CN102494021A - Oil lubricating roll-slide bearing with elastic roller - Google Patents
Oil lubricating roll-slide bearing with elastic roller Download PDFInfo
- Publication number
- CN102494021A CN102494021A CN2011104253320A CN201110425332A CN102494021A CN 102494021 A CN102494021 A CN 102494021A CN 2011104253320 A CN2011104253320 A CN 2011104253320A CN 201110425332 A CN201110425332 A CN 201110425332A CN 102494021 A CN102494021 A CN 102494021A
- Authority
- CN
- China
- Prior art keywords
- slide block
- outer ring
- elastic cylinder
- roller
- cylinder roller
- 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.)
- Granted
Links
Images
Abstract
The invention provides an oil lubricating roll-slide bearing with an elastic roller. The roll-slide bearing consists of an outer ring (1), elastic cylindrical rollers (2), slide blocks (3) and an inner ring (4), wherein the elastic cylindrical roller (2) and the slide block (3) are positioned in a chute between the outer ring (1) and the inner ring (4); the number of the elastic cylindrical rollers (2) equals to that of the slide blocks (3), and the elastic cylindrical rollers (2) and the slide blocks (3) are distributed at intervals; the diameter of the elastic cylindrical roller (2) is more than the thickness of the slide block (3) in the radial direction of the bearing, and the axial length of the elastic cylindrical roller (2) is less than the length of the slide block (3) in the axial direction of the bearing; the elastic cylindrical roller has a certain pre-compression amount in the diameter direction, trace clearances are reserved between the slide blocks (3) and the inner ring (1) and between the slide blocks (3) and the outer ring (4), and the elastic cylindrical rollers (2) are kept to be contacted with the slide blocks (3). The oil lubricating roll-slide bearing is used for reducing the applied stress on the inner and outer rings and the elastic cylindrical roller, has the characteristics of storing and releasing energy and maintaining rolling, and has small abrasion and long service life compared with those of a roll-slide bearing with a corresponding size.
Description
Technical field
The invention belongs to mechanical engineering field.
Background technique
The present invention is applicable to rotating machinery, plays back shaft, is specially adapted to support the axle of rotating machinery under the heavily loaded shock environment.At present, support rotating machinery under the heavily loaded shock environment axle mainly be rolling bearing and hydrodynamic sliding bearing, the advantage of rolling bearing is that the starting friction resistance is little, friction factor is low, easy to maintenance, disadvantage is that the load-carrying ability that withstands shocks is poor; The advantage of hydrodynamic sliding bearing is that the load-carrying ability that withstands shocks is strong, simple in structure, and surface friction drag was big when disadvantage was starting and low speed.The roll-slide combined bearing that the suitable bearing that supports heavy duty is Mr.'s Tian Hongping invention, but this roll-slide combined bearing has two big shortcomings: the one, roller is a rigid body, is difficult to bear heavy load, especially heavily loaded impulsive load with the common coordination of slide block; The 2nd, what it lubricated employing is grease lubrication, is difficult between slide block and lasso, form thicker oil film, is not suitable for bearing heavily loaded impulsive load.Set forth in its paper " roll-slide combined bearing " as Mr. Tian Hongping: the performance of roll-slide combined bearing is difficult to be applicable to and bears heavily loaded impulsive load between the performance of rolling bearing and hydrodynamic sliding bearing.For this reason; The present invention has the spiral roller and the oil lubrication of certain radial elastic through employing; Solve the common problem of coordinating to bear impulsive load of roller and slide block, make it to be applicable to and bear heavily loaded impulsive load, and have the performance that is higher than rolling bearing and hydrodynamic sliding bearing.
Summary of the invention
The objective of the invention is to propose a kind of roller rolls and have the skid bearing that elasticity and slide block slide and have fluid hydrodynamic lubrication characteristic, to solve the excellent support problem of axle journal under the heavily loaded circulation impact.
The present invention realizes through following technological scheme.
Skid bearing of the present invention is made up of an inner ring, a plurality of elastic cylinder roller, the slide block that equates with elastic cylinder roller quantity and an outer ring.
Specifically, skid bearing of the present invention is made up of outer ring (1), elastic cylinder roller (2), slide block (3) and inner ring (4).Elastic cylinder roller (2) and slide block (3) are positioned at the chute between outer ring (1) and the inner ring (4); The number of elastic cylinder roller (2) and slide block (3) equates, is spaced from each other distribution; Elastic cylinder roller (2) diameter is greater than the thickness of slide block (3) in the bearing radial direction, and elastic cylinder roller (2) axial length is less than the length of slide block (3) at the bearing axial direction; The elastic cylinder roller has certain pre compressed magnitude in diametric(al), has slight clearance between slide block (3) and inner ring (1) and outer ring (4), and elastic cylinder roller (2) and slide block (3) keep in touch.
Have two circular grooves of length on the circumference at described outer ring external cylindrical surface middle part, separate between the length circular groove, long circular groove (5) communicates to oilhole (8) with a plurality of paths, a plurality of paths to oilhole (8) again with the outer ring in roller surface communicate; Short circular groove (6) communicates with big radial direction oil hole (7), big radial direction oil hole (7) again with the outer ring in roller surface communicate, radial hole (7) is positioned at the lower curtate of skid bearing and can guarantees that fluid in time flows out when the skid Bearing Installation greatly.Each oilhole place of roller surface has an axial groove (9) in the outer ring.The two ends, outer ring are fixing rib.
The face that described slide block contacts with Internal and external cycle is an arc surface, and the arc surface radius that slide block contacts with inner ring is greater than the radius of inner ring cylindrical roller surface, and the arc surface radius that slide block contacts with the outer ring is less than the radius of circle roller surface in the outer ring; The two sides that slide block contacts with the elastic cylinder roller is a parallel plane; The two sides that slide block contacts with rib is a parallel plane; The middle part of slide block and inner ring surface of contact have one be shaped as semicircle inner groove (11), the middle part of slide block and outer ring surface of contact have one be shaped as semicircle outer deep gouge (12), inner groove (11) links to each other through oilhole (10) with outer deep gouge (12).
Described elastic cylinder roller is the spiral elasticity hollow roller, and elastic cylinder roller end radii relatively middle part is smaller and be circular, spiral chute no show end, and the spiral-shaped material cross-section of formation elastic cylinder roller is a rectangle.
Elastic cylinder roller of the present invention has radial elastic; Keep certain radial precompressed amount during installation; Guarantee that the elastic cylinder roller well contacts in rotation process with Internal and external cycle all the time, even the skid bearing is under heavily loaded circulation impact like this, relative radial displacement takes place in Internal and external cycle; The elastic cylinder radius of roller can change thereupon, and the elastic cylinder roller still can obtain the enough big friction torque that is produced by moving-coil and keep good rolling.Through slide block and Internal and external cycle micro-gap is arranged; The slide block subsequent corrosion that contacts with the outer ring is less than the outer ring radius; The slide block subsequent corrosion that contacts with inner ring under the frictional force action of elastic cylinder roller thrust, frictional force and lasso, forms wedge gap between slide block and the Internal and external cycle greater than the inner ring radius.Skid bearing of the present invention adopts circulating oil lubrication; The fluid that the outside infeeds is uniformly distributed in raceway in the outer ring; During motion, the fluid that slide block, elastic cylinder roller, outer ring raceway and outer ring rib surround constantly gets into the wedge gap between slide block and the outer ring under the motion of the relative outer ring of slide block; Form wedge-shaped oil film, separate slide block and outer ring; In addition, the fluid that slide block, elastic cylinder roller, outer ring raceway and outer ring rib surround gets in the wedge gap that forms between slide block and the inner ring under slide block center oil hole slot and the effect of elastic cylinder roller, forms wedge-shaped oil film, separates slide block and inner ring; Under the lubricant oil effect, the motion of slide block makes fluid between Internal and external cycle, form the hydrodynamic lubrication effect.When the skid bearing bears heavily loaded circulation impact; Because the elastic cylinder roller has the oil lamella that has had elastic reaction between elastic rolling and slide block and the Internal and external cycle; Therefore, it is little to rub during the skid bearing movable, and slide block is big through fluid and Internal and external cycle area of contact; Working stress is little, can support the axle journal under the heavily loaded circulation impact preferably.Referring to Figure 10.
The static structure of skid bearing according to the invention is referring to accompanying drawing 1.
The skid bearing is made up of outer ring (1), elastic cylinder roller (2), slide block (3) and inner ring (4), and elastic cylinder roller (2) and slide block (3) are positioned at the chute between outer ring (1) and the inner ring (4); The number of elastic cylinder roller (2) and slide block (3) equates, is spaced from each other distribution; Elastic cylinder roller (2) diameter is greater than the thickness of slide block (3) in the bearing radial direction, and elastic cylinder roller (2) axial length is less than the length of slide block (3) at the bearing axial direction; The elastic cylinder roller has certain pre compressed magnitude in diametric(al), has slight clearance between slide block (3) and inner ring (1) and outer ring (4), and elastic cylinder roller (2) and slide block (3) keep in touch.
The dynamic structure of skid bearing according to the invention is referring to accompanying drawing 10.
When move in the relative outer ring (1) of inner ring (4); Though the gap of inner ring and outer ring constantly changes; But elastic cylinder roller (2) is radially because of having certain pre compressed magnitude and having certain elasticity; Can produce positive pressure between each elastic cylinder roller (2) and the lasso, the friction torque that on each elastic cylinder roller, produces thus drives elastic cylinder roller (2) and rolls along the lasso raceway; To front slide, and self forms certain wedge gap with fine rotation to slide block between slide block and the Internal and external cycle under the frictional force action of elastic cylinder roller under the frictional force action of the thrust of elastic cylinder roller and inner ring; Lubricant oil on the skid bearing ring raceway forms one deck oil film because of slip and the rotation entering slide block of inner ring and the wedge gap of lasso of slide block between slide block and lasso.Because of one deck oil film is arranged, the friction between slide block and the lasso is liquid friction between lasso and the slide block, and frictional force is very little, and slide block can easily be made circular movement along the lasso raceway under the frictional force action of the thrust of elastic cylinder roller and inner ring.
The flowing state of skid bearing lubrication fluid according to the invention is referring to accompanying drawing 10.
The skid bearing is contained in the equipment, and the outer ring is fixedly connected with equipment, and length circular groove and equipment internal face in the outer ring constitute oil input channel and back oil road respectively; Oil input channel and back oil road communicate with the oil supply pipeline and the oil returning tube of external hydraulic system respectively, and each path of oil input channel infeeds lubricant oil to oilhole to outside oil supply system from top, get into outer ring raceway; Bearing is lubricated; Get back to the bottom then, a big radial direction oil hole flows back to back oil road from the bottom, and the oil returning tube through external hydraulic system flows out again.During motion, the fluid that slide block, elastic cylinder roller, outer ring raceway and rib surround constantly gets into the wedge gap between slide block and the outer ring under the motion effect of slide block, forms wedge shape pressure oil film, separates slide block and outer ring; Simultaneously; The fluid that slide block, elastic cylinder roller, outer ring raceway and rib surround is under slide block center oil hole slot and the effect of elastic cylinder roller; Get in the wedge gap that forms between slide block and the inner ring; Form wedge shape pressure oil film under the frictional force action when inner ring rotates, separate slide block and inner ring.Fluid on the lasso raceway gets under the rotary action of elastic cylinder roller in the gap that elastic cylinder roller and slide block form and forms the pressure oil film, separates elastic cylinder roller and slide block.
The advantage of skid bearing of the present invention and effect are mainly reflected in following several respects.
When 1, the skid bearing bears heavy duty; The elastic cylinder roller can be discharged to most of weight of load on the slide block; Reduced the working stress on Internal and external cycle and the elastic cylinder roller, thereby skid bearing of the present invention can bear bigger load than the rolling bearing of corresponding size.
2, because the elastic cylinder roller is flexible, has storage, release energy and keeps the characteristic of rolling; One deck is arranged than heavy oil film between slide block and the bearing enclose, thereby skid bearing of the present invention helps the load that withstands shocks.
3, slide block is big through the area of contact of oil film and lasso, pressure is little, and the elastic cylinder roller has elasticity, thereby skid bearing of the present invention is littler than the rolling bearing wearing and tearing of corresponding size, the life-span is long.
Description of drawings
Accompanying drawing 1 is the static structure schematic representation of skid bearing according to the invention.Wherein 1 is that outer ring, 2 is that elastic cylinder roller, 3 is that slide block, 4 is inner ring.
Accompanying drawing 2 is the plan view of outer ring shown in the accompanying drawing 1 of the present invention.
5 for long circular groove in accompanying drawing 2, the accompanying drawing 3, and 6 for lacking circular groove, and 7 is big radial direction oil hole, 8 be path to oilhole, 9 is axial groove.
Accompanying drawing 4 is the plan view of slide block 3 shown in the accompanying drawing 1 of the present invention.
Accompanying drawing 5 is the left view of slide block 3 shown in the accompanying drawing 1 of the present invention.
10 is oilhole in accompanying drawing 4, the accompanying drawing 5, and 11 is inner groove, and 12 is outer deep gouge.
Accompanying drawing 6 is the stereogram of elastic cylinder roller 2 shown in the accompanying drawing 1 of the present invention.For the ease of observing the structure of explanation elastic cylinder roller, figure imagination middle part is broken off.
Accompanying drawing 7 is with the fixedly plan view of the part of rib for inner ring shown in the accompanying drawing 1 of the present invention 4.
Accompanying drawing 8 is with the fixedly left view of the part of rib for inner ring shown in the accompanying drawing 1 of the present invention 4.
Accompanying drawing 9 is the stereogram of inner ring 4 movable rib parts shown in the accompanying drawing 1 of the present invention.
Accompanying drawing 7 is contained on the axle with two parts shown in the accompanying drawing 9 together, compresses through the shaft shoulder, constitutes the inner ring of skid bearing.
The dynamic structure schematic representation that accompanying drawing 10 is laterally cut open for skid bearing according to the invention middle part.1 is that outer ring, 2 is that elastic cylinder roller, 3 is that slide block, 4 is that inner ring, 13 is lubricating oil, and arrow is the direction of fluid inflow and outflow.Reaching on the roller surface in the wedge gap between slide block and the lasso is lubricating oil.
Embodiment
The present invention will be described further through following examples.
Present embodiment is made up of outer ring (1), elastic cylinder roller (2), slide block (3) and inner ring (4).Elastic cylinder roller (2) and slide block (3) are positioned at the chute between outer ring (1) and the inner ring (4); The number of elastic cylinder roller and slide block equates, is spaced from each other distribution; The elastic cylinder roller diameter is greater than the thickness of slide block in the bearing radial direction, and elastic cylinder roller axial length is less than the length of slide block at the bearing axial direction; The elastic cylinder roller has certain pre compressed magnitude in diametric(al), has slight clearance between slide block and inner ring and the outer ring, keeps in touch between elastic cylinder roller and the slide block.The skid bearing adopts circulating oil lubrication, and the fluid that the outside infeeds is uniformly distributed in raceway in the outer ring.When the relative outer ring (1) of inner ring (4) stand under load moves; The elastic cylinder roller is radially because of having certain pre compressed magnitude and having certain elasticity; Have positive pressure between each elastic cylinder roller and the lasso, the friction torque that on each elastic cylinder roller, produces thus drives the elastic cylinder roller and rolls along the lasso raceway; To front slide, and self forms certain wedge gap with fine rotation to slide block between slide block and the Internal and external cycle under the frictional force action of elastic cylinder roller under the frictional force action of the thrust of elastic cylinder roller and inner ring; The fluid that slide block, elastic cylinder roller, outer ring raceway and rib surround constantly gets into the wedge gap between slide block and the outer ring under the motion of the relative outer ring of slide block, form wedge shape pressure oil film, separates slide block and outer ring; Simultaneously; The fluid in slide block, elastic cylinder roller, outer ring raceway and rib besieged city is through slide block center oil hole slot and elastic cylinder roller spiral chute; Get in the wedge gap that forms between slide block and the inner ring, under the frictional force action that inner ring rotates, form wedge shape pressure oil film, separate slide block and inner ring.Fluid on the lasso raceway gets under the rotation of elastic cylinder roller and forms the pressure oil film in the gap of elastic cylinder roller and slide block, separates elastic cylinder roller and slide block.Because of one deck oil film is arranged, the friction between them is liquid friction between slide block and lasso and the elastic cylinder roller, and frictional force is very little, and slide block can easily move along the lasso raceway under the frictional force action of the thrust of elastic cylinder roller and inner ring.Because the oil lamella of elastic reaction has been arranged between the elastic rolling of elastic cylinder roller and slide block and the Internal and external cycle, and it is little to rub, slide block is big through the area of contact of fluid and Internal and external cycle, and working stress is little, so can support the axle journal under the heavily loaded circulation impact preferably.
Claims (1)
1. a roller rubber-like oil lubrication skid bearing is characterized in that being made up of outer ring (1), elastic cylinder roller (2), slide block (3) and inner ring (4); Elastic cylinder roller (2) and slide block (3) are positioned at the chute between outer ring (1) and the inner ring (4); The number of elastic cylinder roller (2) and slide block (3) equates, is spaced from each other distribution; Elastic cylinder roller (2) diameter is greater than the thickness of slide block (3) in the bearing radial direction, and elastic cylinder roller (2) axial length is less than the length of slide block (3) at the bearing axial direction; The elastic cylinder roller has certain pre compressed magnitude in diametric(al), has slight clearance between slide block (3) and inner ring (1) and outer ring (4), and elastic cylinder roller (2) and slide block (3) keep in touch;
Have two circular grooves of length on the circumference at described outer ring external cylindrical surface middle part, separate between the length circular groove, long circular groove (5) communicates to oilhole (8) with a plurality of paths, a plurality of paths to oilhole (8) again with the outer ring in roller surface communicate; Short circular groove (6) communicates with big radial direction oil hole (7), big radial direction oil hole (7) again with the outer ring in roller surface communicate, radial hole (7) is positioned at the lower curtate of skid bearing and can guarantees that fluid in time flows out when the skid Bearing Installation greatly; Each oilhole place of roller surface has an axial groove (9) in the outer ring; The two ends, outer ring are fixing rib;
The face that described slide block contacts with Internal and external cycle is an arc surface, and the arc surface radius that slide block contacts with inner ring is greater than the radius of inner ring cylindrical roller surface, and the arc surface radius that slide block contacts with the outer ring is less than the radius of circle roller surface in the outer ring; The two sides that slide block contacts with the elastic cylinder roller is a parallel plane; The two sides that slide block contacts with rib is a parallel plane; The middle part of slide block and inner ring surface of contact have one be shaped as semicircle inner groove (11), the middle part of slide block and outer ring surface of contact have one be shaped as semicircle outer deep gouge (12), inner groove (11) links to each other through oilhole (10) with outer deep gouge (12);
Described elastic cylinder roller is the spiral elasticity hollow roller, and elastic cylinder roller end radii relatively middle part is smaller and be circular, spiral chute no show end, and the spiral-shaped material cross-section of formation elastic cylinder roller is a rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110425332 CN102494021B (en) | 2011-12-19 | 2011-12-19 | Oil lubricating roll-slide bearing with elastic roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110425332 CN102494021B (en) | 2011-12-19 | 2011-12-19 | Oil lubricating roll-slide bearing with elastic roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102494021A true CN102494021A (en) | 2012-06-13 |
| CN102494021B CN102494021B (en) | 2013-10-16 |
Family
ID=46185869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110425332 Expired - Fee Related CN102494021B (en) | 2011-12-19 | 2011-12-19 | Oil lubricating roll-slide bearing with elastic roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102494021B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788083A (en) * | 2012-06-27 | 2012-11-21 | 北京航空航天大学 | Lubricating oil supplying bearing system driven by machinery-fluid coupling |
| CN102797753A (en) * | 2012-08-28 | 2012-11-28 | 浙江大学 | Pitch-varying elastic conical roller bearing |
| CN104863959A (en) * | 2014-02-24 | 2015-08-26 | 浙江万里学院 | Novel rolling sliding bearing and friction-lubrication mechanism structure |
| CN107588096A (en) * | 2016-07-06 | 2018-01-16 | 上海蔚恩信息咨询有限公司 | A kind of bearing of special construction |
| CN112128236A (en) * | 2020-09-21 | 2020-12-25 | 西安电子科技大学 | Rolling-sliding radial-sliding thrust combined bearing |
| CN112628282A (en) * | 2020-11-17 | 2021-04-09 | 宁波银球小型轴承有限公司 | Bearing with high wear resistance |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4623028A (en) * | 1985-09-16 | 1986-11-18 | Reed Tool Company | Seal assembly for drill bits |
| CN1240870A (en) * | 1999-05-25 | 2000-01-12 | 江汉石油钻头股份有限公司 | Roll-slide combined bearing |
| CN2477889Y (en) * | 2001-01-03 | 2002-02-20 | 王守彬 | Radial silencing rolling/sliding bearing |
| JP2009041676A (en) * | 2007-08-09 | 2009-02-26 | Jtekt Corp | Roller bearing and roller bearing device |
| CN101603567A (en) * | 2009-06-24 | 2009-12-16 | 西南石油大学 | Has the floating bushing sliding bearing of forcing float function |
| CN101806195A (en) * | 2010-03-09 | 2010-08-18 | 江汉石油钻头股份有限公司 | Tricone bit used for high-rotating speed well drilling |
-
2011
- 2011-12-19 CN CN 201110425332 patent/CN102494021B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4623028A (en) * | 1985-09-16 | 1986-11-18 | Reed Tool Company | Seal assembly for drill bits |
| CN1240870A (en) * | 1999-05-25 | 2000-01-12 | 江汉石油钻头股份有限公司 | Roll-slide combined bearing |
| CN2477889Y (en) * | 2001-01-03 | 2002-02-20 | 王守彬 | Radial silencing rolling/sliding bearing |
| JP2009041676A (en) * | 2007-08-09 | 2009-02-26 | Jtekt Corp | Roller bearing and roller bearing device |
| CN101603567A (en) * | 2009-06-24 | 2009-12-16 | 西南石油大学 | Has the floating bushing sliding bearing of forcing float function |
| CN101806195A (en) * | 2010-03-09 | 2010-08-18 | 江汉石油钻头股份有限公司 | Tricone bit used for high-rotating speed well drilling |
Non-Patent Citations (1)
| Title |
|---|
| 卢黎明: "滚滑轴承及其试验研究", 《轴承》, no. 09, 30 September 2011 (2011-09-30), pages 14 - 16 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788083A (en) * | 2012-06-27 | 2012-11-21 | 北京航空航天大学 | Lubricating oil supplying bearing system driven by machinery-fluid coupling |
| CN102788083B (en) * | 2012-06-27 | 2014-08-13 | 北京航空航天大学 | Lubricating oil supplying bearing system driven by machinery-fluid coupling |
| CN102797753A (en) * | 2012-08-28 | 2012-11-28 | 浙江大学 | Pitch-varying elastic conical roller bearing |
| CN102797753B (en) * | 2012-08-28 | 2014-07-23 | 浙江大学 | Pitch-varying elastic conical roller bearing |
| CN104863959A (en) * | 2014-02-24 | 2015-08-26 | 浙江万里学院 | Novel rolling sliding bearing and friction-lubrication mechanism structure |
| CN107588096A (en) * | 2016-07-06 | 2018-01-16 | 上海蔚恩信息咨询有限公司 | A kind of bearing of special construction |
| CN112128236A (en) * | 2020-09-21 | 2020-12-25 | 西安电子科技大学 | Rolling-sliding radial-sliding thrust combined bearing |
| CN112128236B (en) * | 2020-09-21 | 2021-06-25 | 西安电子科技大学 | Rolling-sliding radial-sliding thrust combined bearing |
| CN112628282A (en) * | 2020-11-17 | 2021-04-09 | 宁波银球小型轴承有限公司 | Bearing with high wear resistance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102494021B (en) | 2013-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102494021B (en) | Oil lubricating roll-slide bearing with elastic roller | |
| CN101603567B (en) | Sliding bearing of floating sleeve with forced floating function | |
| CN201953818U (en) | Self-lubricating sliding bearing | |
| CN207229586U (en) | A kind of orientable engineering bearing of self-lubricating | |
| CN102042337A (en) | Self-lubricating sliding bearing | |
| CN203082027U (en) | Distributed sliding bearing with bearing bush matrix surface provided with micro-pit oil pockets | |
| CN205639319U (en) | Novel outer lane V -arrangement inner circle arc raceway ball bearing | |
| CN203948452U (en) | The two raceway roller bearings of axle formula sealed four-row | |
| CN201866097U (en) | Micro flexible rolling bearing | |
| CN102032267A (en) | Sliding bearing of spiral floating bushing | |
| CN200955550Y (en) | Differential self-lubrication sliding bearing | |
| CN201818668U (en) | Cantilever shaft support device | |
| CN207229602U (en) | A kind of combined support seat structure | |
| CN112833094B (en) | Rolling and sliding composite dynamic pressure lubricating bearing of underground power drilling tool | |
| CN104632881A (en) | High-precision double-row tapered roller bearing | |
| CN205401419U (en) | A slide bearing for concrete mixer | |
| CN201963718U (en) | Spiral floating bushing sliding bearing | |
| CN104533294A (en) | Impact-resistant high-load rolling-sliding combined bearing | |
| CN211545430U (en) | Orthogonal roller | |
| CN201874991U (en) | Flexible combined rolling bearing | |
| CN102011797B (en) | Micro flexible combined rolling bearing | |
| CN201359017Y (en) | Retainer for single-row roller bearing of rolling mill | |
| CN202251459U (en) | Retaining structure for steel balls of ball bearing | |
| CN216714983U (en) | Tapered roller bearing | |
| CN207064464U (en) | New unlubricated bearing seat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20161219 |