CN113898668B - Sealed aligning roller bearing - Google Patents
Sealed aligning roller bearing Download PDFInfo
- Publication number
- CN113898668B CN113898668B CN202111374904.7A CN202111374904A CN113898668B CN 113898668 B CN113898668 B CN 113898668B CN 202111374904 A CN202111374904 A CN 202111374904A CN 113898668 B CN113898668 B CN 113898668B
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- CN
- China
- Prior art keywords
- framework
- outer ring
- seal
- bearing
- lip
- 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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- 238000003825 pressing Methods 0.000 claims abstract description 39
- 238000005096 rolling process Methods 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 238000005452 bending Methods 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/06—Ball or roller bearings
- F16C23/08—Ball or roller bearings self-adjusting
-
- 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
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
- F16C33/7823—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of sealing lips
-
- 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
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
- F16C33/7826—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of the opposing surface cooperating with the seal, e.g. a shoulder surface of a bearing ring
-
- 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
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/783—Details of the sealing or parts thereof, e.g. geometry, material of the mounting region
Abstract
The invention relates to a sealed self-aligning roller bearing. The sealed self-aligning roller bearing is provided with an inner ring, an outer ring, a first row of rolling bodies, a middle spacing ring, a second row of rolling bodies and a retainer, wherein the first row of rolling bodies, the middle spacing ring, the second row of rolling bodies and the retainer are positioned in the inner ring and the outer ring; the two side end faces of the outer ring are provided with grooves; a first framework seal and a second framework seal are arranged between the inner ring and the outer ring; the upper ends of the first framework seal and the second framework seal are bonded with the bottom surface of the corresponding notch on the outer ring and fixedly connected with the outer ring, and the lower ends of the first framework seal and the second framework seal are bonded with the inner ring in a sealing way through double-lip rubber; the first framework seal is provided with a framework formed by pressing steel plates; the framework is provided with a vertical section I; the upper end of the vertical section I is inwards bent to form a bent section and then upwards extends to form a vertical section II; and the vertical section II is attached to the corresponding notch on the outer ring. The bearing capacity of the invention has small influence and large aligning angle; the seal and the outer ring are integrated, and the seal is not out of position or falls off due to frequent dislocation of the inner ring and the outer ring of the bearing.
Description
Technical Field
The invention relates to a bearing, in particular to a sealed self-aligning roller bearing.
Background
The self-aligning roller bearing has a self-aligning function of misalignment of the transmission, and is widely applied to industrial gearboxes. However, in the working process of the bearing, particularly under severe working conditions, external pollutants of the bearing can invade the bearing to pollute lubricating grease, and the service life of the bearing is reduced. Sealing self-aligning roller bearings is thus becoming a developing direction in the industry.
However, when the aligning roller bearing is aligned, the inner ring and the outer ring are dislocated, and the difficulty is brought to the increase of the sealing structure. Patent application number 200580034457.3 discloses a corrugated seal which retains a large aligning angle of the original bearing, but the seal is not practical enough to affect the rotation of the bearing; the patent of application number 201210301568.8 discloses a double-layer seal, which has a good sealing effect when the bearing is aligned, but the seal occupies more internal space of the bearing, is easy for other parts to contact, and sacrifices a certain aligning angle of the bearing. Application number 201410119526.1 discloses a cone-shaped seal that increases the bearing width, which is limited to use in a particular application. The patent application nos. 201611129578.2 and 201280068646.2 disclose a seal built into the outer race groove, which is a structure that is more present in the market at present. However, this structure still has a difficulty in processing, and there is a risk of the seal falling off.
Disclosure of Invention
The invention discloses a sealed self-aligning roller bearing for solving the problems.
The aim of the invention can be achieved by adopting the following technical scheme:
The sealed self-aligning roller bearing comprises an inner ring, an outer ring, a first row of rolling bodies, a middle spacer, a second row of rolling bodies and a retainer, wherein the first row of rolling bodies, the middle spacer, the second row of rolling bodies and the retainer are positioned in the inner ring and the outer ring; the two side end surfaces of the outer ring are provided with a notch, and the notch is positioned at one end of the two side end surfaces of the outer ring, which is close to the inner ring; a first framework seal and a second framework seal are arranged between the inner ring and the outer ring, and the first framework seal and the second framework seal are respectively positioned at the left side and the right side of the bearing, and gaps are reserved among the first row of rolling bodies, the second row of rolling bodies and the retainer, so that the aligning performance of the aligning roller bearing is ensured to be as large as possible; the upper ends of the first framework seal and the second framework seal are bonded with the bottom surface of the groove corresponding to the outer ring and fixedly connected with the outer ring, and the lower ends of the first framework seal and the second framework seal are bonded with the inner ring in a sealing manner through double-lip rubber; the first framework seal is provided with a framework formed by pressing steel plates; the framework is provided with a vertical section I; the upper end of the vertical section I is bent inwards to form a bent section and then extends upwards to form a vertical section II; the vertical section II is attached to the corresponding notch on the outer ring; the first framework seal is also provided with a pressing sleeve arranged in the notch; the outer wall surface of the pressing sleeve is flush with the outer wall surface of the outer ring, and the end surface of the pressing sleeve serves as a part of the end surface of the outer ring of the bearing and is stressed together with the end surface of the outer ring of the bearing; the second framework sealing structure is the same as the first framework sealing structure; the lower end of the vertical section of the framework is inwards bent and then matched with double-lip rubber; the double-lip rubber is provided with a first lip close to the roller side; the first lip is vertically pressed to the circular arc raceway of the inner ring, and the second lip on the outer side of the bearing is obliquely pressed to the inclined plane of the end face of the inner ring.
The circumference of the notch on the outer ring is provided with more than three threaded holes for fixing the upper ends of the first framework seal and the second framework seal.
The first and second pressing sleeves are respectively used for pressing the first and second framework seals on two sides of the bearing, and the pressing sleeves are provided with more than three countersunk holes uniformly distributed on the circumference, so that the installation is convenient, and the countersunk holes are sector-shaped elongated holes.
The first and second skeletons are formed by pressing steel plates, the plate thickness is 0-5 mm, the upper ends are vertical, and the included angle a1 between the vertical section I and the bending section is the same as the included angle a2 between the vertical section II and the bending section and is 145 degrees+/-5 degrees; the bending angle a3=100° ±5° of the lower end of the vertical section i; the diameter dimension L1 of the corner of the vertical section I and the bending section is larger than the diameter dimension L2 of the chamfer of the bearing outer ring raceway, more available space is created for the inside of the bearing, and the roller is not easy to touch the framework, so that the bearing can realize aligning within the range of 1.5 degrees or even 2 degrees.
The first lip and second lip included angle a5=90° ±5°; the vertical first lip is bonded with the steel skeleton through a corner a6=a7=140° ±5°, and the inclined second lip is bonded with the steel skeleton through a corner a7=60° ±5°; the first lip has a reduction L3 > 0.2 and the second lip has a reduction L4 > 0.2.
The maximum aligning angle equation of the bearing calculated according to the invention is as follows:
Compared with other sealing aligning roller bearings, the sealing aligning roller bearing provided by the invention has the advantages that the bearing capacity of the bearing has small influence and the aligning angle is large; the bearing sealing structure can act as an outer ring end face stress; the seal and the outer ring are integrated, and the seal is not out of position or falls off due to frequent dislocation of the inner ring and the outer ring of the bearing. In addition, the manufacturing is simpler, and the engineering application prospect is better; the maximum aligning angle obtained by engineering application is larger than 1 degree 30', which is higher than the industry level.
Drawings
Fig. 1 is a schematic structural view of a sealed self-aligning roller bearing of the present invention.
Fig. 2 is a schematic view of the seal-fixing of the present invention.
Fig. 3-1 and 3-2 are schematic views of a press sleeve fan-shaped lengthened counterbore of the present invention.
FIG. 4 is a schematic view of a pressed steel sheet seal skeleton of the present invention.
Fig. 5 and 6 are schematic views of the skeleton seal lip of the present invention.
Fig. 7 is a schematic diagram of the calculation of the aligning angle of the present invention.
In the figure: 1. the inner ring, 2, the outer ring, 3, the first row of rolling elements, 4, the middle ring, 5, the second row of rolling elements, 6, the retainer, 7, the first pressing sleeve, 8, the first framework seal, 9, the second pressing sleeve, 10, the second framework seal, 11, the countersunk head screw, 12, the outer ring end face, 13, the pressing sleeve outer end face, 14, the first lip, 15, the second lip, 16 inner ring arc rolling surface, 17 and inner ring end face inclined plane.
Detailed Description
The invention will be described with reference to the drawings and specific embodiments.
As shown in fig. 1, the sealed self-aligning roller bearing comprises an inner ring 1, an outer ring 2, a first row of rolling bodies 3, a middle spacer 4, a second row of rolling bodies 5, a retainer 6, a first pressing sleeve 7, a first framework seal 8, a second pressing sleeve 9, a second framework seal 10 and a plurality of countersunk head screws 11. The first framework seal 8 and the second framework seal 9 are respectively positioned at the left side and the right side of the bearing, the upper end of the first framework seal is abutted against the concave plane groove of the end face of the outer ring 2, and the first framework seal 8, the second framework seal 9 and the outer ring 2 of the bearing are integrated by fixing the first pressing sleeve 7 and the second pressing sleeve 9 through countersunk screws 11 uniformly distributed on more than three circumferences after the first pressing sleeve 7 and the second pressing sleeve 9 are pressed.
In order to complete the installation of the sealed self-aligning roller bearing, the outer ring 2 is provided with concave plane grooves which are machined on the end surfaces of two sides, and more than three threaded holes are circumferentially distributed on the plane grooves. The machined planar groove is easier to machine than the existing concave groove. The first pressing sleeve 7, the first framework seal 8, the second pressing sleeve 9 on the other side and the second framework seal 10 are provided with the same number of holes uniformly distributed on the circumference for connecting the first pressing sleeve, the first framework seal 8, the second pressing sleeve and the second framework seal 10 into a whole through countersunk screws.
Since the bearing is a common part, the bearing of the same type may be used in different occasions, the end face 12 of the bearing outer ring 2 is a supporting surface in the use of the bearing in some occasions, and may bear axial force, so, in order to meet all the possibilities in the use of the bearing, as shown in fig. 2, the end face 12 of the outer ring 2 is leveled with the outer end face 13 of the first pressure sleeve 7, so that the end face 13 of the pressure sleeve 7 can serve as a part of the end face 12 of the bearing outer ring 2, and the pressure sleeve 7 can bear force in the use of the bearing. Therefore, the width of the concave plane groove of the outer ring 2 is equal to the width of the pressing sleeve 7 plus the thickness of the skeleton seal 8, and the holes on the first pressing sleeve 7 and the second pressing sleeve 9 are counter sunk holes. The design makes up for the partial missing of the end face of the outer ring 2 after the end face is grooved.
As shown in fig. 2, in order to make the bearing inner space large enough, the diameter dimension L1 of the first corner of the first skeleton seal 8 is larger than the diameter dimension L2 of the bearing outer ring raceway chamfer. The inner space of the bearing is large, enough dislocation space of the inner ring and the outer ring of the bearing is reserved, the first row of rolling bodies 3, the second row of rolling bodies 5 and the retainer 6 in the bearing are not easy to touch the first framework seal 8 and the second framework seal 10 at the two ends, the aligning performance of the aligning roller bearing is ensured to be as large as possible, and the aligning performance of the aligning roller bearing can reach the range of 1.5 degrees or even 2 degrees according to different bearing sizes.
As shown in fig. 3-1 and 3-2, in order to align holes in the circumferential direction of each part, the countersunk head screws 11 are convenient to install, and countersunk head holes of the first pressing sleeve 7 and the second pressing sleeve 9 are fan-shaped elongated holes.
As shown in fig. 4, the upper section of the first skeletal seal 8 is a pressed steel plate, the plate thickness is 0-5 mm, the upper end is vertical, then two corners are pressed, the angle a1=a2=145° ±5°, one corner is pressed at the lower end, and the angle a3=100° ±5°. The shape is simple, the manufacturing of the stamping grinding tool is simple, and the manufacturing is easy.
As shown in fig. 5 and 6, the middle and lower parts of the first skeleton seal 8 are made of double-lip rubber, the first lip 14 is in a vertical shape, the second lip 15 is in an inclined shape, an included angle a5=90° ±5° between the first lip 14 and the second lip 15, the vertical first lip 14 is bonded with the pressed steel plate through a corner a6=a7=140° ±5°, and the inclined second lip 15 is bonded with the pressed steel plate through a corner a4=60° ±5°. The tail of the first lip 14 is vertically pressed against the inner ring arc roller surface 16, and the rolling reduction L3 is more than 0.2; the second lip 15 is obliquely pressed against the inclined surface 17 of the end face of the inner ring, and the reduction L4 is more than 0.2.
As shown in fig. 5, the included angle a8=60° ±5° between the inclined surface 17 of the inner ring end surface and the vertical direction of the inner ring end surface is verified to be capable of aligning the bearing, and when the inner ring 1 and the outer ring 2 are dislocated, at least one of the first lip 14 and the second lip 15 is pressed on the inner ring, so as to ensure the sealing effect of the bearing.
The second pressure jacket 9 and the second frame seal 10 on the other side of the bearing have the same features as the first pressure jacket 7 and the first frame seal 8 described above.
The bearing centering angle is calculated as follows:
As shown in fig. 7, when the bearing is aligned, point B of 6 of the retainer is in rotational contact with point a of the seal, and the angle δ formed at this time is the maximum aligning angle of the bearing.
Establishing a calculation geometric figure; o point is the bearing center, AE T OE, OE is the bearing center line; then
（1）
Wherein, the width of the C-outer ring is mm; l 5 -width of the outer ring seal groove, mm; l 6 -width of sealing cover, mm; l 7 -seal lip width, mm.
In triangular AOE:
（2）
（3）
Where d 1 -radius of seal lip A, mm.
In fig. 7, point B is the cage possible contact point, BF Γ, OF is the roller centerline; then
（4）
Wherein L is the length of the roller, mm; s-distance from the bottom of the retainer pocket to the bottom of the retainer is mm.
In triangle BOF:
（5）
The maximum centering angle delta is
（6）
Wherein, the contact angle and the degree of the alpha-aligning roller bearing are as follows.
Summarizing the steps (1) - (6) into an equation:
The self-aligning roller bearing applied to the code 22326CC-2RS is calculated, and the calculated data and the result are shown in the following table. From the results, it can be seen that the bearing aligning angle exceeds 1 ° 30' (typically 1 ° in industry).
Aligning angle calculation table
The technology is not detailed in the prior art.
Claims (3)
1. The sealed self-aligning roller bearing comprises an inner ring, an outer ring, a first row of rolling bodies, a middle spacer, a second row of rolling bodies and a retainer, wherein the first row of rolling bodies, the middle spacer, the second row of rolling bodies and the retainer are positioned in the inner ring and the outer ring; the method is characterized in that: the two side end surfaces of the outer ring are provided with a notch, and the notch is positioned at one end of the two side end surfaces of the outer ring, which is close to the inner ring; a first framework seal and a second framework seal are arranged between the inner ring and the outer ring, and the first framework seal and the second framework seal are respectively positioned at the left side and the right side of the bearing, and gaps are reserved among the first row of rolling bodies, the second row of rolling bodies and the retainer, so that the aligning performance of the aligning roller bearing is ensured to be as large as possible; the upper ends of the first framework seal and the second framework seal are bonded with the bottom surface of the groove corresponding to the outer ring and fixedly connected with the outer ring, and the lower ends of the first framework seal and the second framework seal are bonded with the inner ring in a sealing way through a double-lip rubber sealing lip; the first framework seal is provided with a framework formed by pressing steel plates; the framework is provided with a vertical section I; the upper end of the vertical section I is bent inwards to form a bent section and then extends upwards to form a vertical section II; the vertical section II is attached to the corresponding notch on the outer ring; the first framework seal is also provided with a pressing sleeve arranged in the notch; the outer wall surface of the pressing sleeve is flush with the outer wall surface of the outer ring, and the end surface of the pressing sleeve serves as a part of the end surface of the outer ring of the bearing and is stressed together with the end surface of the outer ring of the bearing; the second framework sealing structure is the same as the first framework sealing structure; the lower end of the vertical section II of the framework is inwards bent and then is matched with a double-lip rubber sealing lip; the double-lip rubber sealing lip is provided with a first lip close to the rolling body side; the first lip is vertically pressed to the arc raceway of the inner ring, and the second lip on the outer side of the bearing is obliquely pressed to the inclined plane of the end face of the inner ring;
More than three threaded holes are circumferentially distributed on the notch of the outer ring and used for fixing the upper ends of the first framework seal and the second framework seal;
The first pressing sleeve corresponds to the first framework seal, and the second pressing sleeve corresponds to the second framework seal; the first pressing sleeve and the second pressing sleeve are respectively used for pressing the first framework seal and the second framework seal on two sides of the bearing, and more than three countersunk holes uniformly distributed on the circumference of the pressing sleeve are formed in the circumference of the pressing sleeve, so that the installation is convenient, and the countersunk holes are fan-shaped elongated holes;
The included angle a5=90° ±5° between the first lip and the second lip, the vertical first lip is bonded to the steel skeleton via the corner a6 and the corner a7, a6=a7=140° ±5°, and the diagonal second lip is bonded to the steel skeleton via the corner a4, a4=60° ±5°.
2. A sealed self-aligning roller bearing as claimed in claim 1 wherein: the first and second skeletons are formed by pressing steel plates, the plate thickness is 0-5 mm, the upper ends are vertical, and the included angle a1 between the vertical section I and the bending section is the same as the included angle a2 between the vertical section II and the bending section and is 145 degrees+/-5 degrees; the bending angle a3=100° ±5° of the lower end of the vertical section i; the diameter dimension L1 of the corner of the vertical section I and the bending section is larger than the diameter dimension L2 of the chamfer of the bearing outer ring raceway, more available space is created for the inside of the bearing, and the rolling bodies are not easy to touch the framework, so that the bearing can realize aligning within the range of 1.5-2 degrees.
3. A sealed self-aligning roller bearing as claimed in claim 1 wherein: the calculation equation of the maximum aligning angle of the sealed aligning roller bearing is as follows:
。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111374904.7A CN113898668B (en) | 2021-11-19 | 2021-11-19 | Sealed aligning roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111374904.7A CN113898668B (en) | 2021-11-19 | 2021-11-19 | Sealed aligning roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113898668A CN113898668A (en) | 2022-01-07 |
| CN113898668B true CN113898668B (en) | 2024-04-26 |
Family
ID=79194789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111374904.7A Active CN113898668B (en) | 2021-11-19 | 2021-11-19 | Sealed aligning roller bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN113898668B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3926493A1 (en) * | 1989-08-10 | 1991-02-14 | Krupp Polysius Ag | Machine with driven shaft mounted in two bearings - has frame, with inner and outer ring with rollers between and two side bearing covers |
| WO2010099776A1 (en) * | 2009-03-06 | 2010-09-10 | Schaeffler Technologies Gmbh & Co. Kg | Sealing assembly for a rolling bearing and spherical rolling bearing comprising the sealing assembly |
| WO2013007545A1 (en) * | 2011-07-08 | 2013-01-17 | Schaeffler Technologies AG & Co. KG | Spherical roller bearing with seal arrangement, and fin stabilizer comprising said spherical roller bearing |
| CN103328842A (en) * | 2010-11-25 | 2013-09-25 | Skf公司 | Rolling bearing having interchangeable seal |
| JP2014001811A (en) * | 2012-06-19 | 2014-01-09 | Nsk Ltd | Self-aligning roller bearing with sealing device |
| JP2015161405A (en) * | 2014-02-28 | 2015-09-07 | 日本精工株式会社 | Roller bearing with seal |
| JP2017061972A (en) * | 2015-09-24 | 2017-03-30 | Ntn株式会社 | Rolling bearing |
| CN207906286U (en) * | 2017-11-21 | 2018-09-25 | 洛阳Lyc轴承有限公司 | A kind of belt conveyor's pulley self-aligning roller bearing |
| US10408259B1 (en) * | 2018-01-25 | 2019-09-10 | Aktiebolaget Skf | Self-aligning roller bearing |
| CN113153900A (en) * | 2021-04-21 | 2021-07-23 | 嘉兴嘉优易轴承科技有限公司 | Gradual change compensation formula bearing seal structure with aligning function |
-
2021
- 2021-11-19 CN CN202111374904.7A patent/CN113898668B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3926493A1 (en) * | 1989-08-10 | 1991-02-14 | Krupp Polysius Ag | Machine with driven shaft mounted in two bearings - has frame, with inner and outer ring with rollers between and two side bearing covers |
| WO2010099776A1 (en) * | 2009-03-06 | 2010-09-10 | Schaeffler Technologies Gmbh & Co. Kg | Sealing assembly for a rolling bearing and spherical rolling bearing comprising the sealing assembly |
| CN103328842A (en) * | 2010-11-25 | 2013-09-25 | Skf公司 | Rolling bearing having interchangeable seal |
| WO2013007545A1 (en) * | 2011-07-08 | 2013-01-17 | Schaeffler Technologies AG & Co. KG | Spherical roller bearing with seal arrangement, and fin stabilizer comprising said spherical roller bearing |
| JP2014001811A (en) * | 2012-06-19 | 2014-01-09 | Nsk Ltd | Self-aligning roller bearing with sealing device |
| JP2015161405A (en) * | 2014-02-28 | 2015-09-07 | 日本精工株式会社 | Roller bearing with seal |
| JP2017061972A (en) * | 2015-09-24 | 2017-03-30 | Ntn株式会社 | Rolling bearing |
| CN207906286U (en) * | 2017-11-21 | 2018-09-25 | 洛阳Lyc轴承有限公司 | A kind of belt conveyor's pulley self-aligning roller bearing |
| US10408259B1 (en) * | 2018-01-25 | 2019-09-10 | Aktiebolaget Skf | Self-aligning roller bearing |
| CN113153900A (en) * | 2021-04-21 | 2021-07-23 | 嘉兴嘉优易轴承科技有限公司 | Gradual change compensation formula bearing seal structure with aligning function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113898668A (en) | 2022-01-07 |
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