CN110319122A - The dedicated coupling mechanism force of constant velocity cardan joint assembly can adjust separate type Full connected bearing spider - Google Patents
The dedicated coupling mechanism force of constant velocity cardan joint assembly can adjust separate type Full connected bearing spider Download PDFInfo
- Publication number
- CN110319122A CN110319122A CN201810267169.1A CN201810267169A CN110319122A CN 110319122 A CN110319122 A CN 110319122A CN 201810267169 A CN201810267169 A CN 201810267169A CN 110319122 A CN110319122 A CN 110319122A
- Authority
- CN
- China
- Prior art keywords
- constant velocity
- silicone rubber
- rubber gasket
- cardan joint
- bearing spider
- 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
- 241000239290 Araneae Species 0.000 title claims abstract description 46
- 230000007246 mechanism Effects 0.000 title claims abstract description 18
- 230000008878 coupling Effects 0.000 title claims abstract description 17
- 238000010168 coupling process Methods 0.000 title claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 17
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 51
- 239000004945 silicone rubber Substances 0.000 claims abstract description 39
- 230000013011 mating Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 239000010960 cold rolled steel Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 238000003825 pressing Methods 0.000 abstract description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
Abstract
The entitled dedicated coupling mechanism force of constant velocity cardan joint assembly of the invention can adjust separate type Full connected bearing spider.Belong to CV joint for car assembly technical field.It mainly solves existing pedestal support there are bearing radial forces uneven, and bearing outer ring is easily caused to rupture or raceway inordinate wear and initial failure, eventually leads to the problem of service life of constant velocity cardan joint assembly is not able to satisfy vehicle requirement.Being mainly characterized by comprising: for it includes bearing spider, upper press cover, silicone rubber gasket and clamp flange screw；Silicone rubber gasket is arranged between upper press cover and the mating surface of bearing spider；In fastening screw, it can regulate and control and determine the compression degree of bearing according to silicone rubber gasket compressive deformation amount range 30~70%, it realizes can visually control to bearing pressing force, improves the reasonability and reliability of bearing spider, and then greatly improve the service life of constant velocity cardan joint and its assembly.Present invention is mainly used for the Auxiliary supports of right constant velocity cardan joint assembly.
Description
Technical field
The invention belongs to CV joint for car assembly technical fields.It is special more particularly to a kind of CV joint for car assembly
It can adjust separate type Full connected bearing spider with coupling mechanism force.
Background technique
Constant velocity cardan joint assembly is as the critical component in car drive system, and practical application structure type is very in the market
More, generally two different types of universal joint groups, which are combined into constant velocity cardan joint assembly, by jackshaft is connected to gearbox and wheel hub
Between, to realize the main purpose that the torque of engine is stably and reliably transferred to wheel.With medium-to-high grade vehicle in the market and
The sales volume of luxurious car persistently rises, and car model pursues huge discharge, large space also at the Developing mainstream of current each host producer
Direction, therefore, car weight are continuously increased, and wheelspan is increasing.In the biggish vehicle chassis design arrangement of car wheelspan, it is
The bending stiffness of transmission system is improved, transmission system flexural vibration characteristics are improved, reduces or reduce vibration and noise, it will usually
On the biggish right constant velocity cardan joint assembly of span, increase bearing spider Auxiliary support.Bearing spider early stage mostly in foreign capitals or
High discharge capacity SUV or MPV vehicle use in the production of joint vehicle enterprise, improve the improved stability NVH performance effect of transmission system
After the approval for gradually having obtained market, spreads to and be widely used by each independent brand vehicle now.
Bearing spider shape currently used in the market performance be it is various, still, according to the design structure of bearing spider,
It can be summarized as 3 seed type of monoblock type, combined type and separate type, if can be summarized as connecing entirely according to the fit system of bearing again
Touching and non-2 seed type of Full connected.Integrate, in the market the structure type of bearing spider are as follows: monoblock type have the non-Full connected of bearing/
Clearance fit, bearing Full connected/interference fit and the non-Full connected of bearing/3 kinds of screw single-point compression fit, combined type has plain shaft
Cover for seat bearing Full connected/interference fit and injecting glue bearing sleeve bearing Full connected/2 kinds of interference fit are held, separate type has spherical axis
1 kind of Full connected/compression fit is held, 6 sections of structures are amounted to.According to Market Feedback constant velocity cardan joint assembly quality problems Information Statistics
Data, it is band bearing seat structure constant velocity universal that the quality problems of bearing damage or failure, which account for about 60% of failure problems or more,
Save the product failure main forms of assembly.By comprehensive analysis, there is axis in above-mentioned 6 sections of bearing spider structures in various degree
Radial force unevenness is held, causes bearing outer ring exception stress to rupture or cooperation clearance becomes smaller leads to raceway inordinate wear and morning
The quality problems of phase failure, in addition, full-contact bearing spider and constant velocity cardan joint assembly press fitting one, there are main engine plants' installations
And market repair demolition difficult problem, combined bearing support constitute that complicated, part difficulty of processing is big, manufacturing cost is higher etc. asks
Topic.Separate structure is to design in all structures most reasonably, and there is also bearing radial force unevenness problems.In short, bearing is early
Phase rupture or wear-out failure, the service life for eventually leading to constant velocity cardan joint assembly are not able to satisfy the requirement of vehicle.
Summary of the invention
The purpose of the present invention is to above-mentioned different structure bearing spider there are the problem of or deficiency and provide a kind of etc.
The fast dedicated coupling mechanism force of universal joint assembly can adjust separate type Full connected bearing spider.
The technical solution of the invention is as follows: a kind of adjustable separate type Full connected of the dedicated coupling mechanism force of constant velocity cardan joint assembly
Bearing spider, including bearing spider, upper press cover and clamp flange screw, it is characterised in that: in the upper press cover and bearing spider
Silicone rubber gasket is provided between mating surface.
Silicone rubber gasket described in technical solution of the invention is silicon rubber O-ring.
Silicone rubber gasket described in technical solution of the invention is the silicone rubber gasket that section is ellipse.
Silicone rubber gasket described in technical solution of the invention is the silicone rubber gasket that section is rectangle.
The mating surface of upper press cover described in technical solution of the invention and bearing spider is equipped with and silicone rubber gasket
The groove of form fit.
The section thickness of silicone rubber gasket described in technical solution of the invention is having a size of 2.5~4.0mm.
Silicone rubber gasket described in technical solution of the invention includes the identical silicone rubber pad of two dimensions
Circle.
Section thickness after the assembly of silicone rubber gasket described in technical solution of the invention is thick having a size of former section
Spend the 30%~70% of size.
The material of bearing spider described in technical solution of the invention is A380 casting aluminium material；The material of upper press cover
For DC01 cold-rolled steel sheet material, punch forming.
The depth of groove described in technical solution of the invention, which is that silicone rubber gasket is former under non-pressured state, cuts
The 5%~10% of face thickness size.
The present invention between upper press cover and bearing spider mating surface due to having additional silicone rubber gasket, thus in clamp flange
When screw, section thickness after being assembled according to two silicone rubber gaskets 30%~70% regulating and controlling having a size of former section thickness size
And the compression degree of bearing is determined, it can be achieved that the pressing force to spherical bearing is visually regulated and controled, improvement spherical bearing is in bearing
Radial force state between support and upper press cover effectively eliminates cooperation tension problem, fundamentally solves because of pressing force
It is excessive that cooperation clearance is caused to become smaller and lead to the quality problems of raceway inordinate wear and initial failure, improve bearing spider
Reasonability and reliability, and then greatly improve the service life of constant velocity cardan joint and its assembly.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of spherical surface deep groove ball bearing.
Fig. 3 is the silicon rubber O-ring reset condition schematic diagram before screw-driving.
Fig. 4 is the silicon rubber O-ring compression deformation degree status diagram after screw-driving.
Fig. 5 is the overall structure diagram after bearing spider is installed with constant velocity cardan joint assembly.
In figure: 1. bearing spiders；2. silicon rubber O-ring；3. upper press cover；4. clamp flange screw；5. spherical surface zanjon
Ball bearing；6. constant velocity cardan joint assembly.
Specific embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawing.
The embodiment of the present invention 1 is as shown in Figures 1 to 5.The adjustable separate type Full connected bearing spider of coupling mechanism force is by bearing
Support 1,3, two silicon rubber O-rings 2 of upper press cover and two clamp flange screws 4 are constituted.Wherein, two silicon rubber O-rings 2 divide
In two mating surfaces not between upper press cover 3 and bearing spider 1.The dimensions of two silicon rubber O-rings 2 is identical, silicon
The section thickness of 2 reset condition of rubber o-ring needs root having a size of diameter phi=2.5~4.0mm, outer circle and inner circle diameter dimension
It is rationally determined according to specifically used fastening screw specification.Section thickness after the assembly of silicon rubber O-ring 2 is having a size of former section thickness
The 30%~70% of size.Bearing spider 1 is manufactured using casting aluminium material, and the casting aluminium material trade mark is generally A380.Upper press cover 3 is using cold
Rolled steel plate punch forming manufacture, cold-rolled steel sheet material trademark is DC01.
It completes spherical surface deep groove ball bearing 5 and is pressed fit spare, spherical surface with the constant velocity cardan joint assembly 6 on right driving axle assembly
Deep groove ball bearing 5 is suitable for standard rolling bearing series, is also applied for established line bearing series, generally standard rolling bearing series.In master
On the vehicle assembly line station of machine factory assembly shop, the present embodiment 1 is successively operated according to following assemble sequence: by bearing spider 1
It is mounted on the designated position of automobile gearbox as required, while 3 positioning screws being tentatively installed and are pre-tightened；Good shot face will be pressed
In the differential mechanism of the drive shaft assembly sliding-end splined connection insertion gearbox of deep groove ball bearing 5 and assemble in place, then
The spherical surface of spherical surface deep groove ball bearing 5 and the Internal Spherical Surface of bearing spider 1 are coincide to well in place；Then as illustrated successively by 2 silicon
3,2 rubber o-ring 2, upper press cover assembly of clamp flange screw 4 in place, reaffirm the spherical surface and axis of spherical surface deep groove ball bearing 5
Hold support 1 Internal Spherical Surface fit like a glove after pre-tighten 2 clamp flange screws 4；Make in " joint " aligning of spherical surface deep groove ball bearing 5
Under, so that drive shaft is in the best installation condition for adapting to setting angle, then tighten 3 positioning screws of bearing spider 1, then
Finally tighten 2 clamp flange screws 4.The judgment basis tightened is the section thickness ruler after being assembled with 2 silicon rubber O-rings 2
Very little H is the 30%~70% of the preceding former section thickness size φ of assembly, as shown in Figure 3, Figure 4.
After 2 clamp flange screws 4 compress, the spherical outside surface of spherical surface deep groove ball bearing 5 and bearing spider 1, upper press cover 3 it is interior
Spherical surface is in Full connected state, at this point, spherical surface deep groove ball bearing 5 and bearing spider 1, upper press cover 3 are in and are interference fitted, but
Under the flexible adjustment of 2 silicon rubber O-rings 2, pressing force has obtained preferable regulation, and can be according to 2 silicon rubber O-rings
2 compressive deformation amount ranges 30~70% realize can visually control to bearing pressing force, to evade bearing completely because compressing
Power is excessive, which to cause cooperation clearance to become smaller, leads to the quality problems of raceway inordinate wear and initial failure, bearing spider 1 with etc.
Overall structure after fast universal joint assembly 6 is installed is as shown in Figure 5.
The embodiment of the present invention 2 and the difference of embodiment 1 be, section is used to replace silicon for the silicone rubber gasket of ellipse
Rubber o-ring 2 is equipped with the ellipse with oval silicone rubber gasket form fit in the mating surface of bearing spider and upper press cover
Groove.The silicone rubber gasket of ellipse is the identical oval silicone rubber gasket of two dimensions, and each one of left and right is symmetrical to divide
Cloth.2 oval silicone rubber gasket upper and lower surfaces are respectively placed in the oval-shaped groove of bearing spider and upper press cover when assembly
It is interior, convenient for deforming uniformity in the assembly and compaction process of oval silicone rubber gasket, make the bullet of oval silicone rubber gasket
Property adjust reach optimum state.
The embodiment of the present invention 3 and the difference of embodiment 2 are, use section by the silicone rubber gasket of rectangle to replace ellipse
Rectangular recess is arranged in the mating surface of bearing spider and upper press cover to replace oval-shaped groove, and axis in the silicone rubber gasket of shape
Hold support, the rectangular recess depth of upper press cover be rectangle silicone rubber gasket under non-pressured state former section thickness size 5%~
10%。
It present invention can be suitably applied to constant velocity joint types and vehicle all on current domestic and international market.
Above-mentioned specific implementation case only explanation of the invention, is not limitation of the invention, those skilled in the art
Member can as needed make above-mentioned case study on implementation on the basis of the present invention does not have creative modification, but as long as in the present invention
Scope of the claims in all by the protection of Patent Law.
Claims (10)
1. a kind of dedicated coupling mechanism force of constant velocity cardan joint assembly can adjust separate type Full connected bearing spider, including bearing spider (1),
Upper press cover (3) and clamp flange screw (4), it is characterised in that: between the upper press cover (3) and bearing spider (1) mating surface
It is provided with silicone rubber gasket.
2. the dedicated coupling mechanism force of constant velocity cardan joint assembly according to claim 1 can adjust separate type Full connected bearing spider,
It is characterized by: the silicone rubber gasket is silicon rubber O-ring (2).
3. the dedicated coupling mechanism force of constant velocity cardan joint assembly according to claim 1 can adjust separate type Full connected bearing spider,
It is characterized by: the silicone rubber gasket is the silicone rubber gasket that section is ellipse.
4. the dedicated coupling mechanism force of constant velocity cardan joint assembly according to claim 1 can adjust separate type Full connected bearing spider,
It is characterized by: the silicone rubber gasket is the silicone rubber gasket that section is rectangle.
5. the dedicated coupling mechanism force of constant velocity cardan joint assembly according to claim 1,2,3 or 4 can adjust separate type Full connected axis
Hold support, it is characterised in that: the mating surface of the upper press cover (3) and bearing spider (1) is equipped with matches with silicone rubber gasket shape
The groove of conjunction.
6. the dedicated coupling mechanism force of constant velocity cardan joint assembly according to claim 1,2,3 or 4 can adjust separate type Full connected axis
Hold support, it is characterised in that: the section thickness of the silicone rubber gasket is having a size of 2.5~4.0mm.
7. the dedicated coupling mechanism force of constant velocity cardan joint assembly according to claim 1,2,3 or 4 can adjust separate type Full connected axis
Hold support, it is characterised in that: the silicone rubber gasket includes the identical silicone rubber gasket of two dimensions.
8. the dedicated coupling mechanism force of constant velocity cardan joint assembly according to claim 1,2,3 or 4 can adjust separate type Full connected axis
Hold support, it is characterised in that: section thickness after the described silicone rubber gasket assembly having a size of former section thickness size 30%~
70%。
9. the dedicated coupling mechanism force of constant velocity cardan joint assembly according to claim 1,2,3 or 4 can adjust separate type Full connected axis
Hold support, it is characterised in that: the material of the bearing spider (1) is A380 casting aluminium material；The material of upper press cover (3) is DC01
Cold-rolled steel sheet material, punch forming.
10. the dedicated coupling mechanism force of constant velocity cardan joint assembly according to claim 5 can adjust separate type Full connected bearing spider,
It is characterized by: the depth of the groove be silicone rubber gasket under non-pressured state former section thickness size 5%~10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810267169.1A CN110319122A (en) | 2018-03-28 | 2018-03-28 | The dedicated coupling mechanism force of constant velocity cardan joint assembly can adjust separate type Full connected bearing spider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810267169.1A CN110319122A (en) | 2018-03-28 | 2018-03-28 | The dedicated coupling mechanism force of constant velocity cardan joint assembly can adjust separate type Full connected bearing spider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110319122A true CN110319122A (en) | 2019-10-11 |
Family
ID=68110391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810267169.1A Pending CN110319122A (en) | 2018-03-28 | 2018-03-28 | The dedicated coupling mechanism force of constant velocity cardan joint assembly can adjust separate type Full connected bearing spider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110319122A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339394A (en) * | 2021-05-18 | 2021-09-03 | 王润昭 | Novel universal ball head connecting piece of five metals |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU49662A1 (en) * | 1936-02-13 | 1936-08-31 | М.В. Евдюков | Nut for washer |
| CN2823655Y (en) * | 2005-06-25 | 2006-10-04 | 攀枝花新钢钒股份有限公司 | Integral bearing seat capable of regulating bearing fastening force |
| CN201319535Y (en) * | 2008-12-15 | 2009-09-30 | 宁夏三一西北骏马电机制造股份有限公司 | Front bearing positioning structure of motor |
| CN102252030A (en) * | 2010-05-20 | 2011-11-23 | 庞长同 | Bearing pre-tightening device with axial force compensation function |
| CN202674041U (en) * | 2012-05-17 | 2013-01-16 | 陆连运 | Bearing end cover with additionally arranged elastic rubber ring |
| CN102996653A (en) * | 2011-09-13 | 2013-03-27 | 江苏八达重工机械有限公司 | Axial force compensation type bearing preloading device |
| CN203004367U (en) * | 2012-12-28 | 2013-06-19 | 江苏扬力集团有限公司 | Spherical surface contact type accuracy adjustment structure |
| CN203067564U (en) * | 2012-12-21 | 2013-07-17 | 攀枝花钢城集团有限公司 | Distance-adjustable bearing bush |
| CN206694434U (en) * | 2017-05-16 | 2017-12-01 | 盐城支点机械制造有限公司 | A kind of bearing block being easily installed |
| CN208040952U (en) * | 2018-03-28 | 2018-11-02 | 襄阳汽车轴承股份有限公司 | The special coupling mechanism force of constant velocity cardan joint assembly can adjust separate type Full connected bearing spider |
-
2018
- 2018-03-28 CN CN201810267169.1A patent/CN110319122A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU49662A1 (en) * | 1936-02-13 | 1936-08-31 | М.В. Евдюков | Nut for washer |
| CN2823655Y (en) * | 2005-06-25 | 2006-10-04 | 攀枝花新钢钒股份有限公司 | Integral bearing seat capable of regulating bearing fastening force |
| CN201319535Y (en) * | 2008-12-15 | 2009-09-30 | 宁夏三一西北骏马电机制造股份有限公司 | Front bearing positioning structure of motor |
| CN102252030A (en) * | 2010-05-20 | 2011-11-23 | 庞长同 | Bearing pre-tightening device with axial force compensation function |
| CN102996653A (en) * | 2011-09-13 | 2013-03-27 | 江苏八达重工机械有限公司 | Axial force compensation type bearing preloading device |
| CN202674041U (en) * | 2012-05-17 | 2013-01-16 | 陆连运 | Bearing end cover with additionally arranged elastic rubber ring |
| CN203067564U (en) * | 2012-12-21 | 2013-07-17 | 攀枝花钢城集团有限公司 | Distance-adjustable bearing bush |
| CN203004367U (en) * | 2012-12-28 | 2013-06-19 | 江苏扬力集团有限公司 | Spherical surface contact type accuracy adjustment structure |
| CN206694434U (en) * | 2017-05-16 | 2017-12-01 | 盐城支点机械制造有限公司 | A kind of bearing block being easily installed |
| CN208040952U (en) * | 2018-03-28 | 2018-11-02 | 襄阳汽车轴承股份有限公司 | The special coupling mechanism force of constant velocity cardan joint assembly can adjust separate type Full connected bearing spider |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339394A (en) * | 2021-05-18 | 2021-09-03 | 王润昭 | Novel universal ball head connecting piece of five metals |
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