CN107152461A - Nonstandard four-point contact ball - Google Patents

Nonstandard four-point contact ball Download PDF

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Publication number
CN107152461A
CN107152461A CN201710523058.8A CN201710523058A CN107152461A CN 107152461 A CN107152461 A CN 107152461A CN 201710523058 A CN201710523058 A CN 201710523058A CN 107152461 A CN107152461 A CN 107152461A
Authority
CN
China
Prior art keywords
ring
lip
nonstandard
base portion
point contact
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
CN201710523058.8A
Other languages
Chinese (zh)
Inventor
陈庆熙
赵荣多
王冰
庞建林
陈太平
刘双喜
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.)
TCB BEARING MANUFACTURING Co Ltd
Original Assignee
TCB BEARING MANUFACTURING Co Ltd
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 TCB BEARING MANUFACTURING Co Ltd filed Critical TCB BEARING MANUFACTURING Co Ltd
Priority to CN202011625378.2A priority Critical patent/CN112815011A/en
Priority to CN201710523058.8A priority patent/CN107152461A/en
Publication of CN107152461A publication Critical patent/CN107152461A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72Sealings
    • F16C33/76Sealings of ball or roller bearings
    • F16C33/78Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7803Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
    • F16C33/7806Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for spherical roller bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72Sealings
    • F16C33/76Sealings of ball or roller bearings
    • F16C33/78Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7816Details of the sealing or parts thereof, e.g. geometry, material
    • F16C33/782Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
    • F16C33/7823Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of sealing lips
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72Sealings
    • F16C33/76Sealings of ball or roller bearings
    • F16C33/78Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/784Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
    • F16C33/7843Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
    • F16C33/7853Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72Sealings
    • F16C33/76Sealings of ball or roller bearings
    • F16C33/78Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/784Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
    • F16C33/7859Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a further sealing element
    • F16C33/7866Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a further sealing element with sealing lips

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

Abstract

The embodiment of the invention discloses a kind of nonstandard four-point contact ball, the bearing at least includes outer ring, inner ring, and a row steel ball, the first sealing ring and back-up ring are sequentially provided with outside in the bearing right side, the its left end face is additionally provided with the second sealing ring, first sealing ring includes the first base portion and the first head, first base portion, back-up ring, the outer surface of inner ring and the inner surface of outer ring surround to form cavity, first head at least includes the first outer lip, lip and the first epipharynx in first, first outer lip, it is at least the first airtight cavity and the second airtight cavity that lip and the first epipharynx, which are used for cavity cut-off, in first.The embodiment of the present invention, greatly improves the sealing property of nonstandard four-point contact ball, extends the service life of nonstandard four-point contact ball.

Description

Nonstandard four-point contact ball
Technical field:
The present invention relates to a kind of bearing, especially a kind of nonstandard four-point contact ball.
Background technology:
Four-point contact ball generally includes inner ring, outer ring, several steel balls and retainer.Traditional four-point contact ball Hold usually that open type is i.e. without sealed, lubricating system is generally oil lubrication.Therefore, kind of bearings is applied under cleaning ambient. And cause bearing early probably due to impurity particle enters Bearing inner for the pollution environment containing dust impurities, kind of bearings Phase fatigue flake.
With the attention to bearing interior sealing effect, back-up ring and sealing ring matching structure design are occurred in that at present, however, single The seal ring seal effect of layer is limited, and the situation of accumulation dust still easily occurs in Bearing inner.
The sealing property of four-point contact ball how is lifted, to ensure the cleaning inside and service life of bearing, is turned into One urgent problem to be solved.
The content of the invention:
To overcome the problem of existing nonstandard four-point contact ball sealing is poor, the embodiments of the invention provide one kind is nonstandard Four-point contact ball.
Nonstandard four-point contact ball, the bearing at least includes outer ring, inner ring and a row steel ball, the steel ball position Between the inner surface of the outer ring and the outer surface of inner ring, be sequentially provided with outside in the bearing right side the first sealing ring and Back-up ring, its left end face is additionally provided with the second sealing ring, and the back-up ring, the first sealing ring and the second sealing ring are located at described Between the inner surface of outer ring and the outer surface of inner ring, first sealing ring includes the first base portion and the first head, described first Base portion, back-up ring, the outer surface of inner ring and the inner surface of outer ring surround to form cavity, and first head at least includes outside first It is at least that lip and the first epipharynx, which are used for cavity cut-off, in lip and the first epipharynx in lip, first, first outer lip, first First airtight cavity and the second airtight cavity.
Further, above-mentioned at least described first outer lip is closely contradicted in the internal face in the back-up ring, at least described first The close conflict of lockjaw lip in the outer surface of the inner ring, described first contradict the back-up ring internal face or the inner ring it is outer On surface.
Further, back-up ring described above includes joint portion and wall, and the joint portion and the outer surface of the inner ring are close Contact, the internal face of the back-up ring is located on the wall.
Further, the outer surface of inner ring described above is provided with some necks, institute in spaced apart in the bearing circumferential direction State joint portion and be formed with the fixture block for stretching into the neck in the correspondence position of the neck.
Further, the second sealing ring described above includes the second base portion and the second head, and second head at least includes Second epipharynx and the second outer lip, second epipharynx and the second outer lip are closely contradicted in the outer surface of the inner ring, so that the The outer surface of two epipharynxs, the second outer lip and the inner ring is surrounded to form the 3rd airtight cavity.
Further, the first bulge loop and the first ditch abutted with the first bulge loop are provided with the outer surface of inner ring described above Road, second outer lip is closely contacted at first bulge loop, and second epipharynx closely contacts at first ditch The inner side edge in road.
Further, the second raceway groove and triple channel are formed with the inner surface of outer ring described above, second base portion is consolidated Due to second raceway groove, first base portion is fixed on the triple channel.
Further, the first head described above is interspersed in the end of first base portion, and second head fits in institute State the second base portion internal face.
Further, the outer surface of the second outer lip described above, the second base portion and the inner ring is surrounded to form the 4th closed chamber Body.
Further, the material of the first base portion described above, the second base portion and back-up ring is steel, first head and second The material in portion is nitrile rubber.
The embodiment of the present invention includes the first base portion and first sealing ring on the first head by providing, and the first head is using bag Include three lip seal structures of lip and the first epipharynx in the first outer lip, first so that bearing sequentially forms back-up ring, first from outside to inside The multi-level dustproof construction of airtight cavity, the second airtight cavity, and because the first airtight cavity and the second airtight cavity are Absolute construction with good seal performance, external dust, which needs to sequentially enter the first airtight cavity and the second airtight cavity, just to be had Probability enters Bearing inner, greatly improves the sealing property of nonstandard four-point contact ball, extends nonstandard 4 points of contacts The service life of ball bearing.
Brief description of the drawings:
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.
Fig. 1 is the structural representation in the section of the nonstandard four-point contact ball of the embodiment of the present invention;
Fig. 2 is the structural representation behind hiding first head in Fig. 1 enlarged top views;
Fig. 3 is the structural representation in the section of the first sealing ring;
Fig. 4 is the structural representation in the section of the second sealing ring.
Embodiment:
In order that technical problem solved by the invention, technical scheme and beneficial effect are more clearly understood, below in conjunction with Drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used To explain the present invention, it is not intended to limit the present invention.
When the embodiment of the present invention refers to the ordinal numbers such as " first ", " second ", unless based on context it expresses suitable really The meaning of sequence, it should be understood that only play differentiation and be used.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected;Can To be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in invention.
As shown in Figures 1 to 4, the embodiments of the invention provide a kind of nonstandard four-point contact ball, the bearing is at least Including outer ring 1, the row steel ball 3 of inner ring 2 and one, the steel ball 3 be located at the outer ring 1 inner surface and inner ring 2 outer surface it Between, the first sealing ring 4 and back-up ring 5 are sequentially provided with outside in the bearing right side, and it is close that its left end face is additionally provided with second Seal 6, the back-up ring 5, the first sealing ring 4 and the second sealing ring 6 are located at the inner surface and the appearance of inner ring 2 of the outer ring 1 Between face, first sealing ring 4 includes the first base portion 41 and the first head 42, first base portion 41, back-up ring 5, inner ring 2 The inner surface of outer surface and outer ring 1 surrounds to form cavity 7, and first head 42 at least includes lip in the first outer lip 421, first 422 and first epipharynx 423, the epipharynx 423 of lip 422 and first is used to separate the cavity 7 in first outer lip 421, first It is at least the first airtight cavity 71 and the second airtight cavity 72.
In the present embodiment, cavity 7 is the main thoroughfare that external dust enters Bearing inner, by being set in cavity 7 The epipharynx 423 of lip 422 and first and in the epipharynx 423 of lip 422 and first in first outer lip 421, first, the first outer lip 421, first One base portion 41 and the first head 42, first base portion 41, back-up ring 5, the outer surface of inner ring 2 or the inner surface interference of outer ring 1 are matched somebody with somebody Close, it is at least the first airtight cavity 71 and the second airtight cavity 72 that cavity 7, which is separated, improves the dust seal of bearing Energy.
Non-limiting as a kind of embodiment, lip 422 is closely contradicted in the first outer lip 421 and first described above In the internal face of the back-up ring 5, first epipharynx 423 is closely contradicted in the outer surface of the inner ring 2.The He of first outer lip 421 In first the end of lip 422 along bearing direction radially outward so that dust contact the first outer lip 421 and first in lip 422 when, The root of lip 422 can be slipped in the first outer lip 421 and first under gravity and by root backstop, it is to avoid dust is further Permeated to Bearing inner.
Back-up ring 5 described above includes joint portion 51 and wall 52, and the joint portion 51 and the outer surface of the inner ring 2 are close Contact, the internal face of the back-up ring 5 is located on the wall 52.In the present embodiment, joint portion 51 is along the axially arranged of bearing, Because joint portion 51 and the outer surface of the inner ring 2 are in close contact, the probability that dust is entered bearing by joint portion 51 is reduced, together When, wall 52 is extended by the outwardly circle 1 close to inner ring 2, wall 52 and the inner surface formation minute opening of outer ring 1, is made It is in circuitous configuration to obtain cavity 7 overall, reduce further the probability that dust enters bearing.
Exemplary, in the present embodiment, lip 422 surrounds that to form first closed in wall 52, the first outer lip 421 and first The epipharynx 423 of lip 422 and first surrounds to form the second airtight cavity 72 in cavity 71, wall 52, the outer surface of inner ring 2, first.
The outer surface of inner ring 2 described above is provided with some necks 21, the knot in spaced apart in the bearing circumferential direction Conjunction portion 51 is formed with the fixture block 511 for stretching into the neck 21 in the correspondence position of the neck 21.By in the outer of inner ring 2 Surface sets neck 21, and the correspondence position in joint portion 51 sets and stretches into the fixture block 511 of neck 21, on the one hand thoroughly avoids Dust is entered the possibility of bearing by joint portion 51, on the other hand due to the mating reaction of fixture block 511 and neck 21, more conducively back-up ring 5 overall positioning, enhances the bond strength of back-up ring 5 and inner ring 2, the risk that reduction back-up ring is released.
Non-limiting as a kind of embodiment, the second sealing ring 6 described above includes the second base portion 61 and second Head 62, second head 62 at least includes outside the second epipharynx 621 and the second outer lip 622, second epipharynx 621 and second Lip 622 is close to be contradicted in the outer surface of the inner ring 2 so that the second epipharynx 621, the second outer lip 622 and the inner ring 2 it is outer Surface is surrounded to form the 3rd airtight cavity 8.The dust that 3rd airtight cavity 8 can effectively completely cut off the rear portion of steel ball 3 enters in bearing, entirely Face has ensured the sealing property of bearing.
The first bulge loop 22 and the first raceway groove abutted with the first bulge loop 22 are provided with the outer surface of inner ring 2 described above 23, second outer lip 622 is closely contacted at first bulge loop 22, and second epipharynx 621 closely contacts at the institute State the inner side edge of the first raceway groove 23.The one side of first bulge loop 22 serves the effect of certain backstop dust, in addition, said structure So that the first raceway groove 23 is placed in the 3rd airtight cavity 8, the 3rd airtight cavity 8 of polygonal cross-section is compared to planar structure For, also with preferable anti-dust performance.
The second raceway groove 11 and triple channel 12 are formed with the inner surface of outer ring 1 described above, second base portion 61 is consolidated Due to second raceway groove 11, first base portion 41 is fixed on the triple channel 12.In the present embodiment, the first base portion 41 With " P " type base, specifically, " P " type base is fixed on the triple channel 12, the flat side and second of " P " type base The side wall of raceway groove 11 or triple channel 12 is in close contact.
It is used as a kind of preferred embodiment, the appearance of the second outer lip 622 described above, the second base portion 61 and the inner ring 2 Face is surrounded to form the 4th airtight cavity (accompanying drawing is not shown).The end of second base portion 61 is extensible to be formed sealing baffle (accompanying drawing to be not Show), the outer surface of sealing baffle and the inner ring 2 is in close contact, to form the 4th airtight cavity, the 4th airtight cavity Positioned at the outside of the 3rd airtight cavity 8, the dust seal performance of bearing can be further enhancing.
Non-limiting as a kind of specific embodiment, first head 42 is interspersed in the end of first base portion 41 Portion, second head 62 fits in the internal face of the second base portion 61.First base portion 41 described above, the second base portion 61 and gear The material of circle 5 is steel, and the material on first head 42, the second head 62 and sealing baffle is nitrile rubber.
The embodiment of the present invention includes the first base portion and first sealing ring on the first head by providing, and the first head is using bag Include three lip seal structures of lip and the first epipharynx in the first outer lip, first so that bearing sequentially forms back-up ring, first from outside to inside The multi-level dustproof construction of airtight cavity, the second airtight cavity, and because the first airtight cavity and the second airtight cavity are Absolute construction with good seal performance, external dust, which needs to sequentially enter the first airtight cavity and the second airtight cavity, just to be had Probability enters Bearing inner, greatly improves the sealing property of nonstandard four-point contact ball, extends nonstandard 4 points of contacts The service life of ball bearing.
It is to combine one or more embodiments that particular content is provided as described above, does not assert the specific reality of the present invention Apply and be confined to these explanations.Such as the first head is not limited only to three bead structures, can also be four lips or five bead structures;Described first It is the first airtight cavity and the second airtight cavity that lip and the first epipharynx, which are not limited only to cavity cut-off, in outer lip, first, is gone back More airtight cavities etc. can be separated.It is all approximate with method of the invention, structure etc., identical, or for present inventive concept Under the premise of make some technology deduction or replace, should all be considered as protection scope of the present invention.

Claims (10)

1. nonstandard four-point contact ball, the bearing at least includes outer ring, inner ring and a row steel ball, the steel ball is located at Between the inner surface of the outer ring and the outer surface of inner ring, the first sealing ring and gear are sequentially provided with outside in the bearing right side Circle, its left end face is additionally provided with the second sealing ring, and the back-up ring, the first sealing ring and the second sealing ring are located at described outer Between the inner surface of circle and the outer surface of inner ring, it is characterised in that first sealing ring includes the first base portion and the first head, First base portion, back-up ring, the outer surface of inner ring and the inner surface of outer ring surround to form cavity, and first head at least includes Lip and the first epipharynx are used to separate the cavity in lip and the first epipharynx in first outer lip, first, first outer lip, first It is at least the first airtight cavity and the second airtight cavity.
2. nonstandard four-point contact ball as claimed in claim 1, it is characterised in that at least described first outer lip is closely contradicted In the internal face of the back-up ring, at least described first epipharynx closely contradicts the lip in the outer surface of the inner ring, described first and supported Touch on the internal face of the back-up ring or the outer surface of the inner ring.
3. nonstandard four-point contact ball as claimed in claim 2, it is characterised in that the back-up ring includes joint portion and vertical Wall, the joint portion and the outer surface of the inner ring are in close contact, and the internal face of the back-up ring is located on the wall.
4. the nonstandard four-point contact ball as described in any one of claims 1 to 3, it is characterised in that the appearance of the inner ring Face in the bearing circumferential direction in being spaced apart provided with some necks, and the joint portion is formed with the correspondence position of the neck Fixture block for stretching into the neck.
5. nonstandard four-point contact ball as claimed in claim 4, it is characterised in that second sealing ring includes the second base Portion and the second head, second head at least include the second epipharynx and the second outer lip, and second epipharynx and the second outer lip are equal It is close to contradict in the outer surface of the inner ring, so that the outer surface of the second epipharynx, the second outer lip and the inner ring is surrounded to form the Three airtight cavities.
6. nonstandard four-point contact ball as claimed in claim 5, it is characterised in that be provided with the outer surface of the inner ring First bulge loop and the first raceway groove abutted with the first bulge loop, second outer lip is closely contacted at first bulge loop, described Second epipharynx closely contacts at the inner side edge of first raceway groove.
7. nonstandard four-point contact ball as claimed in claim 6, it is characterised in that be formed with the inner surface of the outer ring Second raceway groove and triple channel, second base portion are fixed on second raceway groove, and first base portion is fixed on the described 3rd Raceway groove.
8. nonstandard four-point contact ball as claimed in claim 7, it is characterised in that first head is interspersed in described the The end of one base portion, second head fits in the second base portion internal face.
9. nonstandard four-point contact ball as claimed in claim 8, it is characterised in that second outer lip, the second base portion and The outer surface of the inner ring is surrounded to form the 4th airtight cavity.
10. nonstandard four-point contact ball as claimed in claim 9, it is characterised in that first base portion, the second base portion and The material of back-up ring is steel, and the material on first head and the second head is nitrile rubber.
CN201710523058.8A 2017-06-30 2017-06-30 Nonstandard four-point contact ball Pending CN107152461A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202011625378.2A CN112815011A (en) 2017-06-30 2017-06-30 Bearing sealing structure
CN201710523058.8A CN107152461A (en) 2017-06-30 2017-06-30 Nonstandard four-point contact ball

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710523058.8A CN107152461A (en) 2017-06-30 2017-06-30 Nonstandard four-point contact ball

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN202011625378.2A Division CN112815011A (en) 2017-06-30 2017-06-30 Bearing sealing structure

Publications (1)

Publication Number Publication Date
CN107152461A true CN107152461A (en) 2017-09-12

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CN202011625378.2A Pending CN112815011A (en) 2017-06-30 2017-06-30 Bearing sealing structure
CN201710523058.8A Pending CN107152461A (en) 2017-06-30 2017-06-30 Nonstandard four-point contact ball

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CN202011625378.2A Pending CN112815011A (en) 2017-06-30 2017-06-30 Bearing sealing structure

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CN (2) CN112815011A (en)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN109268386A (en) * 2018-12-04 2019-01-25 中山市盈科轴承制造有限公司 Nonstandard four point contact is usherd to seat roller bearing units
CN109296631A (en) * 2018-12-04 2019-02-01 中山市盈科轴承制造有限公司 Nonstandard four point contacts roller bearing units
CN110774223A (en) * 2019-09-29 2020-02-11 洛阳轴承研究所有限公司 Mounting tool of angular contact ball bearing
CN116292644A (en) * 2023-05-17 2023-06-23 苏州长城精工科技股份有限公司 Radar transmission device

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Publication number Priority date Publication date Assignee Title
JPH11153096A (en) * 1997-11-20 1999-06-08 Koyo Seiko Co Ltd Water pump bearing
CN1484737A (en) * 2001-08-24 2004-03-24 �ձ�������ʽ���� Seal device for water pump rotation supporting device for water pump and water pump
CN101603568A (en) * 2008-11-13 2009-12-16 浙江新昌皮尔轴承有限公司 Two-row ball bearing assembly
CN102333969A (en) * 2009-01-07 2012-01-25 Ntn株式会社 Bearing seal for wheel and bearing device adapted for use in wheel and provided with same
CN101893039A (en) * 2009-01-29 2010-11-24 株式会社捷太格特 Rolling bearing
CN207093594U (en) * 2017-06-30 2018-03-13 中山市盈科轴承制造有限公司 Nonstandard four-point contact ball

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109268386A (en) * 2018-12-04 2019-01-25 中山市盈科轴承制造有限公司 Nonstandard four point contact is usherd to seat roller bearing units
CN109296631A (en) * 2018-12-04 2019-02-01 中山市盈科轴承制造有限公司 Nonstandard four point contacts roller bearing units
CN110774223A (en) * 2019-09-29 2020-02-11 洛阳轴承研究所有限公司 Mounting tool of angular contact ball bearing
CN116292644A (en) * 2023-05-17 2023-06-23 苏州长城精工科技股份有限公司 Radar transmission device
CN116292644B (en) * 2023-05-17 2023-08-25 苏州长城精工科技股份有限公司 Radar transmission device

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Application publication date: 20170912