CN107269689A - A kind of combination bearing suitable for the dish-shaped traction machine of elevator - Google Patents
A kind of combination bearing suitable for the dish-shaped traction machine of elevator Download PDFInfo
- Publication number
- CN107269689A CN107269689A CN201710638311.4A CN201710638311A CN107269689A CN 107269689 A CN107269689 A CN 107269689A CN 201710638311 A CN201710638311 A CN 201710638311A CN 107269689 A CN107269689 A CN 107269689A
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- Prior art keywords
- bearing
- outer ring
- ring
- ball
- face
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- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000004519 grease Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 241001400675 Sympodium Species 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
- F16C19/545—Systems comprising at least one rolling bearing for radial load in combination with at least one rolling bearing for axial load
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to field of bearings, a kind of combination bearing suitable for the dish-shaped traction machine of elevator, including bearing inner race, and the clutch shaft bearing outer ring and second bearing outer ring being positioned on the bearing inner race；Close up setting with axial direction of the second bearing outer ring along bearing inner race in the clutch shaft bearing outer ring；Radial direction cylindrical roller component is installed between clutch shaft bearing outer ring and bearing inner race, ball bearing assembly, the ball bearing assembly 4 points of contacts in the radial and axial directions are installed between second bearing outer ring and bearing inner race.It should be noted that 4 points of contacts refer to that ball bearing assembly is positioned along along bearing inner race axial direction two-end-point, and along along bearing inner race radial direction two-end-point with component contact formation.The combination bearing is predominantly used for the machinery such as elevator traction machine and design, and higher and there is the occasion of larger axial load again due to that can bear radial load and axial load, especially rotating speed simultaneously, simply, bearing capacity is very strong for assembly and disassembly.
Description
Technical field
The present invention relates to field of bearings, more particularly to a kind of combination bearing suitable for the dish-shaped traction machine of elevator.
Background technology
Bearing is that one kind is applied on rotating mechanism, for supporting, and reduces friction and bears the part of load.Elevator is draged
It is a kind of machinery needed using larger radial load and journal for axial load to draw machine, domestic at present mainly to use a set of deep-groove ball
Bearing and a set of NU types cylinder roller bearing meet duty requirements, but axial load is extremely difficult to require, radial load is also only
Requirement can be reached reluctantly, and due to two sets of bearing inner ring interior diameters and rolling（Ditch）There is scattered error and concentricity etc. in road size, make bearing
The noise that gets into smooth is larger, and bearing seal effect is also poor.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of combination bearing, the combination bearing is mainly to use
In elevator traction machine etc. machinery and design, due to can bear simultaneously radial load and axial load, especially rotating speed it is higher and
There is the occasion of larger axial load again, assembly and disassembly are simple, and bearing capacity is very strong.
In order to realize above-mentioned purpose, present invention employs following technical scheme：
A kind of combination bearing suitable for the dish-shaped traction machine of elevator, it is characterised in that：Including bearing inner race, and it is positioned at described
Clutch shaft bearing outer ring and second bearing outer ring on bearing inner race；The clutch shaft bearing outer ring is with second bearing outer ring along along bearing
The axial direction of circle closes up setting；Radial direction cylindrical roller component, the second axle are installed between clutch shaft bearing outer ring and bearing inner race
Ball bearing assembly, 4 points in the radial and axial directions of the ball bearing assembly are installed between bearing outer-ring and bearing inner race
Contact.It should be noted that 4 points of contacts refer to ball bearing assembly along along bearing inner race axial direction two-end-point, Yi Ji
Positioned along along bearing inner race radial direction two-end-point with component contact formation.
Preferably, the outer circumferential wall of the bearing inner race is provided with inner ring raceway face and inner ring ball face；Inner ring
The inner end in ball face protrudes from inner ring raceway face and forms inner ring retaining wall；Radial direction cylindrical roller component is arranged on inner ring raceway face
On, ball bearing assembly is arranged on inner ring ball face.
Preferably, the axial outer end portion in the inner ring raceway face is provided with the conical surface, inner ring raceway face inner end is rolled with inner ring
Pearl face intersection is provided with inner ring oil groove；The axially inside and outside both ends of the clutch shaft bearing outer ring are radially inwardly projecting provided with outer ring gear
Groove bottom between wall, the outer ring retaining wall of both sides constitutes outer roller surface, and end and the outer ring retaining wall junction of outer roller surface are constituted
The first outer ring seal groove is additionally provided with outer ring oil groove, axially external outer ring retaining wall；The outside of the radial direction cylindrical roller component
Positioning is positioned on outer roller surface, and axially through outer ring retaining wall and outer end retaining wall.
Preferably, being provided with the first sealing ring between the clutch shaft bearing outer ring and the axial outer end portion of bearing inner race；The
One sealing ring includes the first steel skeleton, and is coated on the first seal on the outside of the first steel skeleton；First seal
Its radially outer end is caught in the first outer ring seal groove of clutch shaft bearing outer ring, the radial inner end and inner ring raceway of the first seal
The conical surface in face offsets；Include the first radial seal lip and the first axial sealing lip on the radial inner end of first seal
Portion, the first seal of the first radial seal lip radial outside is provided with the first elastic groove.
Preferably, the radial direction cylindrical roller component includes radial direction retainer, and on radial direction retainer
Radial roller group；The radial direction retainer includes ring body, and ring body side is provided with multiple pocket holes, two neighboring pocket along its circumferential rule
Tie-beam is provided between hole, trapezoidal groove is constituted between tie-beam and ring body lateral wall, pocket hole is provided with tie-beam end position
Oil storage tank.
Preferably, the inner ring ball face is provided with inner ring ball arc groove；The footpath of the second bearing outer ring is inside
Side is provided with outer ring ball face, and outer ring ball face is provided with outer ring ball arc groove；The ball bearing assembly is installed outside
Enclose in ball arc groove.
Preferably, the ball bearing assembly includes axial-radial retainer, and the axial-radial retainer installed
Interior ball set.
Preferably, the inner ring ball arc groove and outer ring ball arc groove include left side groove face and right side groove face,
Bottom of trench oil duct is constituted between left side groove face and right side groove face；The angle α of the left side groove face and right side groove face and center line for 35 ~
40°。
Preferably, the second sealing ring is provided between the axial outer end portion in the outer ring ball face and inner ring ball face, the
Two sealing rings include the second steel skeleton, and are coated on the second seal on the outside of the second steel skeleton；Second seal
Include the second radial seal lip and two the second axial seal lips on radial inner end, the second radial seal lip is radially outer
Second seal of side, which is provided between the second elastic groove, two the second axial seal lips, constitutes the 3rd elastic groove.
Preferably, the axial outer end portion in the outer ring ball face is provided with the second outer ring seal groove, inner ring ball face
Axial outer end portion is provided with inner ring seal groove；Its radially outer end of second sealing ring is positioned in the second outer ring seal groove,
The radial inner end of second sealing ring is positioned in inner ring seal groove.
The present invention uses above-mentioned technical proposal, and the technical scheme is related to a kind of built-up shaft suitable for the dish-shaped traction machine of elevator
Hold, the radial direction cylindrical roller component and ball bearing assembly in the combination bearing share same bearing inner race, the rolling of radial direction cylinder
Sub-component is used for the radial direction bearing capacity for ensureing combination bearing, and ball bearing assembly is used for the axial bearing capacity for ensureing combination bearing,
And radial direction bearing capacity is lifted simultaneously.And a bearing inner race is shared, make its easy for installation, it is ensured that the scattered error of bearing bore diameter and interior
Circle rolling（Ditch）The concentricity in road, reduces bear vibration noise and improves bearing service life.It may be summarized to be, the built-up shaft
Bearing structure is compact, improves axiality, operates more stable, reduction noise.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the structural representation of clutch shaft bearing outer ring.
Fig. 3 is the structural representation of bearing inner race.
Fig. 4 is the structural representation of radial direction retainer.
Fig. 5 is the structural representation of radial direction retainer.
Fig. 6 is the structural representation of the first sealing ring.
Fig. 7 is the structural representation of second bearing outer ring.
Fig. 8 is the structural representation of the second sealing ring.
Embodiment
Below in conjunction with the accompanying drawings, the preferred embodiments of the invention are described in further detail.
A kind of combination bearing suitable for the dish-shaped traction machine of elevator as shown in Fig. 1 ~ 8, including bearing inner race 1, Yi Jiding
Clutch shaft bearing outer ring 2 and second bearing outer ring 3 of the position on the bearing inner race 1.The clutch shaft bearing outer ring 2 and second bearing
Axial direction of the outer ring 3 along bearing inner race 1 closes up setting.The outer circumferential wall of the bearing inner race 1 is provided with inner ring raceway
Face 11 and inner ring ball face 12, the inner end in inner ring ball face 12 protrude from inner ring raceway face 11 and form inner ring retaining wall 13.It is described
Radial direction cylindrical roller component is installed, radial direction cylindrical roller component is arranged on inner ring between clutch shaft bearing outer ring 2 and bearing inner race 1
On roller surface 11.Ball bearing assembly, ball bearing assembly peace are installed between the second bearing outer ring 3 and bearing inner race 1
On inner ring ball face 12, ball bearing assembly 4 points of contacts in the radial and axial directions.It should be noted that 4 points connect
Touch and refer to ball bearing assembly along along the axial direction two-end-point of bearing inner race 1, and along the radial direction two ends of bearing inner race 1
Positioned on point with component contact formation.
The technical scheme is related to the radial direction circle in a kind of combination bearing suitable for the dish-shaped traction machine of elevator, the combination bearing
Post roller assembly and ball bearing assembly share same bearing inner race 1, and radial direction cylindrical roller component is used to ensure combination bearing
Radial direction bearing capacity, ball bearing assembly is used to ensure the axial bearing capacity of combination bearing, and lifts radial direction bearing capacity simultaneously.And
A bearing inner race 1 is shared, makes its easy for installation, it is ensured that scattered error and the inner ring rolling of bearing bore diameter（Ditch）The concentricity in road, drop
Low bear vibration noise and improve bearing service life.It may be summarized to be, the combined bearing structure is compact, improve coaxial
Degree, operates more stable, reduction noise.
The program is specific as follows：
In radial direction cylindrical roller component location structure；The axial outer end portion in the inner ring raceway face 11 is provided with the conical surface 14, the conical surface
14 cone angle is 15-17 °, and the inner end of inner ring raceway face 11 is provided with inner ring oil groove 15 with the intersection of inner ring ball face 12.Described
The axially inside and outside both ends of one bearing outer ring 2 are radially inwardly projecting to be provided between outer ring retaining wall 21, the outer ring retaining wall 21 of both sides
Groove bottom constitutes outer roller surface 22, and end and the junction of outer ring retaining wall 21 of outer roller surface 22 constitute outer ring oil groove 23, and axle is outside
The first outer ring seal groove 24 is additionally provided with the outer ring retaining wall 21 of side.The outside of the radial direction cylindrical roller component is positioned in outer raceway
On face 22, and positioned axially through outer ring retaining wall 21 and outer end retaining wall.The clutch shaft bearing outer ring 2 and the axial direction of bearing inner race 1
The first sealing ring 4 is provided between outer end.First sealing ring 4 includes the first steel skeleton 41, and is coated on the first steel skeleton 41
First seal 42 in outside.The first outer ring that its radially outer end of first seal 42 is caught in clutch shaft bearing outer ring 2 is close
In sealing groove 24, the radial inner end of the first seal 42 offsets with the conical surface 14 in inner ring raceway face 11.First seal 42
Radial inner end on include the first radial seal lip 43 and the first axial sealed lip 44, the footpath of the first radial seal lip 43
The first seal 42 laterally is provided with the first elastic groove 45.
The radial direction cylindrical roller component includes radial direction retainer 51, and the radial direction rolling on radial direction retainer 51
Subgroup 52.The radial direction retainer 51 includes ring body 53, and the side of ring body 53 is provided with multiple pocket holes 54, adjacent two along its circumferential rule
Tie-beam 55 is provided between individual pocket hole 54, trapezoidal groove 56 is constituted between tie-beam 55 and the lateral wall of ring body 53, pocket hole 54 is even
The end position of beam 55 is connect provided with oil storage tank 58.The radial direction retainer 51 of the radial direction cylinder roller bearing is overall using brass material
Turning adds milling processing and forming.
In ball bearing assembly location structure；The inner ring ball face 12 is provided with inner ring ball arc groove.Described
The radially inner side face of two bearing outer rings 3 is provided with outer ring ball face 31, and outer ring ball face 31 is provided with outer ring ball arc groove.Institute
Ball bearing assembly is stated in the ball arc groove of outer ring.The inner ring ball arc groove and outer ring ball arc groove include
Left side groove face 31a and right side groove face 31b, constitutes bottom of trench oil duct 32 between left side groove face 31a and right side groove face 31b.The left side
The angle α of groove face 31a and right side groove face 31b and center line is 35 ~ 40 °.The ball bearing assembly is kept including axial-radial
Ball set 62 in frame 61, and the axial-radial retainer 61 installed.
The second sealing ring 7, the second sealing ring 7 are provided between the axial outer end portion in the outer ring ball face 31 and inner ring ball face 12
Including the second steel skeleton 71, and it is coated on second seal 72 in the outside of the second steel skeleton 71.Second seal 72
Include the second radial seal lip 73 and two the second axial seal lips 74, the second radial seal lip 73 on radial inner end
Second seal 72 of radial outside, which is provided between the second elastic groove 75, two the second axial seal lips 74, constitutes the 3rd bullet
Property groove 76.The axial outer end portion in the outer ring ball face 31 is provided with the second outer ring seal groove 34, the axial direction in inner ring ball face 12
Outer end is provided with inner ring seal groove 17.Its radially outer end of second sealing ring 7 is positioned in the second outer ring seal groove 34,
The radial inner end of second sealing ring 7 is positioned in inner ring seal groove 17.
The combination bearing assembling process on the dish-shaped traction machine of elevator that the program is related to is as follows：The first step, installs radially circle
Post roller bearing；First clutch shaft bearing outer ring 2 is kept flat on the table, then radial direction retainer 51 it is flat be put into first axle
In bearing outer-ring 2, then radial roller group 52 many be fitted into the pocket hole 54 of radial direction retainer 51.Second step, installs ball
Bearing assembly；It is same that first second bearing outer ring 3 is kept flat on the table, bearing inner race 1 then there is into seal groove side down
Put down and be put into second bearing outer ring 3, and be in contact in the inwall of side bearing inner race 1 with the outer wall of second bearing outer ring 3,
Few one steel ball of wall finished product drawing requirement is subsequently placed into, then loads last steel ball with folder ball machine, is then loaded axially
Radial direction retainer 61, then the riveted axial-radial retainer 61 on punch press.3rd step, overall package；By the footpath above installed
Component, which has seal groove side to be inserted in inner ring upward, to outside cylinder roller bearing the guiding conical surface 14 side, then cleans the axle installed
Hold, then bearing both sides inject the lubricating grease of product requirement with grease filling machine, then in radial direction cylinder roller bearing side press-in the
One sealing ring 4；The second sealing ring 7 finally is pressed into ball bearing assembly side, so far the dish-shaped traction unit of a set of novel elevator
Sympodium takes up to match somebody with somebody and finished.
Claims (10)
1. a kind of combination bearing suitable for the dish-shaped traction machine of elevator, it is characterised in that：Including bearing inner race, and it is positioned at institute
State the clutch shaft bearing outer ring and second bearing outer ring on bearing inner race；The clutch shaft bearing outer ring and second bearing outer ring are along bearing
The axial direction of inner ring closes up setting；Radial direction cylindrical roller component, second are installed between clutch shaft bearing outer ring and bearing inner race
Ball bearing assembly is installed, the ball bearing assembly in the radial and axial directions four between bearing outer ring and bearing inner race
Point contact.
2. a kind of combination bearing suitable for the dish-shaped traction machine of elevator according to claim 1, it is characterised in that：The axle
The outer circumferential wall for holding inner ring is provided with inner ring raceway face and inner ring ball face；The inner end in inner ring ball face protrudes from inner ring
Roller surface formation inner ring retaining wall；Radial direction cylindrical roller component is arranged on inner ring raceway face, and ball bearing assembly is arranged on inner ring
On ball face.
3. a kind of combination bearing suitable for the dish-shaped traction machine of elevator according to claim 2, it is characterised in that：In described
The axial outer end portion for enclosing roller surface is provided with the conical surface, and inner ring raceway face inner end is provided with inner ring oil groove with inner ring ball face intersection；
The axially inside and outside both ends of the clutch shaft bearing outer ring are radially inwardly projecting to be provided between outer ring retaining wall, the outer ring retaining wall of both sides
Groove bottom constitutes outer roller surface, and end and the outer ring retaining wall junction of outer roller surface constitute outer ring oil groove, axially external outer ring
The first outer ring seal groove is additionally provided with retaining wall；The outside of the radial direction cylindrical roller component is positioned on outer roller surface, and axially
Positioned by outer ring retaining wall and outer end retaining wall.
4. a kind of combination bearing suitable for the dish-shaped traction machine of elevator according to claim 3, it is characterised in that：Described
The first sealing ring is provided between one bearing outer ring and the axial outer end portion of bearing inner race；First sealing ring includes the first steel skeleton,
And it is coated on the first seal on the outside of the first steel skeleton；Its radially outer end of first seal is caught in outside clutch shaft bearing
In first outer ring seal groove of circle, the radial inner end and the conical surface in inner ring raceway face of the first seal offset；Described first is close
Sealing on the radial inner end of body includes the first radial seal lip and the first axial sealed lip, and the first radial seal lip is radially
First seal in outside is provided with the first elastic groove.
5. a kind of combination bearing suitable for the dish-shaped traction machine of elevator according to any one in claim 1 ~ 3, it is special
Levy and be：The radial direction cylindrical roller component includes radial direction retainer, and the radial roller group on radial direction retainer；
The radial direction retainer includes ring body, and ring body side is provided between multiple pocket holes, two neighboring pocket hole along its circumferential rule and is provided with
Tie-beam, constitutes trapezoidal groove between tie-beam and ring body lateral wall, pocket hole is provided with oil storage tank in tie-beam end position.
6. a kind of combination bearing suitable for the dish-shaped traction machine of elevator according to claim 2, it is characterised in that：In described
Enclose ball face and be provided with inner ring ball arc groove；The radially inner side face of the second bearing outer ring is provided with outer ring ball face, outside
Enclose ball face and be provided with outer ring ball arc groove；The ball bearing assembly is arranged in the ball arc groove of outer ring.
7. a kind of combination bearing suitable for the dish-shaped traction machine of elevator according to claim 6, it is characterised in that：The rolling
Pearl bearing assembly includes the ball set in axial-radial retainer, and the axial-radial retainer installed.
8. a kind of combination bearing suitable for the dish-shaped traction machine of elevator according to claim 6, it is characterised in that：In described
Enclosing ball arc groove and outer ring ball arc groove includes left side groove face and right side groove face, structure between left side groove face and right side groove face
Into bottom of trench oil duct；The angle α of the left side groove face and right side groove face and center line is 35 ~ 40 °.
9. a kind of combination bearing suitable for the dish-shaped traction machine of elevator according to claim 6, it is characterised in that：It is described outer
Enclose and the second sealing ring be provided between ball face and the axial outer end portion in inner ring ball face, the second sealing ring includes the second steel skeleton,
And it is coated on the second seal on the outside of the second steel skeleton；Include second on the radial inner end of second seal radially
Sealed lip and two the second axial seal lips, the second seal of the second radial seal lip radial outside are provided with second
The 3rd elastic groove is constituted between elastic groove, two the second axial seal lips.
10. a kind of combination bearing suitable for the dish-shaped traction machine of elevator according to claim 9, it is characterised in that：It is described
The axial outer end portion in outer ring ball face is provided with the second outer ring seal groove, and the axial outer end portion in inner ring ball face is close provided with inner ring
Sealing groove；Its radially outer end of second sealing ring is positioned in the second outer ring seal groove, the radial inner end of the second sealing ring
It is positioned in inner ring seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710638311.4A CN107269689A (en) | 2017-07-31 | 2017-07-31 | A kind of combination bearing suitable for the dish-shaped traction machine of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710638311.4A CN107269689A (en) | 2017-07-31 | 2017-07-31 | A kind of combination bearing suitable for the dish-shaped traction machine of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107269689A true CN107269689A (en) | 2017-10-20 |
Family
ID=60076061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710638311.4A Pending CN107269689A (en) | 2017-07-31 | 2017-07-31 | A kind of combination bearing suitable for the dish-shaped traction machine of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107269689A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514427A (en) * | 2017-10-24 | 2017-12-26 | 无锡民联汽车零部件有限公司 | Double ditch mixing roller type bearings |
| CN109058289A (en) * | 2018-09-20 | 2018-12-21 | 江苏富天江电子电器有限公司 | A kind of bearing of the motor with anti-electrocorrosion structure |
| CN110657158A (en) * | 2019-10-22 | 2020-01-07 | 无锡市第二轴承有限公司 | Four-point contact type high-speed lead screw bearing |
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| CN205559542U (en) * | 2016-04-21 | 2016-09-07 | 浙江天马轴承有限公司 | Footpath axial composite cylinder roller bearing |
| CN105987083A (en) * | 2015-02-12 | 2016-10-05 | 舍弗勒技术股份两合公司 | Bearing and sealing method thereof |
| CN206234274U (en) * | 2016-12-09 | 2017-06-09 | 绍兴上虞万里汽车轴承有限公司 | Clutch bearing with circular arc friction plate |
| CN207064468U (en) * | 2017-07-31 | 2018-03-02 | 浙江天马轴承有限公司 | A kind of combination bearing suitable for elevator dish traction machine |
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2017
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|---|---|---|---|---|
| JPH112238A (en) * | 1997-06-12 | 1999-01-06 | Nippon Seiko Kk | Bearing for electromagnetic clutch pulley |
| JP2002339960A (en) * | 2001-05-16 | 2002-11-27 | Nsk Ltd | Rolling bearing device |
| DE102008025352A1 (en) * | 2008-05-27 | 2009-12-03 | Schaeffler Kg | Bearing set for an axial and radial shaft to be guided |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107514427A (en) * | 2017-10-24 | 2017-12-26 | 无锡民联汽车零部件有限公司 | Double ditch mixing roller type bearings |
| CN109058289A (en) * | 2018-09-20 | 2018-12-21 | 江苏富天江电子电器有限公司 | A kind of bearing of the motor with anti-electrocorrosion structure |
| WO2020056824A1 (en) * | 2018-09-20 | 2020-03-26 | 江苏富天江电子电器有限公司 | Bearing having electrical-corrosion prevention structure for motor |
| CN110657158A (en) * | 2019-10-22 | 2020-01-07 | 无锡市第二轴承有限公司 | Four-point contact type high-speed lead screw bearing |
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Application publication date: 20171020 |