CN112460138A - Multi-aperture positioning bearing - Google Patents
Multi-aperture positioning bearing Download PDFInfo
- Publication number
- CN112460138A CN112460138A CN202110073082.2A CN202110073082A CN112460138A CN 112460138 A CN112460138 A CN 112460138A CN 202110073082 A CN202110073082 A CN 202110073082A CN 112460138 A CN112460138 A CN 112460138A
- Authority
- CN
- China
- Prior art keywords
- bearing
- ring
- guide
- screw rod
- rod
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/581—Raceways; Race rings integral with other parts, e.g. with housings or machine elements such as shafts or gear wheels
Abstract
The invention discloses a multi-aperture positioning bearing, which comprises a bearing inner ring, a bearing outer ring and balls between the bearing inner ring and the bearing outer ring, wherein a plurality of first guide holes are uniformly and radially arranged on the bearing inner ring, first guide rods are arranged in the first guide holes, the inner ends of the first guide rods penetrate through the inner wall of the bearing inner ring, a first adjusting ring is rotatably arranged on the bearing inner ring, and the first adjusting ring rotates to drive the first guide rods to stretch in the first guide holes so as to tightly prop against a rotating shaft; a plurality of second guide holes are uniformly formed in the bearing outer ring in the radial direction, second guide rods are arranged in the second guide holes, the outer ends of the second guide rods penetrate out of the outer wall of the bearing outer ring, a second adjusting ring is rotatably arranged on one side of the bearing inner ring, and the second adjusting ring rotates to drive the second guide rods to stretch out and draw back in the second guide holes to tightly push against the bearing seat. The multi-aperture positioning bearing can be matched and installed with shafts and bearing seats with different shaft diameters, extra parts of various types are not needed to be matched, and the rotating shaft and the bearing inner ring are guaranteed to be concentric.
Description
Technical Field
The invention belongs to the technical field of bearings, and particularly relates to a multi-aperture positioning bearing.
Background
The bearing is used for reducing the part that rubs between the pivot rotation in-process and the shaft hole on the mechanical rotation axle, can reduce the wearing and tearing between pivot and the shaft hole through the installation bearing to increase mechanical equipment's life. The shaft diameter of the bearing inner ring is fixed, when the bearing and the shaft are assembled, the shaft is cooled by using a principle of expansion with heat and contraction with cold generally, and the shaft can be inserted into the shaft hole of the bearing inner ring to be tightly matched, so that the assembly is inconvenient, one bearing corresponds to one shaft diameter, and the bearings with different shaft hole diameters need to be replaced after the shaft diameter is changed. Therefore, some bearings with adjustable bearing inner ring aperture have appeared, for example, CN106763225A discloses a roller bearing with adjustable shaft mounting aperture, which performs the adjustment of the bearing inner ring aperture by mounting a detachable annular mounting sleeve on the bearing inner ring, but still needs to adjust the aperture by replacing the mounting sleeve with different inner aperture, which is still inconvenient to adjust, and needs to produce a plurality of mounting sleeves with different apertures to match. For another example, CN205478928U discloses an inner ring adjustable bearing, which enables movable fixing pieces to slide by rotating a movable rod, so that the aperture of a shaft hole formed inside each movable fixing piece is adjustable, but this adjustable bearing is likely to cause the rotating shaft and the inner ring of the bearing to be eccentric after the adjustment is completed, and it is necessary to perform very precise measurement or tool to match to ensure the rotating shaft and the inner ring of the bearing to be concentric, so the assembly is still inconvenient, and it is difficult to ensure the rotating shaft and the inner ring of the bearing to be concentric after the assembly.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the multi-aperture positioning bearing which can be matched and installed with various shafts with different shaft diameters and bearing seats, does not need to be matched with additional parts of various types, and ensures that a rotating shaft and a bearing inner ring are concentric.
In order to solve the technical problem, the invention is solved by the following technical scheme: a multi-aperture positioning bearing comprises a bearing inner ring, a bearing outer ring and balls between the bearing inner ring and the bearing outer ring, wherein a plurality of first guide holes are uniformly and radially arranged on the bearing inner ring, first guide rods are arranged in the first guide holes, the inner ends of the first guide rods penetrate out of the inner wall of the bearing inner ring, a first deflector rod is connected to the side surface of each first guide rod, a first convex ring is arranged on one side of the bearing inner ring, a first adjusting ring is rotatably arranged in the first convex ring, a plurality of first arc-shaped guide grooves are uniformly arranged on the first adjusting ring, the first deflector rod penetrates into the first arc-shaped guide grooves, the first adjusting ring rotates to drive the first guide rods to extend and retract in the first guide holes, a first screw rod is rotatably arranged on one side of the first adjusting ring, a first channel for the first screw rod to pass through is arranged on the first convex ring, the periphery of the first convex ring protrudes outwards to form a first positioning platform, a first nut is screwed on the first screw rod, and the first screw rod is tightened by the first nut and the first positioning platform so that the inner end of the first guide rod tightly props against the rotating shaft; a plurality of second guide holes are uniformly and radially arranged on the bearing outer ring, second guide rods are arranged in the second guide holes, the outer ends of the second guide rods penetrate out of the outer wall of the bearing outer ring, a second deflector rod is connected to the side surface of the second guide rods, a second convex ring is arranged on one side of the bearing outer ring, a second adjusting ring is rotationally arranged in the second convex ring, a plurality of second arc-shaped guide grooves are uniformly arranged on the second adjusting ring, the second deflector rod penetrates into the second arc-shaped guide grooves, the second adjusting ring rotates to drive the second guide rods to extend and retract in the second guide holes, a second screw rod is rotationally arranged on one side of the second adjusting ring, a second channel for the second screw rod to pass through is arranged on the second convex ring, the periphery of the second convex ring protrudes outwards to form a second positioning platform, and a second nut is screwed in the second screw rod, the second screw rod is tensioned by the second nut and the second positioning platform, so that the outer end of the second guide rod tightly props against the bearing seat. The bearing can adjust the position of a first guide rod through the rotation of a first adjusting ring, and can adjust the position of a second guide rod through the rotation of a second adjusting ring, during installation, the first adjusting ring is rotated to the position, at the outermost side, of the first guide rod, a shaft passes through a bearing inner ring, then the first adjusting ring is rotated to enable the inner end of the first guide rod to be abutted against the outer wall of the shaft, then a first nut is screwed into a first screw rod, the first screw rod is tensioned through the first nut and a first positioning platform to enable the inner end of the first guide rod to be abutted against the rotating shaft, and therefore the assembly between the shaft and the bearing inner ring is completed; then the second adjusting ring is rotated to the position where the second guide rod is located at the innermost side, the bearing seat is sleeved on the outer side of the bearing outer ring, then the second adjusting ring is rotated to enable the outer end of the second guide rod to be abutted to the inner wall of the bearing seat, then the second screw is screwed into the second screw rod, and the second screw rod is tightened through the second screw nut and the second positioning platform to enable the outer end of the second guide rod to be abutted to the bearing seat. The multi-aperture positioning bearing can be matched and installed with shafts and bearing seats with different shaft diameters, extra parts of various types are not needed to be matched, and the rotating shaft and the bearing inner ring are guaranteed to be concentric.
In the above technical solution, preferably, the inner end of the first guide rod is provided with a first positioning head having an arc surface. The area of line contact can be increased by arranging the first positioning head, so that the positioning is firmer, and the supporting strength is increased.
In the above technical solution, preferably, the outer end of the second guide rod is provided with a second positioning head having an arc surface. The area of line contact can be increased by arranging the second positioning head, so that the positioning is firmer, and the supporting strength is increased.
In the above technical scheme, preferably, first adjusting ring one side is provided with first screw rod holding tank, first screw rod holding tank internal rotation is provided with first screw rod, first screw rod rotates can stretch out or get into completely first screw rod holding tank. By adopting the structure, when the first adjusting ring is assembled with the bearing inner ring, the first screw rod can be shifted into the first screw rod accommodating groove, interference is prevented, and when the first adjusting ring is arranged in the first convex ring, the first screw rod can be rotated to enable the first screw rod to pass through the first channel.
In the above technical scheme, preferably, a second screw rod accommodating groove is formed in one side of the second adjusting ring, the second screw rod is rotatably arranged in the second screw rod accommodating groove, and the second screw rod can extend out or completely enter the second screw rod accommodating groove in a rotating mode. By adopting the structure, the second screw can be shifted into the second screw accommodating groove when the second adjusting ring is assembled with the bearing outer ring, interference is prevented, and when the second adjusting ring is arranged in the second convex ring, the second screw can be rotated to enable the second screw to pass through the second channel.
In the above technical solution, preferably, the first shift lever is connected to the first guide rod through a thread. By adopting the structure, the first deflector rod and the first guide rod can be conveniently assembled.
In the above technical solution, preferably, the second shift lever is connected to the second guide rod through a thread. The structure is adopted to facilitate the assembly of the second deflector rod and the second guide rod.
Compared with the prior art, the invention has the following beneficial effects: the bearing can adjust the position of a first guide rod through the rotation of a first adjusting ring, and can adjust the position of a second guide rod through the rotation of a second adjusting ring, during installation, the first adjusting ring is rotated to the position, at the outermost side, of the first guide rod, a shaft passes through a bearing inner ring, then the first adjusting ring is rotated to enable the inner end of the first guide rod to be abutted against the outer wall of the shaft, then a first nut is screwed into a first screw rod, the first screw rod is tensioned through the first nut and a first positioning platform to enable the inner end of the first guide rod to be abutted against the rotating shaft, and therefore the assembly between the shaft and the bearing inner ring is completed; then the second adjusting ring is rotated to the position where the second guide rod is located at the innermost side, the bearing seat is sleeved on the outer side of the bearing outer ring, then the second adjusting ring is rotated to enable the outer end of the second guide rod to be abutted to the inner wall of the bearing seat, then the second screw is screwed into the second screw rod, and the second screw rod is tightened through the second screw nut and the second positioning platform to enable the outer end of the second guide rod to be abutted to the bearing seat. The multi-aperture positioning bearing can be matched and installed with shafts and bearing seats with different shaft diameters, extra parts of various types are not needed to be matched, and the rotating shaft and the bearing inner ring are guaranteed to be concentric.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of the structure of the first and second adjustment rings in an embodiment of the present invention.
FIG. 3 is a schematic structural diagram of the matching of the bearing inner ring and the bearing outer ring in the embodiment of the invention.
Fig. 4 is a schematic cross-sectional structure of fig. 3.
FIG. 5 is a side view of the bearing inner race and first adjustment ring in an embodiment of the present invention.
FIG. 6 is a side view of the bearing outer race and second adjustment ring in an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 6, a multi-aperture positioning bearing comprises a bearing inner ring 1, a bearing outer ring 2 and balls 3 therebetween, wherein twelve first guide holes 11 are uniformly and radially formed in the bearing inner ring 1, a first guide rod 12 is movably inserted into each first guide hole 11, the inner end of each first guide rod 12 penetrates through the inner wall of the bearing inner ring 1, a first deflector rod 13 is connected to the side surface of each first guide rod 12, a first convex ring 14 is arranged on one side of the bearing inner ring 1, a first adjusting ring 4 is rotatably arranged in each first convex ring 14, twelve first arc-shaped guide grooves 41 are uniformly arranged on each first adjusting ring 4, each first deflector rod 13 penetrates through each first arc-shaped guide groove 41, each first adjusting ring 4 rotates to drive each first guide rod 12 to extend and retract in each first guide hole 11, a first screw 42 is rotatably arranged on one side of each first adjusting ring 4, a first channel 15 for the first screw 42 to pass through is arranged on each first convex ring 14, the outer periphery of the first convex ring 14 protrudes outwards to form a first positioning platform 16, a first nut 17 is screwed on the first screw 42, and the first nut 17 and the first positioning platform 16 tighten the first screw 42 to enable the inner end of the first guide rod 12 to prop against the rotating shaft; twelve second guide holes 21 are uniformly and radially arranged on the bearing outer ring 2, a second guide rod 22 is arranged in each second guide hole 21, the outer end of each second guide rod 22 penetrates out of the outer wall of the bearing outer ring 2, a second deflector rod 23 is connected to the side surface of each second guide rod 22, a second convex ring 24 is arranged on one side of the bearing outer ring 2, a second adjusting ring 5 is rotatably arranged in each second convex ring 24, twelve second arc-shaped guide grooves 51 are uniformly arranged on each second adjusting ring 5, each second deflector rod 23 penetrates into each second arc-shaped guide groove 51, each second adjusting ring 5 rotates to drive the second guide rods to stretch in and out of the corresponding second guide hole 21, a second screw 52 is rotatably arranged on one side of each second adjusting ring 5, a second channel 25 for the second screw 52 to penetrate through is arranged on each second convex ring 24, a second positioning platform 26 is formed by outwards protruding the periphery of each second convex ring 24, a second nut 27 is screwed into each second screw 52, and the second nuts 27 and the second positioning platforms 26 tighten the second screws 52 to tightly press the outer ends of the second guide rods And a bearing seat. During installation, the first adjusting ring 4 is firstly rotated to the position where the first guide rod 12 is located at the outermost side, the shaft is rotated through the bearing inner ring 1, then the first adjusting ring 4 is rotated to enable the inner end of the first guide rod 12 to be abutted against the outer wall of the shaft, then the first nut 17 is screwed into the first screw 42, and the first screw 42 is tightened through the first nut 17 and the first positioning platform 16 to enable the inner end of the first guide rod 12 to be abutted against the rotating shaft, so that the assembly between the shaft and the bearing inner ring 1 is completed; then the second adjusting ring 5 is rotated to the position where the second guiding rod 22 is located at the innermost side, the bearing seat is sleeved outside the bearing outer ring 2, then the second adjusting ring 5 is rotated to enable the outer end of the second guiding rod 22 to be propped against the inner wall of the bearing seat, then the second nut 27 is screwed on the second screw 52, and the second nut 27 and the second positioning platform 26 tighten the second screw 52 to enable the outer end of the second guiding rod 22 to be propped against the bearing seat. The multi-aperture positioning bearing can be matched and installed with shafts and bearing seats with different shaft diameters, extra parts of various types are not needed to be matched, and the rotating shaft and the bearing inner ring are guaranteed to be concentric.
In this embodiment, in order to make the location between bearing and axle and the bearing frame more firm, increase support intensity. The inner end of the first guide rod 12 is provided with a first positioning head 121 with an arc surface, and the outer end of the second guide rod 22 is provided with a second positioning head 221 with an arc surface. Of course to prevent the bearing from sliding axially, annular surfaces may be provided on the shaft and bearing housing to locate the axial position of the first locating head 121 and the second locating head 221.
In this embodiment, one side of the first adjusting ring 4 is provided with a first screw rod receiving groove 43, a first screw rod 42 is rotatably disposed in the first screw rod receiving groove 43, and the first screw rod 42 can extend out of or completely enter the first screw rod receiving groove 43 when rotating. With this structure, when the first adjusting ring 4 is assembled with the bearing inner race 1, the first screw 42 can be rotated into the first screw receiving groove 43, so that interference is prevented, and when the first adjusting ring 4 is fitted into the first projecting ring 14, the first screw 42 can be rotated so that the first screw 42 passes through the first passage 15. Similarly, a second screw rod accommodating groove 53 is formed in one side of the second adjusting ring 5, a second screw rod 52 is rotatably arranged in the second screw rod accommodating groove 53, and the second screw rod 52 can extend out of or completely enter the second screw rod accommodating groove 53 through rotation.
For convenience, the first shift lever 13 is assembled with the first guide rod 12, and the first shift lever 13 is connected with the first guide rod 12 through a screw thread. Similarly, to facilitate the assembly of the second shift lever 23 with the second guide rod 22, the second shift lever 23 is connected with the second guide rod 22 by a screw.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (7)
1. The utility model provides a multi-aperture location bearing, includes bearing inner race (1), bearing outer race (2) and ball (3) between them, its characterized in that: the bearing inner ring (1) is radially and uniformly provided with a plurality of first guide holes (11), the first guide holes (11) are internally provided with first guide rods (12), the inner ends of the first guide rods (12) penetrate out of the inner wall of the bearing inner ring (1), the side surface of each first guide rod (12) is connected with a first driving lever (13), one side of the bearing inner ring (1) is provided with a first convex ring (14), a first adjusting ring (4) is rotationally arranged in each first convex ring (14), a plurality of first arc-shaped guide grooves (41) are uniformly arranged on each first adjusting ring (4), each first driving lever (13) penetrates into each first arc-shaped guide groove (41), each first adjusting ring (4) rotates to drive each first guide rod (12) to extend and retract in each first guide hole (11), one side of each first adjusting ring (4) is rotatably provided with a first screw rod (42), a first channel (15) for the first screw rod (42) to pass through is arranged on the first convex ring (14), the periphery of the first convex ring (14) protrudes outwards to form a first positioning platform (16), a first nut (17) is screwed on the first screw rod (42), and the first nut (17) and the first positioning platform (16) tension the first screw rod (42) so that the inner end of the first guide rod (12) tightly supports the rotating shaft; a plurality of second guide holes (21) are uniformly and radially arranged on the bearing outer ring (2), a second guide rod (22) is arranged in each second guide hole (21), the outer end of each second guide rod (22) penetrates out of the outer wall of the bearing outer ring (2), a second driving lever (23) is connected to the side surface of each second guide rod (22), a second convex ring (24) is arranged on one side of the bearing outer ring (2), a second adjusting ring (5) is rotatably arranged in each second convex ring (24), a plurality of second arc-shaped guide grooves (51) are uniformly arranged on each second adjusting ring (5), each second driving lever (23) penetrates into each second arc-shaped guide groove (51), each second adjusting ring (5) rotates to drive each second guide rod to stretch in each second guide hole (21), a second screw (52) is rotatably arranged on one side of each second adjusting ring (5), the second convex ring (24) is provided with a second channel (25) for the second screw rod (52) to pass through, the periphery of the second convex ring (24) protrudes outwards to form a second positioning platform (26), a second nut (27) is screwed on the second screw rod (52), and the second nut (27) and the second positioning platform (26) tension the second screw rod (52) so that the outer end of the second guide rod (22) props against the bearing seat.
2. A multi-aperture positioning bearing as claimed in claim 1 wherein: the inner end of the first guide rod (12) is provided with a first positioning head (121) with an arc surface.
3. A multi-aperture positioning bearing as claimed in claim 1 wherein: and a second positioning head (221) with an arc surface is arranged at the outer end of the second guide rod (22).
4. A multi-aperture positioning bearing as claimed in claim 1 wherein: first adjustable ring (4) one side is provided with first screw rod holding tank (43), first screw rod holding tank (43) internal rotation is provided with first screw rod (42), first screw rod (42) rotate can stretch out or get into completely first screw rod holding tank (43).
5. A multi-aperture positioning bearing as claimed in claim 1 wherein: second screw rod holding tank (53) is provided with on one side of second adjustable ring (5), second screw rod (52) is provided with in second screw rod holding tank (53) internal rotation, second screw rod (52) rotate can stretch out or get into completely second screw rod holding tank (53).
6. A multi-aperture positioning bearing as claimed in claim 1 wherein: the first driving lever (13) is connected with the first guide rod (12) through threads.
7. A multi-aperture positioning bearing as claimed in claim 1 wherein: the second driving lever (23) is connected with the second guide rod (22) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110073082.2A CN112460138A (en) | 2021-01-20 | 2021-01-20 | Multi-aperture positioning bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110073082.2A CN112460138A (en) | 2021-01-20 | 2021-01-20 | Multi-aperture positioning bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112460138A true CN112460138A (en) | 2021-03-09 |
Family
ID=74802692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110073082.2A Withdrawn CN112460138A (en) | 2021-01-20 | 2021-01-20 | Multi-aperture positioning bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112460138A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069344A (en) * | 2011-01-14 | 2011-05-25 | 吉林大学 | Variable-diameter bearing inner ring induction replacer |
| CN203835957U (en) * | 2014-04-26 | 2014-09-17 | 台州市路桥区精达轴承厂 | Deep groove ball bearing with adjustable inner ring |
| CN203979130U (en) * | 2014-08-13 | 2014-12-03 | 慈溪市特种轴承有限公司 | A kind of bearing |
| CN203979167U (en) * | 2014-08-13 | 2014-12-03 | 慈溪市特种轴承有限公司 | A kind of bearing with fastening piece |
| US20170350452A1 (en) * | 2016-06-02 | 2017-12-07 | Schaeffler Technologies AG & Co. KG | Bearing assembly with expanded outer diameter |
| CN208738598U (en) * | 2018-08-30 | 2019-04-12 | 陈子宝 | Chute-type cable girdling machine |
| CN209838974U (en) * | 2019-04-28 | 2019-12-24 | 上海永久轴承厂 | Double-layer sealing pairing bearing |
| CN110671432A (en) * | 2019-09-27 | 2020-01-10 | 南京荧河谷科技有限公司 | Variable inner diameter bearing |
| CN210178428U (en) * | 2019-07-29 | 2020-03-24 | 大唐郓城发电有限公司 | Steam turbine thrust bearing |
-
2021
- 2021-01-20 CN CN202110073082.2A patent/CN112460138A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069344A (en) * | 2011-01-14 | 2011-05-25 | 吉林大学 | Variable-diameter bearing inner ring induction replacer |
| CN203835957U (en) * | 2014-04-26 | 2014-09-17 | 台州市路桥区精达轴承厂 | Deep groove ball bearing with adjustable inner ring |
| CN203979130U (en) * | 2014-08-13 | 2014-12-03 | 慈溪市特种轴承有限公司 | A kind of bearing |
| CN203979167U (en) * | 2014-08-13 | 2014-12-03 | 慈溪市特种轴承有限公司 | A kind of bearing with fastening piece |
| US20170350452A1 (en) * | 2016-06-02 | 2017-12-07 | Schaeffler Technologies AG & Co. KG | Bearing assembly with expanded outer diameter |
| CN208738598U (en) * | 2018-08-30 | 2019-04-12 | 陈子宝 | Chute-type cable girdling machine |
| CN209838974U (en) * | 2019-04-28 | 2019-12-24 | 上海永久轴承厂 | Double-layer sealing pairing bearing |
| CN210178428U (en) * | 2019-07-29 | 2020-03-24 | 大唐郓城发电有限公司 | Steam turbine thrust bearing |
| CN110671432A (en) * | 2019-09-27 | 2020-01-10 | 南京荧河谷科技有限公司 | Variable inner diameter bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4325590A (en) | Self-contained pre-loaded antifriction bearing assembly | |
| CN105102835B (en) | Box bearing assembly | |
| CN111266861B (en) | Assembly fixture of low-pressure turbine of engine | |
| CN102470409A (en) | Method and apparatus for setting rolling element bearings in rolling mills | |
| CN209621853U (en) | A kind of bearing of double nut vertical pulling lock sleeve | |
| CN111376016A (en) | Positioning and guiding tool for low-pressure turbine of engine | |
| CN112460138A (en) | Multi-aperture positioning bearing | |
| CN205798472U (en) | A kind of adjustable deep-hole boring instrument | |
| CN105945313A (en) | Adjustable deep hole boring tool and adjusting method thereof | |
| JPH10109128A (en) | Plastic working machine for tubular work | |
| CN111300007A (en) | Multifunctional bearing press-in device | |
| US20030177877A1 (en) | Adjustable live center apparatus | |
| CA2629989C (en) | Davenport multi-spindle screw machine, and improved tool arm for use therein | |
| JPH0847832A (en) | Bearing clamp device of turning jig | |
| JP2019210996A (en) | Ball screw | |
| US6817273B2 (en) | High precision spindle assembly, and method of forming same | |
| US7044844B2 (en) | Shaping pulley assembly for belt notching machine | |
| US6612587B2 (en) | Manually tightened chuck | |
| US2555419A (en) | Live center chuck | |
| CN112503086A (en) | Bearing with adjustable shaft hole diameter | |
| CN112460139A (en) | Multi-aperture positioning bearing | |
| CN112317918A (en) | Cutting mechanical arm | |
| CN106976169B (en) | A kind of main shaft of multiline cutter rotation-preventing mechanism | |
| JP4777405B2 (en) | Error correction type bearing screw transfer device | |
| CN112387997B (en) | Lathe tool anchor clamps subassembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210309 |
|
| WW01 | Invention patent application withdrawn after publication |