CN112815001A - Bearing assembly - Google Patents

Bearing assembly Download PDF

Info

Publication number
CN112815001A
CN112815001A CN202110047907.3A CN202110047907A CN112815001A CN 112815001 A CN112815001 A CN 112815001A CN 202110047907 A CN202110047907 A CN 202110047907A CN 112815001 A CN112815001 A CN 112815001A
Authority
CN
China
Prior art keywords
rolling
bearing
impurities
rolling element
cage
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
Application number
CN202110047907.3A
Other languages
Chinese (zh)
Inventor
徐镜峰
米歇尔·哈贝尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to CN202110047907.3A priority Critical patent/CN112815001A/en
Publication of CN112815001A publication Critical patent/CN112815001A/en
Pending legal-status Critical Current

Links

Images

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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/361—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with cylindrical rollers
    • 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
    • F16C33/46—Cages for rollers or needles
    • 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
    • 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
    • F16C33/6603—Special parts or details in view of lubrication with grease as lubricant

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The bearing provided by the embodiment of the invention comprises: the rolling element mounting pocket is formed in the retainer; the rolling body is arranged in the rolling body mounting pocket; the first gasket is fixedly connected with the retainer and is suitable for being in contact with the rolling surface of the rolling body when the rolling body rotates along a first rotating direction. According to the bearing provided by the embodiment of the invention, when the rotating ring rotates, the rolling body is driven to roll, and when the rolling body rotates along the first rotating direction, impurities in lubricating oil or lubricating grease are hindered by the first liner, and the impurities are attached to or even embedded into the surface of the first liner under the driving of the lubricating oil or the lubricating grease, so that the impurities in the lubricating oil or the lubricating grease can be removed, the influence of the impurities on the bearing can be reduced, and the service life of the bearing is prolonged.

Description

Bearing assembly
Technical Field
The embodiment of the invention relates to the field of machinery, in particular to a bearing.
Background
In order to reduce the resistance of the bearing during operation, lubricating oil or grease is generally added to the raceway of the bearing.
After a long period of operation, some metal chips or other impurities enter the lubricating oil or grease, and these impurities cause wear of various structures such as the rolling elements and the cage, and further cause a reduction in the service life of the bearing.
Therefore, how to reduce the influence of impurities on the bearing and prolong the service life of the bearing becomes a technical problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The embodiment of the invention solves the technical problem of how to reduce the influence of impurities on the bearing.
To solve the above problem, an embodiment of the present invention provides a bearing, including:
a rolling body;
the rolling element mounting pocket is formed in the retainer, and the rolling element is arranged in the rolling element mounting pocket;
the first gasket is fixedly connected with the retainer and is suitable for being in contact with the rolling surface of the rolling body when the rolling body rotates along a first rotating direction.
Optionally, the bearing further comprises:
and the second gasket is fixed on the retainer and is suitable for being in contact with the rolling surface of the rolling body when the rolling body rotates along a second rotation direction.
Alternatively, the first pads may be the same in number as the rolling element mounting pockets and mounted to sidewalls of the rolling element mounting pockets.
Alternatively, the second pads may be the same in number as the rolling element mounting pockets and mounted to sidewalls of the rolling element mounting pockets.
Optionally, the retainer includes a retainer axial portion and a retainer circumferential portion that are fixedly connected to each other, the retainer axial portion along both ends that the axial direction of the retainer extends respectively with retainer circumferential portion fixed connection, retainer circumferential portion with each is enclosed by the retainer axial portion rolling element installation pocket, first liner is fixed in the lateral wall of retainer axial portion, and follows the axial extension of bearing is optional, first liner is fixed in the radial outside of the lateral wall of retainer axial portion.
Optionally, the length of the first pad is greater than one third of the length of the rolling elements in the axial direction of the bearing.
Optionally, a length of the first pad is smaller than a length of the rolling elements in an axial direction of the bearing.
Optionally, the hardness of the first liner is less than the hardness of the cage and the rolling elements.
Optionally, the material of the first gasket is aluminum alloy or rubber.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following advantages:
the bearing provided by the embodiment of the invention comprises: the rolling element mounting pocket is formed in the retainer; the rolling body is arranged in the rolling body mounting pocket; the first gasket is fixedly connected with the retainer and is suitable for being in contact with the rolling surface of the rolling body when the rolling body rotates along a first rotating direction.
In the bearing provided by the embodiment of the invention, when the rotating ring rotates, the rolling body is driven to roll, when the rolling body rotates along the first rotating direction, the lubricating oil or the lubricating grease can flow along with the surface of the rolling body, impurities in the lubricating oil or the lubricating grease can also flow along with the lubricating oil or the lubricating grease, when the impurities flow to the contact surface of the rolling body and the first liner, the impurities cannot pass through the gap between the rolling body and the first liner due to the large particle size of the impurities, so that the impurities can be retained at the position of the first liner, certain power can be generated due to the movement of the impurities by the lubricating oil or the lubricating grease, the impurities are blocked by the first liner, and the impurities can be attached to or even embedded into the surface of the first liner under the driving of the lubricating oil or the lubricating grease, so that the impurities in the lubricating oil or the lubricating grease can be removed, and then can reduce the influence of impurity to the bearing to the life of extension bearing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic longitudinal sectional view of a bearing according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a bearing provided by an embodiment of the present invention;
fig. 3 is a schematic circumferential cross-sectional view of a bearing according to an embodiment of the present invention.
Legend: 1. an outer ring; 2. an inner ring; 3. a rolling body; 4. a holder; 5. a first liner.
Detailed Description
As is known from the background art, impurities in the lubricating oil or grease greatly affect the conventional bearing structure, and reduce the service life of the bearing.
In order to solve the above problem, an embodiment of the present invention provides a bearing, including:
a rolling body;
the rolling element mounting pocket is formed in the retainer, and the rolling element is arranged in the rolling element mounting pocket;
the first gasket is fixedly connected with the retainer and is suitable for being in contact with the rolling surface of the rolling body when the rolling body rotates along a first rotating direction.
In the bearing provided by the embodiment of the invention, when the rotating ring rotates, the rolling body is driven to roll, when the rolling body rotates along the first rotating direction, the lubricating oil or the lubricating grease can flow along with the surface of the rolling body, impurities in the lubricating oil or the lubricating grease can also flow along with the lubricating oil or the lubricating grease, when the impurities flow to the contact surface of the rolling body and the first liner, the impurities cannot pass through the gap between the rolling body and the first liner due to the large particle size of the impurities, so that the impurities can be retained at the position of the first liner, certain power can be generated due to the movement of the impurities by the lubricating oil or the lubricating grease, the impurities are blocked by the first liner, and the impurities can be attached to or even embedded into the surface of the first liner under the driving of the lubricating oil or the lubricating grease, so that the impurities in the lubricating oil or the lubricating grease can be removed, and then can reduce the influence of impurity to the bearing to the life of extension bearing.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, fig. 1 is a schematic longitudinal sectional view of a bearing according to an embodiment of the present invention, fig. 2 is a schematic cross-sectional view of the bearing according to the embodiment of the present invention, and fig. 3 is a schematic circumferential sectional view of the bearing according to the embodiment of the present invention.
An embodiment of the present invention provides a bearing, including:
a rolling body;
the rolling element mounting pocket is formed in the retainer, and the rolling element is arranged in the rolling element mounting pocket;
the first gasket is fixedly connected with the retainer and is suitable for being in contact with the rolling surface of the rolling body when the rolling body rotates along a first rotating direction.
It should be noted that, the disclosure herein, which is suitable for contacting with the rolling surface of the rolling element when the rolling element rotates in the first rotation direction, includes that the first pad contacts with the rolling surface of the rolling element when the rolling element rotates in the first rotation direction, and the first pad does not contact with the rolling surface of the rolling element when the rolling element does not rotate or rotates in the opposite direction, so as to remove impurities in the lubricating oil or the lubricating grease when the rolling element rotates in the first rotation direction, and of course, also includes that the first pad contacts with the rolling surface of the rolling element when the rolling element does not rotate, and also removes impurities in the lubricating oil or the lubricating grease when the rolling element rotates in the first rotation direction, and also includes that the first pad contacts with the rolling surface of the rolling element when the rolling element rotates in the opposite direction to the first rotation direction, therefore, impurities in the lubricating oil or the lubricating grease can be removed when the rolling body rotates along the first rotating direction and rotates in the direction opposite to the first rotating direction.
Of course, as shown in fig. 2, the first rotation direction may be clockwise or counterclockwise.
It will be readily appreciated that the rolling surfaces described herein include: when the rolling body is a cylindrical roller, the rolling surface of the rolling body is the cylindrical surface of the cylindrical roller; when the rolling body is a tapered roller, the rolling surface of the rolling body is a conical surface of the tapered roller; when the rolling body is a spherical roller, the rolling surface of the rolling body is the spherical surface of the spherical roller; correspondingly, other shapes of rollers also have their corresponding rolling surfaces.
In the bearing provided by the embodiment of the invention, when the rotating ring rotates, the rolling body is driven to roll, when the rolling body rotates along the first rotating direction, the lubricating oil or the lubricating grease can flow along with the surface of the rolling body, impurities in the lubricating oil or the lubricating grease can also flow along with the lubricating oil or the lubricating grease, when the impurities flow to the contact surface of the rolling body and the first liner, the impurities cannot pass through the gap between the rolling body and the first liner due to the large particle size of the impurities, so that the impurities can be retained at the position of the first liner, certain power can be generated due to the movement of the impurities by the lubricating oil or the lubricating grease, the impurities are blocked by the first liner, and the impurities can be attached to or even embedded into the surface of the first liner under the driving of the lubricating oil or the lubricating grease, so that the impurities in the lubricating oil or the lubricating grease can be removed, and then can reduce the influence of impurity to the bearing to the life of extension bearing.
Of course, since the rotation direction of the rolling elements is affected by the rotation direction of the rotating ring, the rotation direction of the rotating ring sometimes cannot be uniquely determined, and therefore, in order to ensure that the rolling elements can remove impurities from the lubricating oil or grease when the bearing rotates in both forward and reverse directions, no matter which direction the rolling elements rotate, in one embodiment, the bearing further comprises: and the second gasket is fixed on the retainer and is suitable for being in contact with the rolling surface of the rolling body when the rolling body rotates along a second rotation direction.
The second pad is not shown in the figures, but it will be readily understood that when the first rotational direction is clockwise as shown in the figures, the second rotational direction is counterclockwise.
When the rolling element rotates in a first rotational direction and the first pad is in contact with the rolling surface of the rolling element, the second pad may be in contact with the rolling element or may not be in contact with the rolling element. When the rolling element rotates along a first rotating direction, when the first gasket is in contact with the rolling surface of the rolling element, and when the second gasket is not in contact with the rolling element, the rotating friction force of the rolling element is smaller.
Similarly, when the rolling element rotates in the second rotational direction and the second pad is in contact with the rolling surface of the rolling element, the first pad may be in contact with the rolling element or may not be in contact with the rolling element.
Therefore, by additionally arranging the second gasket, no matter the rolling body rotates along the clockwise direction or rotates along the anticlockwise direction, the gasket is in contact with the rolling body, so that when the rolling body rotates along two directions, impurities in lubricating oil or lubricating grease can be removed by the gasket, the influence of the impurities on the bearing is further reduced, and the service life of the bearing is prolonged.
In order to improve the removal capability of the foreign matter and ensure that the foreign matter of the lubricating oil or the lubricating grease in each pocket can be removed, in one embodiment, the number of the first pads is the same as the number of the rolling element mounting pockets and are mounted to the sidewalls of the rolling element mounting pockets.
By arranging the first gasket on the rolling surface of each rolling body, the first gasket can be contacted with the rolling body when impurities in lubricating oil or lubricating grease flow through the rolling surface of each rolling body, so that part of impurities can be removed when the lubricating oil or the lubricating grease flows through one rolling body every time, and the impurity removal efficiency can be improved.
Similarly, in one embodiment, the number of the second liners may be the same as the number of the rolling element mounting pockets and mounted to the sidewalls of the rolling element mounting pockets.
Specifically, the fixing position of the first gasket may be set as desired. In a specific embodiment, the retainer comprises a retainer axial portion and a retainer circumferential portion which are fixedly connected with each other, two ends of the retainer axial portion extending along the axial direction of the retainer are respectively and fixedly connected with the retainer circumferential portion, the retainer circumferential portion and the retainer axial portion enclose the rolling element mounting pockets, and the first liner is fixed to a side wall of the retainer axial portion and extends in the axial direction of the bearing. When the rolling element is the cylindrical roller, the holder wholly becomes cylindrically, including mutual fixed connection's holder axial part and holder circumference portion, holder circumference portion encircles and locates the side of rolling element, works as when the quantity of holder circumference portion is two, two holder circumference portion can be located the both sides of rolling element, holder axial part then set up with adjacent between the rolling element, be used for with holder axial part encloses into rolling element installation pocket hole separates adjacent rolling element. When the rolling elements are of other types, there may also be corresponding cage axial portions and cage circumferential portions.
Since the retainer axial portion faces the rolling surface of the rolling element, the first spacer is fixed to the side wall of the retainer axial portion and can be fixed better when extending in the axial direction of the bearing, so that the contact position between the first spacer and the rolling surface of the rolling element can be increased, the removal efficiency of the impurities by the first spacer can be improved, the relative fixation of the contact position between the first spacer and the rolling surface of the rolling element can be maintained, the position of the first spacer is prevented from moving or falling off during use, and the service life of the first spacer can be prolonged.
Further, as shown in fig. 2, in one embodiment, the first packing is fixed to a radially outer side of a sidewall of the axial portion of the cage. When the first packing is fixed to the radially outer side of the side wall of the axial portion of the cage, the lubricating oil or grease on the rolling surfaces of the rolling elements can immediately contact the first packing when moving to the side facing the side wall of the axial portion of the cage, so that the impurities can be left on the radially outer edge of the axial portion of the cage without entering the side face of the axial portion of the cage.
In particular, the minimum length of the first spacer can also be set as required, so that, in one embodiment, the length of the first spacer in the axial direction of the bearing is greater than one third of the length of the rolling elements. When the length of the first liner in the axial direction of the bearing is too small, impurities in the lubricating oil or the lubricating grease are not easy to remove, so that the length of the first liner is more than one third of the length of the rolling body, more impurities in the lubricating oil or the lubricating grease can be removed, and the impurities are prevented from influencing the normal operation of the bearing.
Similarly, the maximum length of the first pad may be set as desired, so in one embodiment, the length of the first pad is smaller than the length of the rolling elements in the axial direction of the bearing. Since the lubricant or grease almost flows only on the rolling surfaces of the rolling elements, when the length of the first liner is longer than the length of the rolling elements, the first liner beyond the rolling surfaces of the rolling elements cannot perform a function of removing impurities, but rather causes waste of the material of the first liner, which is not easy to save cost.
In order to reduce the influence of the first liner on the cage and the rolling elements and improve the efficiency of the first liner in removing the impurities, in a specific embodiment, the hardness of the first liner is less than the hardness of the cage and the rolling elements. When the hardness of the first liner is smaller than the hardness of the retainer and the rolling body, the impurities are more easily attached to or embedded into the surface of the first liner under the driving of lubricating oil or lubricating grease, the hardness of the first liner is smaller, the first liner is more easily deformed and wraps the impurities, the impurity removal efficiency can be improved, the influence of the impurities on the bearing is reduced, the service life of the bearing is prolonged, and meanwhile, the phenomenon that the retainer and the rolling body are abraded due to the arrangement of the first liner can be prevented.
Specifically, the material of the first gasket can be set as required, and in a specific embodiment, the material of the first gasket is aluminum alloy or rubber. When the material of first liner is the aluminum alloy, the processing degree of difficulty is low, and hardness is not high moreover, warp easily and wrap up impurity, the efficiency of getting rid of impurity is higher, when the material of first liner is rubber, hardness is very low, warp easily and wrap up impurity, get rid of impurity when higher efficiency, with frictional force between the rolling element is less.
Similarly, as described above, the shape, size, arrangement position, hardness, material, and the like of the first gasket are modified, the second gasket may be modified similarly to the first gasket.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the embodiments of the present invention are disclosed above, the embodiments of the present invention are not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present embodiments, and it is intended that the scope of the present embodiments be defined by the appended claims.

Claims (10)

1. A bearing, comprising:
a rolling body;
the rolling element mounting pocket is formed in the retainer, and the rolling element is arranged in the rolling element mounting pocket;
the first gasket is fixedly connected with the retainer and is suitable for being in contact with the rolling surface of the rolling body when the rolling body rotates along a first rotating direction.
2. The bearing of claim 1, further comprising:
and the second gasket is fixed on the retainer and is suitable for being in contact with the rolling surface of the rolling body when the rolling body rotates along a second rotation direction.
3. The bearing of claim 2, wherein the first pads are the same in number as the rolling element mounting pockets and are mounted to sidewalls of the rolling element mounting pockets.
4. The bearing of claim 2, wherein the second pads are the same in number as the rolling element mounting pockets and are mounted to sidewalls of the rolling element mounting pockets.
5. The bearing according to claim 1, wherein the cage includes a cage axial portion and a cage circumferential portion fixedly connected to each other, both ends of the cage axial portion extending in the axial direction of the cage are fixedly connected to the cage circumferential portion, respectively, the cage circumferential portion and the cage axial portion enclose the respective rolling element mounting pockets, and the first liner is fixed to a side wall of the cage axial portion and extends in the axial direction of the bearing.
6. The bearing of claim 5, wherein the first spacer is fixed to a radially outer side of a sidewall of the axial portion of the cage.
7. The bearing of claim 1, wherein a length of the first pad is greater than one third of a length of the rolling elements in an axial direction of the bearing.
8. The bearing of claim 1, wherein a length of the first pad is smaller than a length of the rolling elements in an axial direction of the bearing.
9. The bearing of claim 1, wherein the first liner has a hardness less than a hardness of the cage and the rolling elements.
10. The bearing of claim 9, wherein the material of the first pad is an aluminum alloy or rubber.
CN202110047907.3A 2021-01-14 2021-01-14 Bearing assembly Pending CN112815001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110047907.3A CN112815001A (en) 2021-01-14 2021-01-14 Bearing assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110047907.3A CN112815001A (en) 2021-01-14 2021-01-14 Bearing assembly

Publications (1)

Publication Number Publication Date
CN112815001A true CN112815001A (en) 2021-05-18

Family

ID=75869291

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110047907.3A Pending CN112815001A (en) 2021-01-14 2021-01-14 Bearing assembly

Country Status (1)

Country Link
CN (1) CN112815001A (en)

Similar Documents

Publication Publication Date Title
US8342535B2 (en) Non-contact labyrinth seal assembly and method of construction thereof
WO2009150935A1 (en) Retainer, deep groove ball bearing, and bearing with seal
WO2012114726A1 (en) Double-row angular ball bearing
JP2007032612A (en) Roller bearing
US6817769B2 (en) Roller bearing having high performance bearing seal and cartridge
JP5782777B2 (en) Ball bearing cage and ball bearing
JP3684642B2 (en) Roller bearing cage
CN112815001A (en) Bearing assembly
JP4140143B2 (en) One-way clutch and pulley unit using the same
JPH09291942A (en) Radial rolling bearing
CN114876964A (en) Seal assembly and rolling bearing
US4664538A (en) Sealed bearing assembly
JP2012117628A (en) Sealing device and rolling bearing
CN212643317U (en) Multi-ring composite roller bearing
JP2007040512A (en) Tapered roller bearing
JP4453804B2 (en) Rolling bearing
JP2013148115A (en) Deep groove ball bearing and bearing device
CN115552136A (en) Sealing device
JP2005180575A (en) Sealed rolling bearing
JP2007327518A (en) Cylindrical roller bearing and its cage
JPH1082424A (en) Holder for rolling bearing
JP4311977B2 (en) Thrust ball bearing
CN108331835A (en) Biserial closed type taper roller roller bearing
CN217130090U (en) Rolling bearing
JP2005155877A (en) Rolling bearing

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20210518