CN107830058B - Rolling bearing and its bearing ring - Google Patents
Rolling bearing and its bearing ring Download PDFInfo
- Publication number
- CN107830058B CN107830058B CN201711219109.4A CN201711219109A CN107830058B CN 107830058 B CN107830058 B CN 107830058B CN 201711219109 A CN201711219109 A CN 201711219109A CN 107830058 B CN107830058 B CN 107830058B
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- China
- Prior art keywords
- circular arc
- raceway
- section
- bearing
- lasso
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Classifications
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- 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
- F16C33/583—Details of specific parts of races
Abstract
The present invention relates to technical field of bearings, in particular to rolling bearing and its bearing ring.The bearing ring and the rolling element between two bearing rings that rolling bearing includes two adaptations, one is fixation lasso fixed when using in two bearing rings, one is the rotation lasso rotated when using relative to fixing sleeve circle, the raceway rolled for rolling element is equipped on fixed lasso and rotation lasso, it include circular arc carrying section and circular arc non-bearing section on fixed lasso, the raceway radius that circular arc carries section is r3Meet relationship: (2 (r2+Dw)‑r1) < r3< r1；Or the fixed lasso is bearing inner race, the raceway radius that circular arc carries section is r3Meet relationship: r1< r3< (2 (r2‑Dw)‑r1).During rolling bearing operates, the radial position difference that bearing inner race generates in the case that rolling element odd number is pressurized with even number compression reduces, " running vibration " amplitude of rolling element reduces, to solve the problems, such as that rolling element bearing life as caused by " running vibration " amplitude is larger of current rolling bearing is low.
Description
Technical field
The present invention relates to technical field of bearings, in particular to rolling bearing and its bearing ring.
Background technique
There are two the bearing rings of rolling bearing, and as shown in Figures 1 to 4, one of them is bearing inner race 10, another is
One is fixation lasso fixed when in use in bearing outer ring 20, bearing inner race 10 and bearing outer ring 20, another is use
When the rotation lasso that rotates, rolling element 30 is equipped between bearing inner race 10 and bearing outer ring 20, due to the discrete type of rolling element 30
And radial internal clearance existing for bearing itself, rolling bearing exists " running vibration " in the course of rotation, i.e., bearing inner race 10 and
It is moving up and down for δ that the axis being mounted on bearing inner race has amplitude during rotation." bearing " periodical 2007 11 is interim
" running vibration " principle that rolling bearing is described in the paper of entitled " " running vibration " of rolling bearing " of publication, works as rolling
When the rolling element 30 of dynamic bearing is by carrying section 40, the position of rolling element 30 can in fig. 1 and 2 shown between two states
In periodic variation, in Fig. 1 and Fig. 3, the rolling element 30 of compression is odd number, and in Fig. 2, the rolling element 30 of compression is even
Number, and it is symmetric state on the both sides of load position, under load effect, bearing inner race generates diameter relative to outer ring
To displacement, as shown in figure 4, the radial position difference that both state lower bearing inner rings 10 generate is δ, it is this because of rolling element 30
Vibration caused by difference is set just as the fluctuating occurred when people walks, " running vibration " can be referred to as.Rolling element " strides
Bounce " amplitude will cause greatly that bear vibration amplitude is big, thus the problem for causing bearing life low.
Summary of the invention
The object of the present invention is to provide a kind of rolling bearings, to solve the rolling element of current rolling bearing due to " striding
The low problem of bounce " bearing life caused by amplitude is larger；In addition, the object of the invention is also to provide a kind of above-mentioned axis of rolling
Hold used bearing ring.
To achieve the above object, the first technical solution of rolling bearing of the invention are as follows: rolling bearing includes two suitable
The bearing ring and the rolling element between two bearing rings matched, one is fixed when using consolidate in two bearing rings
Determine lasso, another is rotation lasso when using relative to the rotation of fixing sleeve circle, is equipped with confession on fixed lasso and rotation lasso
The raceway that rolling element rolls, fixing on lasso includes circular arc carrying section and circular arc non-bearing section, the raceway half of circular arc non-bearing section
Diameter is r1, rotation lasso raceway radius is r2, the diameter of rolling element is Dw, the raceway radius that circular arc carries section is r3, the fixation
Lasso is bearing outer ring, and the raceway radius that circular arc carries section is r3Meet relationship: (2 (r2+Dw)-r1) < r3< r1；Or it is described
Fixed lasso is bearing inner race, and the raceway radius that circular arc carries section is r3Meet relationship: r1< r3< (2 (r2-Dw)-r1)。
Second of technical solution of rolling bearing of the invention are as follows: on the basis of the first technical solution of the invention,
The fixed lasso is bearing outer ring, and the raceway radius of the circular arc carrying section is the diameter of rolling element and the raceway of rotation lasso
The sum of radius, i.e. r3=(r2+Dw)；Or the fixed lasso is bearing inner race, the raceway radius of the circular arc carrying section is to turn
The difference of the diameter of the raceway radius and rolling element of dynamic lasso, i.e. r3=(r2-Dw)。
The third technical solution of rolling bearing of the invention are as follows: on the basis of second of technical solution of the invention,
The fixed lasso is bearing outer ring, and origin, fixation is in the center of circle of circle where the raceway to fix circular arc non-bearing section on lasso
Two orthogonal radiuses of circle where the raceway of circular arc non-bearing section are x on lasso, y-axis establishes coordinate system, circular arc carrying
The raceway of section is towards y-axis forward direction, and the raceway of circular arc carrying section is symmetrical about y-axis, and circular arc carries the circle where the raceway of section
Equation are as follows: x2+(y+e)2=r3 2, Formula
In, r3=r2+Dw；Wherein Z is rolling element number.
4th kind of technical solution of rolling bearing of the invention are as follows: on the basis of second of technical solution of the invention,
The fixed lasso is bearing inner race, and origin, fixation is in the center of circle of circle where the raceway to fix circular arc non-bearing section on lasso
Two orthogonal radiuses of circle where the raceway of circular arc non-bearing section are x on lasso, y-axis establishes coordinate system, circular arc carrying
The raceway of section is towards y-axis forward direction, and the raceway of circular arc carrying section is symmetrical about y-axis, and circular arc carries the circle where the raceway of section
Equation are as follows: x2+(y+e)2=r3 2, Formula
In, r3=r2-Dw；Wherein Z is rolling element number.
5th kind of technical solution of rolling bearing of the invention are as follows: in the first of the invention to any one in the 4th kind
On the basis of technical solution, the circular arc carrying section setting at least two.
The first technical solution of bearing ring of the invention are as follows: bearing ring is fixation lasso fixed when using, Gu
Determining lasso includes circular arc carrying section and circular arc non-bearing section, and the raceway radius of circular arc non-bearing section is r1, it is used for and fixed lasso
The rotation lasso raceway radius of adaptation is r2, the diameter of the rolling element for being arranged between fixed lasso and bearing ring is Dw,
The raceway radius that circular arc carries section is r3, the fixed lasso is bearing outer ring, and the raceway radius that circular arc carries section is r3Meet and closes
System: (2 (r2+Dw)-r1) < r3< r1；Or the fixed lasso is bearing inner race, the raceway radius that circular arc carries section is r3It is full
Sufficient relationship: r1< r3< (2 (r2-Dw)-r1)。
Second of technical solution of bearing ring of the invention are as follows: on the basis of the first technical solution, the fixation
Lasso is bearing outer ring, the raceway radius of circular arc carrying section be rolling element diameter and rotation lasso raceway radius it
With i.e. r3=(r2+Dw)；Or the fixed lasso is bearing inner race, the raceway radius of the circular arc carrying section is rotation lasso
Raceway radius and rolling element diameter difference, i.e. r3=(r2-Dw)。
The third technical solution of bearing ring of the invention are as follows: on the basis of second of technical solution, the fixation
Lasso is bearing outer ring, centered on the center of circle of circle where the raceway of circular arc non-bearing section, where the raceway of circular arc non-bearing section
Two round orthogonal radiuses are x, y-axis establishes coordinate system, and circular arc carries the raceway of section towards y-axis forward direction, and circular arc is held
Load section raceway is symmetrical about y-axis, and circular arc carries the equation of the circle where the raceway of section are as follows: x2+(y+e)2=r3 2,In formula, r3=r2+Dw；Wherein Z is
Rolling element number.
4th kind of technical solution of bearing ring of the invention are as follows: on the basis of second of technical solution, the fixation
Lasso is bearing inner race, centered on the center of circle of circle where the raceway of circular arc non-bearing section, where the raceway of circular arc non-bearing section
Two round orthogonal radiuses are x, y-axis establishes coordinate system, and circular arc carries the raceway of section towards y-axis forward direction, and circular arc is held
Load section raceway is symmetrical about y-axis, and circular arc carries the equation of the circle where the raceway of section are as follows: x2+(y+e)2=r3 2,In formula, r3=r2-Dw；Wherein Z is
Rolling element number.
5th kind of technical solution of bearing ring of the invention are as follows: at the first to any one technical solution in the 4th kind
On the basis of, the circular arc carrying section setting at least two.
The invention has the benefit that the circular arc of rolling bearing of the invention carries section when fixed lasso is bearing outer ring
Raceway radius meet: (2 (r2+Dw)-r1) < r3< r1, during rolling bearing operates, rolling element odd number is pressurized and even number
The radial position difference that bearing inner race generates in the case where compression reduces, and " running vibration " amplitude of rolling element reduces, similarly, Gu
When to determine lasso be bearing inner race, the amplitude that strides of rolling element also reduces, thus solve the rolling element of current rolling bearing by
The low problem of the bearing life caused by " running vibration " amplitude is larger.
Further, the fixed lasso is bearing outer ring, and the raceway radius of the circular arc carrying section is the straight of rolling element
The sum of the raceway radius of diameter and rotation lasso, i.e. r3=(r2+Dw)；Or the fixed lasso is bearing inner race, the circular arc is held
The raceway radius for carrying section is the difference for rotating the diameter of raceway radius and rolling element of lasso, i.e. r3=(r2-Dw), make rolling element
The amplitude of " running vibration " is minimum, further increases the service life of bearing.
Further, circular arc carrying section setting at least two, makes rolling bearing have different Installation postures, facilitates peace
Dress.
Detailed description of the invention
Fig. 1 is that turn to the rolling element being pressurized when first position be even number to the bearing inner race in the prior art in rolling bearing
Status diagram；
Fig. 2 is that turn to the rolling element being pressurized when the second position be radix to the bearing inner race in the prior art in rolling bearing
Status diagram；
Fig. 3 is that turn to the rolling element being pressurized when the third place be even number to the bearing inner race in the prior art in rolling bearing
Status diagram；
Fig. 4 is rolling element " running vibration " analysis in the prior art and bounce curve expansion comparison diagram；
Fig. 5 is the structural schematic diagram of the specific embodiment 1 of rolling bearing of the invention (part rolling element is not shown)；
Fig. 6 is the rough schematic view of the specific embodiment 1 of rolling bearing of the invention；
Fig. 7 is the machined parameters schematic diagram of the specific embodiment 1 of rolling bearing of the invention；
Fig. 8 is the enlarged drawing of part A in Fig. 7；
Fig. 9 is the machined parameters schematic diagram of the specific embodiment 2 of rolling bearing of the invention；
Figure 10 is the enlarged drawing of part B in Fig. 9.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment 1 of rolling bearing of the invention, as shown in Figure 5 and Figure 6, rolling bearing include two bearing holder (housing, cover)s
Circle, one of them is rotation lasso 1, another is fixed lasso 2.It rotates and retainer 4 is set between lasso 1 and fixed lasso 2
With rolling element 3.
Fixation lasso 2 in the present embodiment is bearing outer ring, and rotation lasso 1 is bearing inner race.Rotate lasso 1 and fixing sleeve
The raceway rolled for rolling element 3 is respectively provided on circle 2, fixed lasso 2 is equipped with circular arc carrying section 21 and circular arc non-bearing section 22.Such as
Shown in Fig. 7 and Fig. 8, the raceway radius of circular arc non-bearing section 22 is r1=70mm, rotation 1 raceway radius of lasso are r2=
54.95mm, the diameter of rolling element 3 are Dw=15mm, rolling element 3 several Z=14, the half of circle where circular arc carries the raceway of section 21
Diameter, that is, circular arc carrying section 21 raceway radius is r3。
Using the center of circle of circle where the raceway of circular arc non-bearing section 22 as circle where coordinate origin, circular arc non-bearing section 22
Two orthogonal radiuses are x, y-axis establishes coordinate system, and circular arc carries the raceway of section 21 towards y-axis forward direction, and circular arc carries
The raceway of section 21 is symmetrical about y-axis, the equation of circle M where the raceway of circular arc non-bearing section 22 on fixed lasso 2 are as follows: x2+y2=
702,
Circular arc carries the equation of the circle N where the raceway of section 21 are as follows:
x2+(y+e)2=r3 2,
In formula, r3=r2+Dw；Wherein Z is 3 numbers of rolling element.
After substituting into numerical value: r4=
(54.95+15=69.95 mm).
Circular arc carries the equation of circle where 21 raceway of section are as follows: x2+(y+0.0555)2=69.952。
The equation of circle where the equation of circle where carrying the raceway of section 21 according to circular arc and the raceway of circular arc non-bearing section 22
Fixed lasso 2 is processed, by fixation lasso 2 after processing is completed and rotates lasso 1, rolling element 3, retainer progress trap
Obtain a kind of ultralow vibration rolling bearing.The raceway radius length r of circular arc carrying section 213=r2+Dw, rolling element 3 holds in circular arc
When carrying on the raceway of section 21, as shown in fig. 6, either odd number rolling element 3 is pressurized or even number rolling element 3 is pressurized, circular arc
Circle where carrying the raceway of section 21 is arranged concentrically always with circle where the raceway of rotation lasso 1, and rolling element 3 is not in " to stride
Bounce " phenomenon, avoids the influence of " running vibration " to bear vibration.
Circular arc carrying 21 minimum point of section of rolling bearing of the invention is in raceway bottom, to reach optimal use effect
Fruit.In other embodiments, according to the difference in carrying direction, at least two circular arcs carrying section 21 can be set, circular arc carries section 21
Also it can be set in top or left side or right side.
In other embodiments, in the case where not pursuing ultimate attainment effect, in the raceway radius r of circular arc carrying section 213Meet:
(2(r2+Dw)-r1) < r3< r1When, it can reduce " running vibration " amplitude of rolling element 3, mitigate the vibration of rolling bearing, mention
The service life of high rolling bearing.
The specific embodiment 2 of rolling bearing of the invention, the structure of the rolling bearing in the present embodiment and the above-mentioned axis of rolling
The difference of the specific embodiment 1 held is only that: as shown in Figure 9 and Figure 10, the bearing inner race of the rolling bearing in the present embodiment is
Fixed lasso 2, at this point, circular arc carrying section 21 is arranged on bearing inner race, fixed 2 raceway radius of lasso is r1, the rotation rolling of lasso 1
Road radius is r2, the diameter of rolling element 3 is Dw, rolling element 3 several Z, the raceway radius that circular arc carries section 21 is r3, circular arc carrying
The raceway radius r of section 213Meet: r3=(r2-Dw), it can influence to avoid " running vibration " to bear vibration.
In the present embodiment, r1=54.95mm, r2=70mm, the diameter of rolling element 3 are Dw=15mm
Using the center of circle of circle where the raceway of circular arc non-bearing section 22 as circle where coordinate origin, circular arc non-bearing section 22
Two orthogonal radiuses are x, y-axis establishes coordinate system, and circular arc carries the raceway of section 21 towards y-axis forward direction, and circular arc carries
The raceway of section 21 is symmetrical about y-axis, the equation of circle M where the raceway of circular arc non-bearing section 22 on fixed lasso 2 are as follows: x2+y2=
54.952,
Circular arc carries the equation of the circle N where the raceway of section 21 are as follows:
x2+(y+e)2=r3 2,
In formula, r3=r2-Dw；Wherein Z is 3 numbers of rolling element.
After substituting into numerical value: r3=70-15=55 (mm).
Circular arc carries the equation of circle where 21 raceway of section are as follows: x2+(y+0.0555)2=552。
In other embodiments, in the case where not pursuing ultimate attainment effect, in the raceway radius r of circular arc carrying section 213Meet r1
< r3< (2 (r2-Dw)-r1) when, it can reduce " running vibration " amplitude of rolling element 3, mitigate the vibration of rolling bearing, mention
The service life of high rolling bearing.
The specific embodiment of bearing ring of the invention, the structure of the bearing ring in the present embodiment and above-mentioned rolling bearing
Specific embodiment 1 or 2 shown in fix lasso structure it is identical, do not repeating.
Claims (4)
1. rolling bearing, the bearing ring and the rolling element between two bearing rings being adapted to including two, two bearings
One is fixation lasso fixed when using in lasso, another is rotation lasso when using relative to the rotation of fixing sleeve circle, Gu
Determine lasso and rotate the raceway for being equipped on lasso and rolling for rolling element, includes circular arc carrying section on fixed lasso and circular arc is non-holds
Carry section, it is characterised in that: the raceway radius of circular arc non-bearing section is r1, rotation lasso raceway radius is r2, the diameter of rolling element is
Dw, the raceway radius that circular arc carries section is r3；The fixed lasso is bearing outer ring, and the raceway radius that circular arc carries section is r3It is full
Sufficient relationship: (2 (r2+Dw)-r1) < r3< r1, the raceway radius of the circular arc carrying section is the diameter and rotation lasso of rolling element
The sum of raceway radius, i.e. r3=(r2+Dw), using the center of circle of circle where fixing the raceway of circular arc non-bearing section on lasso as origin, solid
Two orthogonal radiuses of circle are x where determining the raceway of circular arc non-bearing section on lasso, y-axis establishes coordinate system, and circular arc is held
The raceway of section is carried towards y-axis forward direction, and the raceway of circular arc carrying section is symmetrical about y-axis, circular arc carries the circle where the raceway of section
Equation are as follows: x2+(y+e)2=r3 2,
Wherein Z is rolling element number；
Or
The fixed lasso is bearing inner race, and the raceway radius that circular arc carries section is r3Meet relationship:
r1< r3< (2 (r2-Dw)-r1), the raceway radius of the circular arc carrying section is the raceway radius and rolling element for rotating lasso
Diameter difference, i.e. r3=(r2-Dw), origin, fixation is in the center of circle of circle where the raceway to fix circular arc non-bearing section on lasso
Two orthogonal radiuses of circle where the raceway of circular arc non-bearing section are x on lasso, y-axis establishes coordinate system, circular arc carrying
The raceway of section is towards y-axis forward direction, and the raceway of circular arc carrying section is symmetrical about y-axis, and circular arc carries the circle where the raceway of section
Equation are as follows: x2+(y+e)2=r3 2,
Wherein Z is rolling element number.
2. rolling bearing according to claim 1, it is characterised in that: the circular arc carrying section setting at least two.
3. bearing ring, bearing ring is fixation lasso fixed when using, and fixed lasso includes that circular arc carrying section and circular arc are non-
Carry section, it is characterised in that: the raceway radius of circular arc non-bearing section is r1, rotation lasso raceway for being adapted to fixed lasso
Radius is r2, the diameter of the rolling element for being arranged between fixed lasso and bearing ring is Dw, the raceway half of circular arc carrying section
Diameter is r3, the fixed lasso is bearing outer ring, and the raceway radius that circular arc carries section is r3Meet relationship:
(2(r2+Dw)-r1) < r3< r1, the raceway radius of the circular arc carrying section is the rolling of the diameter and rotation lasso of rolling element
The sum of road radius, i.e. r3=(r2+Dw), origin, fixation is in the center of circle of circle where the raceway to fix circular arc non-bearing section on lasso
Two orthogonal radiuses of circle where the raceway of circular arc non-bearing section are x on lasso, y-axis establishes coordinate system, circular arc carrying
The raceway of section is towards y-axis forward direction, and the raceway of circular arc carrying section is symmetrical about y-axis, and circular arc carries the circle where the raceway of section
Equation are as follows: x2+(y+e)2=r3 2,
Wherein Z is rolling element number；
Or
The fixed lasso is bearing inner race, and the raceway radius that circular arc carries section is r3Meet relationship:
r1< r3< (2 (r2-Dw)-r1), the raceway radius of the circular arc carrying section is the raceway radius and rolling element for rotating lasso
Diameter difference, i.e. r3=(r2-Dw), origin, fixation is in the center of circle of circle where the raceway to fix circular arc non-bearing section on lasso
Two orthogonal radiuses of circle where the raceway of circular arc non-bearing section are x on lasso, y-axis establishes coordinate system, circular arc carrying
The raceway of section is towards y-axis forward direction, and the raceway of circular arc carrying section is symmetrical about y-axis, and circular arc carries the circle where the raceway of section
Equation are as follows: x2+(y+e)2=r3 2,
Wherein Z is rolling element number.
4. bearing ring according to claim 3, it is characterised in that: the circular arc carrying section setting at least two.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910345388.1A CN110043566B (en) | 2017-11-28 | 2017-11-28 | Rolling bearing and bearing ring thereof |
| CN201711219109.4A CN107830058B (en) | 2017-11-28 | 2017-11-28 | Rolling bearing and its bearing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711219109.4A CN107830058B (en) | 2017-11-28 | 2017-11-28 | Rolling bearing and its bearing ring |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910345388.1A Division CN110043566B (en) | 2017-11-28 | 2017-11-28 | Rolling bearing and bearing ring thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107830058A CN107830058A (en) | 2018-03-23 |
| CN107830058B true CN107830058B (en) | 2019-05-31 |
Family
ID=61646281
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910345388.1A Active CN110043566B (en) | 2017-11-28 | 2017-11-28 | Rolling bearing and bearing ring thereof |
| CN201711219109.4A Active CN107830058B (en) | 2017-11-28 | 2017-11-28 | Rolling bearing and its bearing ring |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910345388.1A Active CN110043566B (en) | 2017-11-28 | 2017-11-28 | Rolling bearing and bearing ring thereof |
Country Status (1)
| Country | Link |
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| CN (2) | CN110043566B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396456B (en) * | 2019-01-02 | 2021-07-13 | 中国航发商用航空发动机有限责任公司 | Rolling bearing and support structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007002914A (en) * | 2005-06-23 | 2007-01-11 | Nsk Ltd | Bearing ring split type rolling bearing |
| JP2009293705A (en) * | 2008-06-05 | 2009-12-17 | Ntn Corp | Rocking bearing |
| CN102434589A (en) * | 2011-09-01 | 2012-05-02 | 中国航空动力机械研究所 | Bearing |
| CN204175804U (en) * | 2014-11-06 | 2015-02-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Aeroplane engine main bearing outer shroud three lobe slope structure |
| CN105757124A (en) * | 2016-02-23 | 2016-07-13 | 安徽省宁国顺昌机械有限公司 | High-toughness and high-rigidity rolling bearing |
-
2017
- 2017-11-28 CN CN201910345388.1A patent/CN110043566B/en active Active
- 2017-11-28 CN CN201711219109.4A patent/CN107830058B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007002914A (en) * | 2005-06-23 | 2007-01-11 | Nsk Ltd | Bearing ring split type rolling bearing |
| JP2009293705A (en) * | 2008-06-05 | 2009-12-17 | Ntn Corp | Rocking bearing |
| CN102434589A (en) * | 2011-09-01 | 2012-05-02 | 中国航空动力机械研究所 | Bearing |
| CN204175804U (en) * | 2014-11-06 | 2015-02-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Aeroplane engine main bearing outer shroud three lobe slope structure |
| CN105757124A (en) * | 2016-02-23 | 2016-07-13 | 安徽省宁国顺昌机械有限公司 | High-toughness and high-rigidity rolling bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110043566A (en) | 2019-07-23 |
| CN107830058A (en) | 2018-03-23 |
| CN110043566B (en) | 2021-07-23 |
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