 U CN U2008201805525U CN 200820180552 U CN200820180552 U CN 200820180552U CN 201335096 Y CN201335096 Y CN 201335096Y
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- China
- Prior art keywords
- bearing
- ball
- core
- balls
- straight line
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- Expired - Fee Related
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Abstract
The utility model relates to a linear motion ball bearing which comprises a bearing outer sleeve and a plurality of balls. A bearing inner core is arranged in the bearing outer sleeve and adopts a hollow tube body, and a plurality ball holes distributed uniformly are formed on the peripheral wall of the bearing inner core; the balls are respectively mounted in the corresponding ball holes; annular grooves are formed on the inner peripheral walls at two ends of the bearing outer sleeve; and retaining rings are mounted in the annular grooves. The linear motion ball bearing not only has the advantages of simple structure and low manufacture cost, but also can bear a large amount of balls distributed uniformly.
Description
Technical field:
The utility model relates to a kind of bearing, particularly a kind of straight line motion ball bearing.
Background technique:
In the prior art, as Chinese patent 94219998.7 disclosed a kind of straight line motion ball bearings, it is by external bushing, and steel ball retainer and side ring are formed, the inner radial surface of outer lining tackling column radially-outer surface and unique profile, this internal surface establishes concave square slot and steel ball is escaped groove; The steel ball retainer is established steel ball groove and protruding side's bolt, and protruding side's bolt is placed in the concave square slot; The steel ball groove comprises load steel ball groove, non-lotus steel ball groove and turning slot, and the steel ball circle is formed by steel ball; Steel ball enters the turning slot revolution, rises to non-load steel ball groove, is back to load steel ball groove again, forms the steel ball circle, carries out straight line motion.Though this ball bearing can be realized straight line motion,, also there is following deficiency:
The first, in this ball bearing, the external bushing internal surface establishes concave square slot and steel ball is escaped groove, the steel ball retainer is established steel ball groove and protruding side's bolt, and the steel ball groove comprises load steel ball groove, non-lotus steel ball groove and turning slot, its complex structure, produce difficulty, manufacture cost height are installed;
Second, in this ball bearing, steel ball enters the turning slot revolution, rise to non-load steel ball groove, be back to load steel ball groove again, form the steel ball circle, because the existence of non-load steel ball groove and turning slot, taken steel ball retainer surface area greatly, compressed the quantity of load steel ball groove, made that the steel ball of load capacity is fewer simultaneously in the work, skewness, make by the bearing material discontinuity when having increased single steel ball bearing pressure, worn and torn easily that lack working life by bearing material and steel ball contact position.
The model utility content:
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of straight line motion ball bearing is provided, and it is not only simple in structure, cheap for manufacturing cost, and carrying ball quantity many, be evenly distributed.
A kind of straight line motion ball bearing that provides according to the utility model, comprise bearing outside and plurality of balls, be provided with bearing inner-core in the described bearing outside, this bearing inner-core is a hollow body, its perisporium is provided with equally distributed plurality of balls hole, some described balls are installed in respectively in the corresponding ball hole, all have annular groove on the inner circle wall of described bearing outside two ends, and back-up ring all is installed in the annular groove.
The utility model also has following attached technical characteristics:
Some described ball homogeneous ends expose to the bearing inner-core periphery wall and replace with the bearing outside inner circle wall, and the other end exposes to the bearing inner-core inner circle wall.
Be provided with the block that stops the ball landing in the described ball hole.
Described bearing inner-core is made by high-abrasive material.
A kind of straight line motion ball bearing according to the utility model provides has following advantage with respect to prior art:
First, in the utility model, ball is evenly distributed on the perisporium of bearing inner-core, the highest 80% of the bearing inner-core surface area that can be of its minute cloth cover, and can all carry simultaneously, thereby,, wearing and tearing stressed evenly by bearing material surface are reduced, increase the service life, in addition, this bearing especially is fit to be applied in short stroke, the high-frequency linear reciprocating motion.
The second, in the utility model, only on the bearing inner-core perisporium, open equally distributed plurality of balls hole, ball is installed in the ball hole, can realize the straight line motion of ball bearing, it is simple in structure, produces easy for installation, cheap for manufacturing cost.
Description of drawings:
Introduce the utility model in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural representation of the present utility model.
Embodiment:
A kind of straight line motion ball bearing that provides according to the utility model, comprise that if bearing outside 1 reaches in ball 2, be with bearing inner-core 3 on the bearing outside 1, this bearing inner-core 3 is a hollow body, make by high-abrasive material, its perisporium is provided with equally distributed plurality of balls hole 31, its minute, cloth cover was the 30-80% of bearing inner-core 3 surface areas, each ball 2 is installed in the corresponding ball hole 31, ball hole 31 is provided with block 32 in going back, to stop ball 2 landings, all have annular groove 11 on the bearing outside 1 two ends inner circle wall, monarch is equipped with back-up ring 5 in the annular groove 11, bearing inner-core 3 landings when stoping straight line motion, ball 2 homogeneous ends expose to bearing inner-core 3 periphery walls and replace with bearing outside 1 inner circle wall, the other end exposes to bearing inner-core 3 inner circle walls, during use, be placed in bearing inner-core 3 in the carrier bearing, its periphery wall and ball 2 are replaced, when being made straight line motion by reach, because the effect of frictional force, ball 2 is with being rolled on bearing outside 1 inner circle wall by carrier bearing, and then realization straight line motion, because 2 fens the highest 80% of bearing inner-core 3 surface areas that can be of cloth cover of ball, and can all carry simultaneously, thereby, can make by the carrier bearing surface stressed evenly, wearing and tearing reduce, and increase the service life.
The foregoing description is only for the usefulness that the utility model is described; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make various variations and modification; therefore all technological schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by each claim.
Claims (4)
1, a kind of straight line motion ball bearing, comprise bearing outside (1) and plurality of balls (2), it is characterized in that: be provided with bearing inner-core (3) in the described bearing outside (1), this bearing inner-core (3) is a hollow body, its perisporium is provided with equally distributed plurality of balls hole (31), some described balls (2) are installed in respectively in the corresponding ball hole (31), all have annular groove (11) on the inner circle wall of described bearing outside (1) two ends, and back-up ring (5) all is installed in the annular groove (11).
2, a kind of straight line motion ball bearing as claimed in claim 1 is characterized in that: some described balls (2) homogeneous end exposes to bearing inner-core (3) periphery wall and replaces with bearing outside (1) inner circle wall, and the other end exposes to bearing inner-core (3) inner circle wall.
3, a kind of straight line motion ball bearing as claimed in claim 2 is characterized in that: be provided with the block (32) that stops ball (2) landing in the described ball hole (31).
4, a kind of straight line motion ball bearing as claimed in claim 3, it is characterized in that: described bearing inner-core (3) is made by high-abrasive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201805525U CN201335096Y (en) | 2008-12-04 | 2008-12-04 | Linear motion ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201805525U CN201335096Y (en) | 2008-12-04 | 2008-12-04 | Linear motion ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201335096Y true CN201335096Y (en) | 2009-10-28 |
Family
ID=41286747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201805525U Expired - Fee Related CN201335096Y (en) | 2008-12-04 | 2008-12-04 | Linear motion ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201335096Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103154541A (en) * | 2010-07-15 | 2013-06-12 | 托马森工业(有限)公司 | Linear bearing with nested bearing tracks |
| CN105972070A (en) * | 2016-07-13 | 2016-09-28 | 山东钢铁股份有限公司 | Rolling shaft sleeve |
| CN103154541B (en) * | 2010-07-15 | 2016-11-30 | 托马森工业(有限)公司 | Linear bearing with nested supporting track |
| CN110202207A (en) * | 2019-06-17 | 2019-09-06 | 诸暨市众创机械设备厂 | A kind of pipe cutting equipment of the hydraulic engineering with circumgyration incision function |
-
2008
- 2008-12-04 CN CNU2008201805525U patent/CN201335096Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103154541A (en) * | 2010-07-15 | 2013-06-12 | 托马森工业(有限)公司 | Linear bearing with nested bearing tracks |
| CN103154541B (en) * | 2010-07-15 | 2016-11-30 | 托马森工业(有限)公司 | Linear bearing with nested supporting track |
| CN107023562A (en) * | 2010-07-15 | 2017-08-08 | 托马森工业(有限)公司 | Linear motion axis bearing assembly |
| CN105972070A (en) * | 2016-07-13 | 2016-09-28 | 山东钢铁股份有限公司 | Rolling shaft sleeve |
| CN110202207A (en) * | 2019-06-17 | 2019-09-06 | 诸暨市众创机械设备厂 | A kind of pipe cutting equipment of the hydraulic engineering with circumgyration incision function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20151204 |
|
| EXPY | Termination of patent right or utility model |