CN110131310A - A kind of temperature variation resistant low abrasion self-lubricating linear bearing - Google Patents
A kind of temperature variation resistant low abrasion self-lubricating linear bearing Download PDFInfo
- Publication number
- CN110131310A CN110131310A CN201910430176.3A CN201910430176A CN110131310A CN 110131310 A CN110131310 A CN 110131310A CN 201910430176 A CN201910430176 A CN 201910430176A CN 110131310 A CN110131310 A CN 110131310A
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- CN
- China
- Prior art keywords
- bracket
- bearing
- ball
- wall
- bearing race
- 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.)
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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
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
Abstract
The present invention discloses a kind of temperature variation resistant low abrasion self-lubricating linear bearing, including guiding axis, bearing race and ball one, bearing race is set in the periphery of guiding axis, its side wall is equipped with several circular holes, ball one is rollably set in circular hole, the periphery of bearing race is equipped with the fixing sleeve that several elastic pressuring plates are at least formed at circular hole, and elastic pressuring plate can be in contact with ball one；The inner surface of the inner wall of bearing race, the hole wall of circular hole and elastic pressuring plate is equipped with lubricant layer.The invention has the benefit that different temperature changing environments can be suitable for, there is self-lubricating low abrasion characteristic, extend bearing life, detachable setting effective fixed and that realize connecting flange of the bearing on guiding axis can also be realized on this basis, increase the use scope of linear bearing.
Description
Technical field
The invention belongs to mechanical connecting element technical fields, and in particular to a kind of temperature variation resistant low abrasion self-lubricating linear axis
It holds.
Background technique
Linear motion bearing is a kind of linear motion system with low cost production, is cooperated for unlimited stroke and guiding axis
It uses.The structure of linear bearing is mainly included in the retainer installed within outer ring, can be rolled on retainer equipped with multiple
Steel ball is moved by the Infinite Cyclic of the scrolling realization rectilinear direction of steel ball.The both ends of retainer are carried out using inner spring retaining ring
It is fixed, notch window is equipped in the rectilinear orbit side of each steel ball stress work.This part is to make steel ball and guiding axis loaded
It is in rolling contact, is made a relative move with low-down coefficient of friction, therefore linear motion bearing is mechanical equipment, automation is set
The bearing of the most suitable selection such as standby, energy-saving equipment.
Application No. is the patents of " CN201210256045.6 " to be related to a kind of linear bearing, and the technical solution disclosed can
The adverse effect for avoiding ball from not rolling and generating, reducing friction resistance improve and use smoothness.But this linear bearing is still
So there are some problems.Current most of linear bearing including above-mentioned linear bearing connects not tight under wide temperature range
It is close, the bearing that specification has slightly deviation is needed replacing thus, and application range is relatively simple, and the friction of ball and retainer causes to roll
Bead mill damage, and ball lubricating system is relatively complicated, can not achieve self-lubricating, use cost is high, and bearing service life is short.Except this it
Outside, linear bearing is also easy to that undue wear, and the connecting flange on linear bearing occurs in the position that connecting flange acts on
It is easy to happen the case where connection loosens.
Summary of the invention
It is an object of the invention to overcome deficiency in the prior art, a kind of wide temperature range self-lubricating linear bearing, energy are provided
Enough it is suitable for different temperature changing environments, there is self-lubricating low abrasion characteristic, extends bearing life, can also realize on this basis
Detachable setting effective fixed and that realize connecting flange of the bearing on guiding axis, increase linear bearing uses model
It encloses.
To solve prior art problem, the invention discloses a kind of temperature variation resistant low abrasion self-lubricating linear bearings, including lead
To axis, bearing race and ball one, bearing race is set in the periphery of guiding axis, and side wall is equipped with several circular holes, can roll in circular hole
Ball one is arranged in ground, and the periphery of bearing race is equipped with the fixing sleeve that several elastic pressuring plates are at least formed at circular hole, elastic pressuring plate energy
It is enough to be in contact with ball one；The inner surface of the inner wall of bearing race, the hole wall of circular hole and elastic pressuring plate is equipped with lubricant layer.
Further, arranged in groups, every group of circular hole are circumferentially evenly distributed in the axial direction for the circular hole on bearing race；Bearing race
Outer peripheral surface be equipped with the damping ring for preventing the vibration of ball one in every group of circular hole from transmitting by fixing sleeve, damping ring and fixing sleeve
It is in contact.
Further, lubricant layer one phase set by the inner surface of the inner wall of bearing race, the hole wall of circular hole and elastic pressuring plate
Even.
Further, one end of bearing race is additionally provided with slfactuating latch；Slfactuating latch includes being socketed in bearing along axial direction
The bracket one and bracket two on outer peripheral surface are enclosed, bracket one and bracket two are connected by screw thread with bearing race, bracket one and bracket
Two are connected by screw thread, and elastomeric pad is equipped between bracket one and the two adjacent ends of bracket.
Further, bracket one is equipped with connecting flange one, and bracket two is equipped with connecting flange two, connecting flange one and company
Acting flange two is connected.
Further, connecting flange one is rotatably installed on bracket one by bearing one, and connecting flange two passes through bearing two
It is rotatably installed on bracket two.
Further, the inner wall of the inner wall of bracket one and bracket two is equipped with internal screw thread, and the end of bracket one is additionally provided with company
Female connector, the inner wall of connector sleeve are equipped with internal screw thread, what one end of bearing race matched equipped with the internal screw thread with bracket one and bracket two
External screw thread, bracket two are equipped with the external screw thread to match with the internal screw thread of connector sleeve close to one end of bracket one.
Further, slfactuating latch abuts against in the axial direction with fixing sleeve.
Further, the inner wall of one end equipped with slfactuating latch of bearing race is equipped with several ball grooves to extend internally,
Several balls two are equipped in ball grooves, the outer end of ball grooves is equipped with retaining ring.
Further, the cell wall of ball grooves is equipped with lubricant layer.
The invention has the benefit that
1. by the present invention in that force in ball with elastic pressuring plate, effectively prevent under different temperatures since bearing expands with heat and contract with cold and
Caused by structure connect untight situation, realize the operating condition being applied under various temperature under the premise of being changed without bearing
Purpose increases the diversity of application.
2. the setting of lubricant layer in the present invention reduces abrasion caused by ball rotation, realizes the self-lubricating function of bearing
Can, and lubricant layer is easily changed, and reduces use cost, further improves the service life of bearing.
3. the setting of damping ring in the present invention weakens ball vibration caused by bearing race during running at high speed
It is dynamic, improve linear bearing run stability.
4. the setting of ball two in the present invention effectively avoids connecting flange and makees the linear bearing of use in stress effect
Under the case where being easy to happen damage, effectively increase the bearing capacity of linear bearing.
5. the setting of roller bearing in the present invention, may be implemented the relative rotation of connecting flange and linear bearing, extends
The setting angle of connecting flange, to increase the use scope of linear bearing, roller bearing can also replace other types of axis
It holds, to adapt to the requirement of different operating conditions.
6. the setting of slfactuating latch of the present invention can be realized self-locking without additionally increasing other structures, simplify whole
Body structure reduces installation difficulty and cost, thus easy to use to save space.The wherein setting of elastomeric pad, can be with
Certain pressing force is provided to engagement screw thread after bracket one, bracket two, the engagement of the two screw thread, keeps screw thread engagement even closer,
To make slfactuating latch preferably reach locking effect
7. the setting of dismountable flange in the present invention may be implemented the replacement requirement of different model flange, increase linear bearing
Use scope and working condition requirement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of first preferred embodiment of the invention；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
Fig. 3 is the structural perspective of Fig. 1 middle (center) bearing circle；
Fig. 4 is the structure sectional view of connecting flange in Fig. 1.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
Embodiment one
As shown in Figures 1 to 4, a kind of temperature variation resistant low abrasion self-lubricating linear bearing, including guiding axis 1, bearing race 2 and ball 1,
Bearing race 2 is set in the periphery of guiding axis 1, and side wall is equipped with the circular hole 6 that several groups are equidistantly arranged along axial direction, every group of circular hole 6
It is again circumferentially evenly distributed, it is preferable that be equipped with six groups in the axial direction, every group of three circular holes 6.It is rollably set in each circular hole 6
Ball 1 is set, the surface of ball 1 is in contact so as to form rolling between bearing race 2 and guiding axis 1 with the outer peripheral surface of guiding axis 1
Dynamic connection.The periphery of bearing race 2 is equipped with fixing sleeve 4, and fixing sleeve 4 at least forms several elastic pressuring plates 5, this implementation at circular hole 6
In example, fixing sleeve 4 and elastic pressuring plate 5 are integrally formed, and fixing sleeve 4 can be covered on the outer peripheral surface of bearing race 2 in the form of coating
On.
Elastic pressuring plate 5 can be in contact with ball 1, and so that ball 1 is close to guiding axis 1 under the effect of its elastic force
Outer peripheral surface.It is concordant with fixing sleeve 4 when elastic pressuring plate 5 does not stress, ball 1 is compressed when work.When the temperature is changed, elastic pressuring plate
5 can adjust the pressure to ball 1 with the heat expansion or shrinkage of ball 1, guarantee that ball 1 is adjacent to guiding axis 1.Bearing race
The inner surface of 2 inner wall, the hole wall of circular hole 6 and elastic pressuring plate 5 is equipped with lubricant layer 7, and the material of lubricant layer 7 is polytetrafluoroethyl-ne
Alkene, coefficient of friction is extremely low, can play splendid self-lubricating function.By lubricant layer 7 reduce bearing race 2 and guiding axis 1 it
Between coefficient of friction, reduce the coefficient of friction between circular hole 6 and ball 1, and reduce between elastic pressuring plate 5 and ball 1
Coefficient of friction prolong the service life to reduce the abrasion condition of above-mentioned component at the time of contact.
Since circular hole 6 is distributed in axial and circumferential, ball 1 is also arranged according to the arrangement mode.?
In the rolling process of ball 1, vibration can be generated to bearing race 2 by rolling, this effect of vibration can also be carried out by fixing sleeve 4
Transmitting, so that vibration of the entire bearing race 2 all by ball 1 be made to be influenced, and brings biggish motion artifacts.For this purpose, axis
The outer peripheral surface for holding circle 2 is equipped with several annular grooves 21, and annular groove 21 is set to the side of every group of circular hole 6, is equipped with damping ring 3 in annular groove 21, subtracts
The material that vibration circle 3 uses is butyl rubber.Damping ring 3 contacts setting with bearing race 2 and fixing sleeve 4, and damping ring 3 can make solid
Surely the vibration between set 4 and bearing race 2 is weakened, but also the vibration diffusion of the ball 1 in every group of circular hole 6 can be made to pass
Other groups of 6 positions of circular hole are delivered to, so that the vibration of linear bearing entirety be made to be reduced, running noises are also weakened.
Lubricant layer 7 can be integrally formed and be made, i.e. the inner surface of the inner wall of bearing race 2, the hole wall of circular hole 6 and elastic pressuring plate 5
Set lubricant layer 7 is integrally connected.In this way, which the replacement of lubricant layer 7 becomes more convenient, the difficulty of later maintenance is reduced
And cost.
One end of bearing race 2 is additionally provided with slfactuating latch, and slfactuating latch includes that 2 outer peripheral surface of bearing race is socketed in along axial direction
On bracket 1 and bracket 2 17, bracket 1 is located at more inner position, the inner wall and branch of bracket 1 relative to bracket 2 17
The inner wall of frame 2 17 is equipped with internal screw thread, and the end of bracket 1 is additionally provided with connector sleeve 20, and 20 internal diameter of connector sleeve is greater than bracket 1
The outer diameter of other positions, the equally outer diameter also greater than bracket 2 17, consequently facilitating the connection with bracket 2 17.Connector sleeve 20 it is interior
Wall is equipped with internal screw thread, is used to install one end of slfactuating latch on bearing race 2 equipped with the internal screw thread with bracket 1 and bracket 2 17
The external screw thread to match, so that bracket 1 and bracket 2 17 be enable to be sequentially arranged on bearing race 2.Bracket 2 17 is close to branch
One end of frame 1 is equipped with the external screw thread to match with the internal screw thread of connector sleeve.Bracket 1 and bracket 2 17 are installed to bearing race 2
While upper, the internal screw thread of connector sleeve 20 is also connected with the end external screw thread of bracket 2 17, and connect in connector sleeve 20 with close
Elastomeric pad 16 is set between the end of the bracket 2 17 of set 20, by being threadedly coupled at above-mentioned three and elastomeric pad 16 to prop up
Frame 1 and bracket 2 17 can be firmly mounted on bearing race 2, avoid loosening.In the prior art, only pass through on bearing race 2
It is threadedly coupled bracket, easily causes loosening for bearing race 2 and bracket, to influence being connected firmly for linear bearing and other components
Property.
Since above-mentioned slfactuating latch is capable of providing firm connection, bracket 1 is equipped with connecting flange 1, branch
Frame 2 17 is equipped with connecting flange 2 14, and connecting flange 1 is connected with connecting flange 2 14.Connecting flange 1 and connection method
It is equipped with the connecting hole 13 that the fastener hole 12 for docking two flanges connects other components with for connecting flange on orchid 2 14,
Two connecting flanges are bolted in fastener hole 12.It is in office convenient for connecting flange in order to expand the setting angle of connecting flange
The connection with other components is completed in meaning position, and two connecting flanges can be rotated circumferentially, and specifically, connecting flange 1 passes through
Bearing 1 is rotatably installed on bracket 1 by inside, and connecting flange 2 14 is rotatably installed in branch by outside by bearing 2 16
On frame 2 17.Preferably, bearing inner race and bracket are interference fitted, and connecting flange and bearing outer ring are interference fitted.This bilateral method
Blue and double-sided bearings set-up modes, can be improved the bearing capacity of flange.Bearing 1 and bearing 2 16 can be Roller Shaft
It holds, can also be any bearing for being capable of providing rotation connection such as deep groove ball bearing.It is fixed since bracket 1 is more inner
One end of set 4 is directly connected to the end of bracket 1 and fixes to be formed in the axial direction.
Since the purpose of bracket 1 and bracket 2 17 is to connect connecting flange 1 and connecting flange 2 14,
Connecting flange 1 and connecting flange 2 14 can generate biggish active force to bearing race 2 after connecting external component, in order to prevent
This active force deforms bearing race 2, therefore position increases support at this of guiding axis 1.Specifically, bearing race 2 is equipped with
The inner wall of one end of slfactuating latch be equipped with several ball grooves 22 to extend internally, it is preferable that ball grooves 22 axially extend and
There are six being circumferentially uniformly distributed.Several balls two that can be in rolling contact with the outer peripheral surface of guiding axis 1 are equipped in ball grooves 22
18, the outer ends of ball grooves 22 is equipped with retaining ring 19, and retaining ring 19 can be fixed in bearing race 2 by way of tight fit, can also be with
Axial limiting is formed to retaining ring 19 in radially extending for the end by bracket 2 17.Bearing at this may be implemented by ball 2 18
Circle 2 is connect with the rolling of guiding axis 1, can also realize support of the guiding axis 1 to bearing race 2.The cell wall of ball grooves is equipped with lubrication
Layer 7.
Embodiment two
The difference is that, in the present embodiment, fixing sleeve 4 is split type structure, i.e. a bearing race 2 is equipped with embodiment one
Multiple fixing sleeves 4, each fixing sleeve 4 is equipped with the elastic pressuring plate 5 of several circumferential arrays, thus the one group of circular hole covered to it
Ball 1 in 6 is compressed.It is obstructed between two neighboring fixing sleeve 4 by 3 phase of damping ring.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of temperature variation resistant low abrasion self-lubricating linear bearing, it is characterised in that: including guiding axis (1), bearing race (2) and ball
One (8), the bearing race (2) are set in the periphery of the guiding axis (1), and side wall is equipped with several circular holes (6), the circular hole
(6) ball one (8) is rollably set in, and the periphery of the bearing race (2), which is equipped with, at least to be formed at the circular hole (6)
The fixing sleeve (4) of several elastic pressuring plates (5), the elastic pressuring plate (5) can be in contact with the ball one (8)；The bearing
Inner wall, the hole wall of the circular hole (6) and the inner surface of the elastic pressuring plate (5) of circle (2) are equipped with lubricant layer (7).
2. a kind of temperature variation resistant low abrasion self-lubricating linear bearing according to claim 1, it is characterised in that: the bearing race
(2) outer peripheral surface is equipped with damping ring (3), and the damping ring (3) is in contact with the fixing sleeve (4).
3. a kind of temperature variation resistant low abrasion self-lubricating linear bearing according to claim 1, it is characterised in that: the bearing race
(2) lubricant layer (7) set by the hole wall of inner wall, the circular hole (6) and the inner surface of the elastic pressuring plate (5) is integrally connected.
4. a kind of temperature variation resistant low abrasion self-lubricating linear bearing according to claim 1, it is characterised in that: the bearing race
(2) one end is additionally provided with slfactuating latch；The slfactuating latch includes being socketed on the bearing race (2) outer peripheral surface along axial direction
Bracket one (9) and bracket two (17), the bracket one (9) and the bracket two (17) pass through screw thread and the bearing race
(2) it is connected, the bracket one (9) is connected with the bracket two (17) by screw thread, the bracket one (9) and the bracket two
(17) elastomeric pad (16) are equipped between adjacent end.
5. a kind of temperature variation resistant low abrasion self-lubricating linear bearing according to claim 4, it is characterised in that: the bracket one
(9) it is equipped with connecting flange one (10), the bracket two (17) is equipped with connecting flange two (14), the connecting flange one (10)
It is connected with the connecting flange two (14).
6. a kind of temperature variation resistant low abrasion self-lubricating linear bearing according to claim 5, it is characterised in that: the connection method
Blue one (10) are rotatably installed on the bracket one (9) by bearing one (11), and the connecting flange two (14) passes through bearing two
(16) it is rotatably installed on the bracket two (17).
7. a kind of temperature variation resistant low abrasion self-lubricating linear bearing according to claim 4, it is characterised in that: the bracket one
(9) inner wall of inner wall and the bracket two (17) is equipped with internal screw thread, and the end of the bracket one (9) is additionally provided with connector sleeve,
The inner wall of the connector sleeve is equipped with internal screw thread, and one end of the bearing race (2) is equipped with and the bracket one (9) and the bracket two
(17) external screw thread that internal screw thread matches, the bracket two (17) are equipped with and the company close to one end of the bracket one (9)
The external screw thread that the internal screw thread of female connector matches.
8. a kind of temperature variation resistant low abrasion self-lubricating linear bearing according to claim 4, it is characterised in that: the self-locking
Mechanism abuts against in the axial direction with the fixing sleeve (4).
9. according to a kind of any temperature variation resistant low abrasion self-lubricating linear bearing of claim 4 to 8, it is characterised in that: institute
The inner wall for stating one end equipped with the slfactuating latch of bearing race (2) is equipped with several ball grooves to extend internally, the ball
Several balls two (18) are equipped in slot, the outer end of the ball grooves is equipped with retaining ring (19).
10. a kind of temperature variation resistant low abrasion self-lubricating linear bearing according to claim 9, it is characterised in that: the ball
The cell wall of slot is equipped with lubricant layer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910430176.3A CN110131310A (en) | 2019-05-22 | 2019-05-22 | A kind of temperature variation resistant low abrasion self-lubricating linear bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910430176.3A CN110131310A (en) | 2019-05-22 | 2019-05-22 | A kind of temperature variation resistant low abrasion self-lubricating linear bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110131310A true CN110131310A (en) | 2019-08-16 |
Family
ID=67572471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910430176.3A Pending CN110131310A (en) | 2019-05-22 | 2019-05-22 | A kind of temperature variation resistant low abrasion self-lubricating linear bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110131310A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1022909A (en) * | 1908-07-30 | 1912-04-09 | William A Whitney | Universal joint. |
| JPS50147052U (en) * | 1974-05-23 | 1975-12-05 | ||
| US6059665A (en) * | 1998-06-08 | 2000-05-09 | The United States Of America As Represented By The Secretary Of The Air Force | Linear ball bearing drive shaft |
| CN102767567A (en) * | 2012-07-23 | 2012-11-07 | 杜乐红 | Linear bearing |
| CN103498869A (en) * | 2012-05-12 | 2014-01-08 | 刘素华 | Method for band holder rolling friction reciprocating motion and guiding device for band holder linear reciprocating rolling |
| DE102013206352A1 (en) * | 2013-04-11 | 2014-10-16 | Aktiebolaget Skf | Concept for a ball guide channel of a ball-bearing linear guide |
| CN204025335U (en) * | 2014-06-11 | 2014-12-17 | 上海通用汽车有限公司 | Linear bearing assembly |
| CN204610558U (en) * | 2015-01-20 | 2015-09-02 | 浙江上银导轨制造有限公司 | A kind of two flange linear bearing assembly |
| CN106321645A (en) * | 2015-07-01 | 2017-01-11 | 斯凯孚公司 | Bearing assembly |
-
2019
- 2019-05-22 CN CN201910430176.3A patent/CN110131310A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1022909A (en) * | 1908-07-30 | 1912-04-09 | William A Whitney | Universal joint. |
| JPS50147052U (en) * | 1974-05-23 | 1975-12-05 | ||
| US6059665A (en) * | 1998-06-08 | 2000-05-09 | The United States Of America As Represented By The Secretary Of The Air Force | Linear ball bearing drive shaft |
| CN103498869A (en) * | 2012-05-12 | 2014-01-08 | 刘素华 | Method for band holder rolling friction reciprocating motion and guiding device for band holder linear reciprocating rolling |
| CN102767567A (en) * | 2012-07-23 | 2012-11-07 | 杜乐红 | Linear bearing |
| DE102013206352A1 (en) * | 2013-04-11 | 2014-10-16 | Aktiebolaget Skf | Concept for a ball guide channel of a ball-bearing linear guide |
| CN204025335U (en) * | 2014-06-11 | 2014-12-17 | 上海通用汽车有限公司 | Linear bearing assembly |
| CN204610558U (en) * | 2015-01-20 | 2015-09-02 | 浙江上银导轨制造有限公司 | A kind of two flange linear bearing assembly |
| CN106321645A (en) * | 2015-07-01 | 2017-01-11 | 斯凯孚公司 | Bearing assembly |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190816 |
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| RJ01 | Rejection of invention patent application after publication |