CN110735854A - tapered roller bearing for high-speed aviation - Google Patents
tapered roller bearing for high-speed aviation Download PDFInfo
- Publication number
- CN110735854A CN110735854A CN201911261107.0A CN201911261107A CN110735854A CN 110735854 A CN110735854 A CN 110735854A CN 201911261107 A CN201911261107 A CN 201911261107A CN 110735854 A CN110735854 A CN 110735854A
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- Prior art keywords
- bearing
- tapered roller
- inner ring
- guide
- shaped retainer
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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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
- F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
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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
- F16C33/46—Cages for rollers or needles
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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
- F16C33/46—Cages for rollers or needles
- F16C33/56—Selection of substances
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
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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
- F16C33/62—Selection of substances
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
- F16C33/6677—Details of supply of the liquid to the bearing, e.g. passages or nozzles from radial inside, e.g. via a passage through the shaft and/or inner ring
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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
- F16C2202/00—Solid materials defined by their properties
- F16C2202/02—Mechanical properties
- F16C2202/08—Resilience, elasticity, super-elasticity
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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
- F16C2204/00—Metallic materials; Alloys
- F16C2204/60—Ferrous alloys, e.g. steel alloys
- F16C2204/70—Ferrous alloys, e.g. steel alloys with chromium as the next major constituent
- F16C2204/72—Ferrous alloys, e.g. steel alloys with chromium as the next major constituent with nickel as further constituent, e.g. stainless steel
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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
- F16C2204/00—Metallic materials; Alloys
- F16C2204/60—Ferrous alloys, e.g. steel alloys
- F16C2204/74—Ferrous alloys, e.g. steel alloys with manganese as the next major constituent
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a tapered roller bearing for high-speed aviation, which relates to the field of design of a high-speed tapered roller bearing and aims to solve the problem that the tapered roller bearing cannot work under a high-speed working condition due to the sliding friction phenomenon between the large flange of a bearing inner ring and the end surface of a roller in the conventional tapered roller bearing, wherein the N is a positive integer, an auxiliary guide component is fixedly connected to the end of the bearing outer ring, a Z-shaped retainer is arranged between the bearing inner ring and the bearing outer ring, guide surfaces in the Z-shaped retainer are arranged corresponding to the large flange of the bearing inner ring, the other guide surfaces in the Z-shaped retainer are arranged corresponding to the inner surface of the auxiliary guide component, and the N tapered rollers are arranged in the Z-shaped retainer at equal intervals along the circumferential direction.
Description
Technical Field
The invention relates to the field of high-speed tapered roller bearing design, in particular to high-speed tapered roller bearings for aviation.
Background
The traditional cylindrical roller bearing and the ball bearing can have different degrees of skidding in the application process, the tapered roller bearing hardly has the problem of skidding, the tapered roller bearing can bear radial and axial combined load, the bearing capacity is high, but the bearing is limited by the structure, particularly the sliding friction between the large flange of the inner ring of the bearing and the end surface of the roller can generate a large amount of heat in the high-speed operation process, and the high-speed application range of the bearing is limited, so that tapered roller bearings capable of working under the high-speed working condition are very in line with the actual requirement.
Disclosure of Invention
The invention aims to solve the problem that the tapered roller bearing cannot work under a high-speed working condition due to the sliding friction phenomenon between the large flange of the bearing inner ring and the roller end surface in the conventional tapered roller bearing, and further provides tapered roller bearings for high-speed aviation
A tapered roller bearing for high-speed aviation comprises a bearing inner ring, a bearing outer ring, a Z-shaped retainer, an auxiliary guide part and N tapered rollers, wherein N is a positive integer, the auxiliary guide part is fixedly connected to the end of the bearing outer ring, the Z-shaped retainer is arranged between the bearing inner ring and the bearing outer ring, guide surfaces in the Z-shaped retainer are arranged corresponding to the large flange of the bearing inner ring, the other guide surfaces in the Z-shaped retainer are arranged corresponding to the inner surface of the auxiliary guide part, the N tapered rollers are arranged in the Z-shaped retainer at equal intervals along the circumferential direction, each tapered roller is respectively contacted with the bearing inner ring and the raceway of the bearing outer ring, M lubrication oil guide holes are processed on the inner wall of the bearing inner ring at equal intervals along the circumferential direction, M is a positive integer, an annular oil storage groove is processed on the contact surface of the bearing inner ring and the shaft section, and each lubrication oil guide hole is;
, M guide surface lubrication holes are machined on the end face where the large flange is located in the bearing inner ring at equal intervals along the circumferential direction, the axis of each guide surface lubrication hole is parallel to the axis of the bearing inner ring, and each guide surface lubrication hole is arranged between every two adjacent lubrication oil guide holes;
, the value range of M is 35-50;
, the auxiliary guide component is an annular steel ring, and the guide surface at the other end of the Z-shaped retainer is in contact with the inner side wall of the annular steel ring;
, the guide value range of the Z-shaped retainer is 0.002mm-0.008 mm;
, the inner diameter of the bearing inner ring ranges from 80mm to 120 mm;
, the Z-shaped retainer is made of 40 CrNiMoA;
, the bearing inner ring, the bearing outer ring and the tapered roller are all made of M50 NIL;
compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through the design of the inner ring lubricating structure, an under-ring lubricating mode is adopted, the ring-opening under-lubricating oil guide hole is formed at the joint of the large flange of the inner ring of the bearing and the inner roller way, and meanwhile, the oil storage groove is additionally formed on the inner diameter surface, so that the sliding friction influence of the large flange of the inner ring and the same surface of the roller can be improved, the lubricating efficiency is improved, and the wear risk of the guide surface of the retainer is reduced;
2. the novel Z-shaped retainer is adopted to replace a retainer structure applied to a tapered roller bearing in the prior art, the precision of the retainer can be effectively improved, meanwhile, the self-lubricating performance of the retainer is improved by adopting an integral silver plating mode, and the Z shape of the Z-shaped retainer is beneficial to lubricating oil entering the small end face of the roller and eliminating the stirring effect caused by excessive lubrication.
And 3, the Z-shaped retainer is made of 40CrNiMoA and has the characteristics of high strength and impact resistance, and the bearing inner ring, the bearing outer ring and the rolling body are made of M50NIL and have the characteristics of excellent toughness and impact resistance.
Drawings
FIG. 1 is an overall axial cross-sectional view of the present invention;
FIG. 2 is an axial sectional view of the inner race of the bearing of the present invention sleeved on the shaft section;
FIG. 3 is a schematic radial sectional view of the inner race of the bearing of the present invention sleeved on the shaft section;
FIG. 4 is a single-sided cross-sectional view of the present invention;
FIG. 5 is a flow diagram of the oil circuit during operation of the present invention;
in the figure, 1, a bearing inner ring, 11 lubricating oil guide holes, 12 annular oil storage grooves, 13 guide surface lubricating holes, 2 bearing outer rings, 3 tapered rollers, 4Z-shaped retainers, 5 auxiliary guide parts and 6 hollow shafts.
Detailed Description
In specific embodiment , referring to fig. 1 and 2, the embodiment is described, wherein the high-speed tapered roller bearing for aviation comprises a bearing inner ring 1, a bearing outer ring 2, a Z-shaped cage 4, an auxiliary guide member 5 and N tapered rollers 3, where N is a positive integer, the auxiliary guide member 5 is fixedly connected to the end of the bearing outer ring 2, the Z-shaped cage 4 is installed between the bearing inner ring 1 and the bearing outer ring 2, guide N tapered rollers 3 in the Z-shaped cage 4 are installed in the Z-shaped cage 4 at equal intervals in the circumferential direction, each tapered roller 3 is respectively arranged corresponding to the large flange of the rolling connection ring 1 of the bearing inner ring 1 and the bearing outer ring 2, another guide surfaces in the Z-shaped cage 4 are arranged corresponding to the inner surface of the auxiliary guide member 5, the N tapered rollers 3 are installed in the Z-shaped cage 4 at equal intervals in the circumferential direction, each tapered roller 3 is respectively in contact with the raceways of the bearing inner ring 1 and the bearing outer ring 2, M lubricating oil storage holes are machined at equal intervals on the contact surface of the bearing inner ring 1 with the tapered rollers 3, M is an integer, the inner ring 12 of the bearing inner ring, and each tapered roller guide groove is communicated with the lubricating oil hole.
In the present embodiment, the cross section perpendicular to the axis in the Z-shaped retainer 4 is formed in a single side shape in a "Z" shape, the retainer of the conventional tapered roller bearing is a basket-shaped retainer, which is limited by the processing method and has low precision, and the retainer guide method is roller guide, which easily causes the unstable operation of the bearing and increases the inertial resistance of the retainer. The Z-shaped entity is machined by using a machining method for keeping, so that the precision of the retainer can be effectively improved, and meanwhile, the self-lubricating property of the retainer is improved by adopting an integral silver plating mode, and the Z-shaped structure is beneficial to lubricating oil entering the small end face of the roller and eliminating the stirring effect caused by excessive lubrication; the number N of the tapered rollers 3 is determined according to the specification of the bearing used.
In the embodiment, in order to improve the sliding friction influence between the large flange of the inner ring and the same surface of the roller, a lubricating oil guide hole 11 is formed at the joint of the large flange of the bearing inner ring 1 and the inner roller way, and an annular oil storage groove 12 is formed in the inner diameter surface, so that the lubricating efficiency is improved; in order to reduce the risk of abrasion of the guide surface of the retainer, a lubricating oil path is arranged on the large flange of the inner ring, as shown in figure 2. Fig. 3 is a schematic view of the flow path of the lubricating oil in the working state of the bearing, and it can be seen that the lubricating oil passes through the oil passage in the shaft and enters the oil storage groove under the inner diameter surface of the inner ring and the lubricating oil hole under the ring under the action of the oil supply pressure and the centrifugal effect, so that the lubricating oil enters between the large flange and the end surface of the roller to play roles of lubrication and cooling.
Second embodiment, referring to fig. 4, the present embodiment is described, and is to define the groove-body annular oil storage groove 12 in embodiment , in this embodiment, M guide surface lubrication holes 13 are machined at equal intervals along the circumferential direction on the end surface where the large rib is located in the bearing inner ring 1, the axis of each guide surface lubrication hole 13 is arranged parallel to the axis of the bearing inner ring 1, and each guide surface lubrication hole 13 is arranged between two adjacent lubrication oil guide holes 11, and other components and connection modes are the same as those in embodiment .
The guide surface lubricating hole 13 is additionally arranged in the embodiment and is mainly used for lubricating the contact surface of the Z-shaped retainer 4 and the large flange of the bearing inner ring 1 and reducing heat generated by relative friction between the Z-shaped retainer 4 and the bearing inner ring 1 during working.
Third embodiment, the present embodiment is described with reference to fig. 3, and the present embodiment is to limit the number of tapered rollers 3 in embodiment to , where N is in the range of 35 to 50 in the present embodiment, and other components and connection modes are the same as those in embodiment .
Fourth embodiment the present embodiment will be described with reference to fig. 4, which is to limit the lubricating oil guide hole 11 of embodiment to . in this embodiment, the diameter of the lubricating oil guide hole 11 is in the range of 1-1.02mm, the diameter of the guide surface lubricating hole 13 is the same as that of the lubricating oil guide hole 11, and the other components and connection modes are the same as those of embodiment .
In the embodiment, the number of the lubricating oil guiding holes 11 and the strength of the bearing inner ring 1 are considered, the aperture range of the lubricating oil guiding holes 11 is most suitable to be 1-1.02mm, the flow of lubricating oil is influenced by too small aperture, the rigidity of the bearing inner ring 1 is easily influenced by too large aperture, and the bearing inner ring 1 is internally broken under the influence of load after long-time operation.
Fifth embodiment this embodiment is described with reference to fig. 4, which is to limit the auxiliary guide member 5 of embodiment to , wherein the auxiliary guide member 5 is an annular steel ring, and the guide surface of the other end of the Z-shaped retainer 4 contacts the inner sidewall of the annular steel ring, and the other components and connection method are the same as embodiment .
The reason why the auxiliary guide member 5 is provided in the present embodiment is that in the tapered roller bearing, since the rolling elements are conical, the bearing outer ring 2 is provided on the side of the tapered roller small end face to be large in order to prevent the rollers from falling, and there is no space for the contact with the Z-shaped cage 4 to be unable to play a guiding role, and therefore the auxiliary guide member 5 is provided for guiding the Z-shaped cage 4.
Sixthly, the present embodiment will be described with reference to fig. 4, in which the Z-shaped holder 4 described in the fifth embodiment is further defined by , and in the present embodiment, the range of the guide value of the Z-shaped holder 4 is 0.002mm to 0.008mm, and other components and connection modes are the same as those of the embodiment .
The Z-shaped cage 4 in this embodiment may be internally guided or externally guided, for example, by adding additional structure to the large end face of the bearing outer ring to provide a guide surface for the cage, as shown in fig. 4. The guide range of the Z-shaped retainer 4 is 0.002mm-0.008mm, and if the guide range is too large, lubricating oil is easy to leak.
Seventh embodiment, the present embodiment is described with reference to fig. 4, and the present embodiment is further defined by , where the inner diameter of the bearing inner ring 1 in the fifth embodiment ranges from 80mm to 120mm, and other components and connection modes are the same as those in the first embodiment .
Eighth embodiment the present embodiment will be described with reference to fig. 1, and the present embodiment is further defined by with respect to the Z-shaped cage 4 according to the fifth embodiment, and in the present embodiment, the material of the Z-shaped cage 4 is 40crnimoa, and other components and connection modes are the same as those of embodiment .
In the embodiment, the Z-shaped retainer is made of 40CrNiMoA, and has the characteristics of high strength and impact resistance.
Ninth embodiment the present embodiment will be described with reference to fig. 1, and the present embodiment is defined by the bearing inner ring 1, the bearing outer ring 2, and the tapered rollers 3 described in the fifth embodiment, and in the present embodiment, the bearing inner ring 1, the bearing outer ring 2, and the tapered rollers 3 are all made of m 50nil.
In the embodiment, the bearing inner ring, the bearing outer ring and the rolling body are made of M50NIL, and have the characteristics of excellent toughness and impact performance.
Principle of operation
An oil guide groove is processed on a shaft sleeved during working, and is used for guiding lubricating oil to enter between each conical roller 3 and the rolling channel along each lubricating oil guide hole 11 through the annular oil storage groove 12 to realize lubrication, and part of the lubricating oil enters between the Z-shaped retainer 4 and the bearing inner ring 1 through the annular oil storage groove 12 along each guide surface lubricating hole 13 to form a lubricating gap for lubricating the Z-shaped retainer 4.
Claims (9)
- The tapered roller bearing for high-speed aviation is characterized by comprising a bearing inner ring (1), a bearing outer ring (2), a Z-shaped retainer (4), an auxiliary guide part (5) and N tapered rollers (3), wherein N is a positive integer, the auxiliary guide part (5) is fixedly connected to a end of the bearing outer ring (2), the Z-shaped retainer (4) is installed between the bearing inner ring (1) and the bearing outer ring (2), guide surfaces in the Z-shaped retainer (4) are arranged corresponding to a large flange of the bearing inner ring (1), other guide surfaces in the Z-shaped retainer (4) are arranged corresponding to the inner surface of the auxiliary guide part (5), the N tapered rollers (3) are arranged in the Z-shaped retainer (4) along the circumferential direction at equal intervals, each tapered roller (3) is in raceway contact with the bearing inner ring (1) and the bearing outer ring (2), M lubricating oil storage holes (11) are machined in the contact surface of the tapered rollers (3) along the circumferential direction, M is a positive integer, the inner wall of the bearing inner ring (1) is provided with an annular oil guide groove (12), and each annular roller guide groove (11) is communicated with the annular oil guide groove (12).
- 2. The tapered roller bearing for high-speed aviation according to claim 1, wherein M number of guide surface lubrication holes (13) are formed in the bearing inner ring (1) at the end face where the large flange is located at equal intervals along the circumferential direction, the axis of each guide surface lubrication hole (13) is arranged in parallel with the axis of the bearing inner ring (1), and each guide surface lubrication hole (13) is arranged between two adjacent lubrication oil guide holes (11).
- 3. The tapered roller bearings for high-speed aviation according to claim 1, wherein M is in the range of 35-50.
- 4. The tapered roller bearing for high-speed aviation according to claim 2, wherein the diameter of the lubrication oil guide hole (11) is in the range of 1-1.02mm, and the diameter of the guide surface lubrication hole (13) is the same as that of the lubrication oil guide hole (11).
- 5. The tapered roller bearing for high-speed aviation according to claim 1, wherein the auxiliary guide member (5) is an annular steel ring, and the guide surface of the other end of the Z-shaped cage (4) is in contact with the inner side wall of the annular steel ring.
- 6. The tapered roller bearing for high-speed aviation according to claim 1, wherein the Z-shaped cage (4) has a guidance value in the range of 0.002mm-0.008 mm.
- 7. The kinds of tapered roller bearings for high-speed aviation according to claim 1, wherein the inner diameter of the bearing inner race (1) ranges from 80mm to 120 mm.
- 8. The tapered roller bearing for high-speed aviation according to claim 1, wherein the Z-shaped retainer (4) is made of 40 CrNiMoA.
- 9. The tapered roller bearing for high-speed aviation according to claim 1, wherein the material of the bearing inner ring (1), the material of the bearing outer ring (2) and the material of the tapered rollers (3) are all M50 NIL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911261107.0A CN110735854A (en) | 2019-12-10 | 2019-12-10 | tapered roller bearing for high-speed aviation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911261107.0A CN110735854A (en) | 2019-12-10 | 2019-12-10 | tapered roller bearing for high-speed aviation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110735854A true CN110735854A (en) | 2020-01-31 |
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ID=69274518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911261107.0A Pending CN110735854A (en) | 2019-12-10 | 2019-12-10 | tapered roller bearing for high-speed aviation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110735854A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117128244A (en) * | 2023-09-27 | 2023-11-28 | 凌远科技股份有限公司 | Hobbing cutter bearing lubricating device and method for heading machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202659732U (en) * | 2012-04-16 | 2013-01-09 | 洛阳Lyc轴承有限公司 | Oil-gathering and ring lubrication oil supplying structure of planet gear self-aligning roller bearing |
| CN204152957U (en) * | 2014-10-18 | 2015-02-11 | 湖州铧星轴承有限公司 | High loading elevator traction sheave special bearing |
| CN104455009A (en) * | 2014-12-01 | 2015-03-25 | 新昌县澄潭镇苗平机械厂 | Bearing |
| CN206682156U (en) * | 2017-04-14 | 2017-11-28 | 洛阳德润精密机床轴承有限公司 | Taper roll bearing |
| CN207989534U (en) * | 2018-03-22 | 2018-10-19 | 人本集团有限公司 | Cylinder roller bearing with fuel feed hole and bearing ring |
-
2019
- 2019-12-10 CN CN201911261107.0A patent/CN110735854A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202659732U (en) * | 2012-04-16 | 2013-01-09 | 洛阳Lyc轴承有限公司 | Oil-gathering and ring lubrication oil supplying structure of planet gear self-aligning roller bearing |
| CN204152957U (en) * | 2014-10-18 | 2015-02-11 | 湖州铧星轴承有限公司 | High loading elevator traction sheave special bearing |
| CN104455009A (en) * | 2014-12-01 | 2015-03-25 | 新昌县澄潭镇苗平机械厂 | Bearing |
| CN206682156U (en) * | 2017-04-14 | 2017-11-28 | 洛阳德润精密机床轴承有限公司 | Taper roll bearing |
| CN207989534U (en) * | 2018-03-22 | 2018-10-19 | 人本集团有限公司 | Cylinder roller bearing with fuel feed hole and bearing ring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117128244A (en) * | 2023-09-27 | 2023-11-28 | 凌远科技股份有限公司 | Hobbing cutter bearing lubricating device and method for heading machine |
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