CN1327143C - Sealed separable cylindrical roller bearing - Google Patents
Sealed separable cylindrical roller bearing Download PDFInfo
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- CN1327143C CN1327143C CNB2004100209085A CN200410020908A CN1327143C CN 1327143 C CN1327143 C CN 1327143C CN B2004100209085 A CNB2004100209085 A CN B2004100209085A CN 200410020908 A CN200410020908 A CN 200410020908A CN 1327143 C CN1327143 C CN 1327143C
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- roller bearings
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- 238000007789 sealing Methods 0.000 claims abstract description 93
- 239000011159 matrix material Substances 0.000 claims description 26
- 239000007787 solid Substances 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 abstract description 35
- 239000002184 metal Substances 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 24
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to a sealed separable cylindrical roller bearing. The part near the end surface between two sleeve rings of the separable cylindrical roller bearing is provided with a sealing mechanism composed of a metal framework and a sealing rubber ring. A positioning flange which can be clamped on the inner surface of a blocked edge of an outer ring is arranged on the outer circumference of a basal body of the framework, and the sealing rubber ring arranged on the framework is provided with a sealing lip which can be in contact with an inner ring. A positioning flange which can be clamped on the inner surface of a blocked edge of the inner ring is arranged on the outer circumference of the basal body of the framework, and the sealing rubber ring arranged on the framework is provided with a sealing lip which can be in contact with the outer ring. The present invention keeps various performances of the existing bearing, such as installation mode, carrying capacity, unchanged rotary speed, the temperature rise not exceeding the using requirement, etc., and has favorable sealing performance. The service life and the reliability of the present invention are greatly improved. The present invention operates in severe environment with a large amount of powder dust and water. The service life of the present invention is 3 to 10 times longer than that of the existing bearing. A user can automatically and manually change the sealing mechanism of the present invention during the period of disassembling and maintaining equipment.
Description
Technical field
The present invention relates to a kind of bearing.
Background technique
At present, the separable type roller bearing is Open architecture both at home and abroad, if it might keep its usability for a long time under good working environment.But this bearing widespread usage is on the rolling mill roll of work under bad environment.When milling train during in steel rolling, the scale that the cooling water of roll and steel rolling produce is easy to enter bearing inside, and cooling water can make lubricant oil lose greasy property, and scale can make the rolling surface fatigue flake prematurely of bearing.Therefore the life time of above-mentioned bearing only is 1-3 month; though do not reach the theoretical life-span; but must change; otherwise it is light then influence the usability of bearing; heavy then can make that bearing burns, cracked, locking, in case the bearing cisco unity malfunction, it can cause the milling train of online production to be shut down suddenly; red-hot steel material is trapped on the conveyor belt, and consequence is very serious.
Summary of the invention
The object of the present invention is to provide a kind of under the prerequisite that is not changing every performances such as existing Bearing Installation mode, bearing capacity, rotating speed, temperature rise requirement, the sealed type separable type roller bearing that can prolong its working life significantly.
The present invention is that the part near end face is provided with sealing mechanism between existing two lassos of separable type roller bearing (inner ring and outer ring), and sealing mechanism mainly includes metal frame and O-ring seal.Above-mentioned metal frame can be designed to different shape, but the ring matrix is all arranged, and its external diameter is less than the outer ring internal diameter, and internal diameter is greater than the inner ring external diameter, and it can be with the most of covering in Internal and external cycle annular space.Be provided with the cylindrical shape locating flange that is attached thereto on the outer shroud periphery of this matrix, the bus of this locating flange is vertical with the matrix face.When skeleton placed between the Internal and external cycle part near end face, the locating flange of skeleton then was stuck on the internal surface of outer ring rib skeleton is located.The outward flange of above-mentioned skeleton can directly contact with the internal surface of outer ring rib, for increasing sealing effect, can be provided with Sealing between the two, and it can be to be provided with separately, also can be to connect together with the O-ring seal that is located on the skeleton.
The O-ring seal of being made by oil resistant rubber (or oil resistant high-temperature resistant rubber) that is located on (gluing or hot pressing) skeleton can have multiple structural type, its part that can contact with inner ring is that sealing lip can be single lip, also can be many lips arranged side by side, these many lips can be separately independently, also can connect together; Above-mentioned sealing lip can be solid, also can be hollow, also can establish pore above.Contacting between above-mentioned sealing lip and the inner ring can be interference fit, it also can be transition fit, it can also be the activity contact matching, be that common state lower seal lip does not contact with inner ring, when the foreign material that have pressure when the sealing lip attacks, its pressure makes sealing lip draw close to the conical surface of inner ring, and both gaps increase with pressure and reduce, and may ultimately reach the interference contact.Above-mentioned sealing mechanism is fitted together with the outer coil assembly that is made of outer ring, roller and retainer earlier, and then according to the assembling of the linkage editor of separable roller bearing, for making the user can change sealing mechanism by hand voluntarily, be preferably in outer ring rib internal surface and end face intersection and establish the conical surface that the guiding sealing mechanism is packed in the equipment dismounting maintenance period.In addition, if skeleton locating flange free end is in bearing, preferably the external diameter of its free end portion is greater than the external diameter of other flange portion, this evagination part is corresponding with the circular orientation groove on the rib internal surface of outer ring, sealing mechanism can not be moved axially, it is by inner ring that minority separable type roller bearing is also arranged, roller and retainer constitute inner ring assembly, and then be assembled together with the outer ring, the structure of so above-mentioned sealing mechanism need not change, only need change corresponding relation, the inner ring that changes into that promptly relates to the outer ring, relate to the outer ring that changes into of inner ring, its particular content has: the locating flange of skeleton is located at and encircles in the matrix on the periphery, when skeleton places the part of close end face between two lassos, the locating flange of skeleton then is stuck on the internal surface of inner ring rib, and the part that O-ring seal contacts with the outer ring is a sealing lip.Be preferably in the inner ring rib internal surface and the conical surface is established in the end face intersection, if skeleton locating flange free end is in bearing, the external diameter of its free end portion is less than the external diameter of other flange portion, and this evagination part is corresponding with the circular orientation groove on the inner ring rib internal surface.
The present invention has following advantage:
1, the present invention has not only kept mounting type, bearing capacity, the rotating speed of existing bearing constant, temperature rise is no more than every performances such as usage requirement, but also has excellent sealing performance, its working life and reliability have been increased greatly, both made in the rugged environment that a large amount of dust and water are arranged and moved, also be 3-10 times of existing bearing its working life.
2, sealing mechanism of the present invention can be dismantled the maintenance period by user's replacing by hand voluntarily at equipment.
3, bearing of the present invention can not only be used on the milling train, but also can be used on the equipment of other work under bad environment.
The description of drawings book
Fig. 1 is that the master of example 1 of the present invention looks generalized section.
Fig. 2 is the local main section enlarged diagram of looking of example 1 sealing mechanism of the present invention.
Fig. 3 is the local main section enlarged diagrams of looking of example 2 sealing mechanisms of the present invention.
Fig. 4 is the local main section enlarged diagrams of looking of example 3 sealing mechanisms of the present invention.
Fig. 5 is the local main section enlarged diagrams of looking of example 4 sealing mechanisms of the present invention.
Fig. 6 is the local main section enlarged diagrams of looking of example 5 sealing mechanisms of the present invention.
Fig. 7 is the local main section enlarged diagrams of looking of example 6 sealing mechanisms of the present invention.
Fig. 8 is the local main section enlarged diagrams of looking of example 7 sealing mechanisms of the present invention.
Fig. 9 is the local main section enlarged diagrams of looking of example 8 sealing mechanisms of the present invention.
Figure 10 is the local main section enlarged diagrams of looking of example 9 sealing mechanisms of the present invention.
Figure 11 is the local main section enlarged diagrams of looking of example 10 sealing mechanisms of the present invention.
Figure 12 is the local main section enlarged diagrams of looking of example 11 sealing mechanisms of the present invention.
Figure 13 is the local main section enlarged diagrams of looking of example 12 sealing mechanisms of the present invention.
Embodiment
Look in the generalized section sealed type separable type four-line column roller bearing master shown in Figure 1, be provided with four-row cylindrical roller 4 and the retainer 5 corresponding with this four-row cylindrical roller between the outer ring 2 that outer circumferential face is provided with " 0 " RunddichtringO 1 and the inner ring 3, the part of close end face respectively is provided with a sealing mechanism 6 between Internal and external cycle.Sealing mechanism is local main in Fig. 1 shown in Figure 2 looks in the section enlarged diagram, and Steel Skeleton ring 7 shape matrix outer peripherys are provided with the locating flange 8 that is stuck on the rib internal surface of outer ring, is provided with the Sealing 9 that is connected as a single entity with O-ring seal between itself and the rib internal surface.The external diameter of above-mentioned locating flange free end portion is greater than the external diameter of flange other parts, and this evagination part is corresponding with the circular orientation groove 10 on the rib internal surface of outer ring.Establish the conical surface 11 at outer ring rib internal surface and end face intersection.Be located at the O-ring seal of making by oil resistant rubber on the Steel Skeleton hollow seal lip 12 is arranged, two end limits on its axial direction are fixed on inward flange 13 periphery walls that link to each other with skeleton matrix inner periphery, should with the sealing lip of inner ring interference fit on be provided with through hole discontinuously, on inward flange, also be provided with the through hole that is connected with the sealing lip chamber in addition discontinuously.By these through holes gas is freed in and out, to adjust the interference fit of hollow seal lip and inner ring, the dynamic seal (packing) that keeps bearing; Lubricant oil between bearing two lassos is flowed out thus, and the relative movement for sealing lip and inner ring provides lubricated, reduces wearing and tearing first, and the 2nd, form oil sealing and increase sealing effect.On the inward flange of both sides inside and outside the above-mentioned hollow seal lip, also be provided with two solid sealing lips 14 arranged side by side of symmetry; should can assist the hollow seal lip to seal with the solid sealing lip of inner ring transition fit; can when assembling, protect the hollow seal lip again simultaneously; space between itself and the hollow seal lip can retain lubricant oil in addition, makes it to form oil sealing.In addition also be provided with movable sealing lip 15 on Steel Skeleton, it be tilting sheet annulus, and its outer shroud peripheral part is fixed on outside the skeleton, and the interior ring peripheral part of flare is the sealing lip with inner ring activity contact matching.Local main the looking in the section enlarged diagram of sealed type separable type roller bearing sealing mechanism shown in Figure 3, Steel Skeleton matrix outer periphery is provided with the locating flange that is stuck on the rib internal surface of outer ring, and its free end is outside bearing.Be provided with the Sealing that is connected as a single entity with O-ring seal between this locating flange and the outer ring rib internal surface.Set O-ring seal on the Steel Skeleton, its structure is identical with Fig. 2.Local main the looking in the section enlarged diagram of sealed type separable type roller bearing sealing mechanism shown in Figure 4, Steel Skeleton matrix outer periphery is provided with locating flange, is provided with independently Sealing between itself and the rib internal surface.The external diameter of locating flange free end portion is greater than the external diameter of other flange portion, and this evagination part is corresponding with the circular orientation groove on the rib internal surface of outer ring.Establish the conical surface at outer ring rib internal surface and end face intersection.Being located at the O-ring seal of being made by oil resistant rubber on the Steel Skeleton has a hollow seal lip, and its structure is identical with the hollow seal procheilon structure of Fig. 2 and Fig. 3.Local main the looking in the section enlarged diagram of sealed type separable type roller bearing sealing mechanism shown in Figure 5, alloy skeleton matrix outer periphery is provided with locating flange, is provided with the Sealing that is connected as a single entity with O-ring seal between itself and the outer ring rib internal surface.The external diameter of locating flange free end portion is greater than the external diameter of other flange portion, and this evagination part is corresponding with the circular orientation groove on the rib internal surface of outer ring.Establish the conical surface at outer ring rib internal surface and end face intersection.On alloy skeleton matrix, be provided with the O-ring seal of making by the oil resistant high-temperature resistant rubber, it has a solid sealing lip 16 with the inner ring transition fit, be provided with the auxiliary seal lip 17 that connects together with it in this solid sealing lip inboard, the outside is provided with the movable sealing lip identical with Fig. 3 structure, and its inner ring with close end face assembles the inclined-plane interference fit.Local main the looking in the section enlarged diagram of sealed type separable type roller bearing sealing mechanism shown in Figure 6, alloy skeleton matrix outer periphery is provided with locating flange, its free end is provided with the Sealing that is connected as a single entity with O-ring seal between this locating flange and the outer ring rib internal surface outside bearing.Be located at the O-ring seal on the alloy skeleton, its structure is identical with Fig. 5, local main the looking in the section enlarged diagram of sealed type separable type roller bearing sealing mechanism shown in Figure 7, Steel Skeleton matrix outer periphery is provided with the locating flange that is stuck in outer ring rib internal surface, its free end outside bearing is provided with perpendicular continuous annulus 18 again, between this annulus and skeleton matrix, be provided with parallel again and three ring dividing plates 19 of certain interval are arranged with matrix, in three gaps of skeleton dividing plate, be provided with three corresponding with it O-ring seals 20, these three O-ring seals independently separately, their sealing lip all with the inner ring interference fit.Local main the looking in the section enlarged diagram of sealed type separable type roller bearing sealing mechanism shown in Figure 8, Steel Skeleton matrix outer periphery is provided with the locating flange that is stuck in outer ring rib internal surface, its free end outside bearing is provided with perpendicular continuous annulus 21 again, O-ring seal 22 between this annulus and skeleton matrix is an one, is positioned at the outer O-ring seal of skeleton and then is divided into three arranged side by side and the sealing lips inner ring interference fit.Local main the looking in the section enlarged diagram of sealed type separable type roller bearing sealing mechanism shown in Figure 9, alloy skeleton matrix outer periphery is provided with locating flange, is provided with the Sealing that is connected as a single entity with O-ring seal between itself and the outer ring rib internal surface.The external diameter of locating flange free end portion is greater than the external diameter of other flange portion, and this evagination part is corresponding with the circular orientation groove on the rib internal surface of outer ring.Establish the conical surface at outer ring rib internal surface and end face intersection.The O-ring seal 23 that the cross section takes the shape of the letter U is established in the skeleton matrix outside, at the bottom of its U-shaped is and the sealing lip of inner ring interference fit, is provided with the spring ring 24 that keeps sealing lip and inner ring interference fit in its U-shaped mouth.Local main the looking in the section enlarged diagram of sealed type separable type roller bearing sealing mechanism shown in Figure 10, skeleton matrix outer periphery is provided with locating flange, and its free end is outside bearing.Be provided with the Sealing that is connected as a single entity with O-ring seal between this locating flange and the outer ring rib internal surface.Set O-ring seal on the Steel Skeleton, its structure is identical with Fig. 9.Local main the looking in the section enlarged diagram of sealed type separable type roller bearing sealing mechanism shown in Figure 11, skeleton matrix outer periphery is provided with locating flange, is provided with the Sealing that is connected as a single entity with O-ring seal between itself and the outer ring rib internal surface.Skeleton is provided with the cross section and is lambdoid solid O-ring seal 25, and it has a sealing lip 26 with the inner ring interference fit, is provided with auxiliary seal lip 27 in sealing lip inboard.Local main the looking in the section enlarged diagram of sealed type separable type roller bearing sealing mechanism shown in Figure 12, skeleton matrix outer periphery is provided with locating flange, and its free end is outside bearing.Be provided with the Sealing that is connected as a single entity with O-ring seal between this locating flange and the outer ring rib internal surface.Skeleton is provided with the cross section and is lambdoid solid seal ring, and it has a sealing lip with the inner ring interference fit, is provided with the sealing lip with the inner ring transition fit in sealing lip inboard.Local main the looking in the section enlarged diagram of sealed type separable type roller bearing sealing mechanism shown in Figure 13, Steel Skeleton annular matrix inner periphery is provided with the locating flange that is stuck on the inner ring rib internal surface, be provided with between itself and the rib internal surface be connected as a single entity with O-ring seal and above the Sealing of 8 road grooves is arranged.The external diameter of above-mentioned locating flange free end portion is less than the external diameter of flange other parts, and this evagination part is corresponding with the circular orientation groove on the inner ring rib internal surface.Establish the conical surface at inner ring rib internal surface and end face intersection.Being located at the O-ring seal of being made by the oil resistant high-temperature resistant rubber on the Steel Skeleton has a hollow seal lip, should with the sealing lip of outer ring interference fit on be provided with through hole discontinuously, on outward flange 28, also be provided with the through hole that is connected with the sealing lip chamber in addition discontinuously.On the outward flange of both sides inside and outside the above-mentioned hollow seal lip, also be provided with two solid sealing lips arranged side by side of symmetry, itself and outer ring transition fit, on Steel Skeleton, also be provided with the movable sealing lip in addition, it is tilting sheet annulus, ring peripheral part is fixed on the skeleton outside in it, and the outer shroud peripheral part of flare is the sealing lip with outer ring activity contact matching.
Claims (10)
1 one kinds of sealed type separable type roller bearings, its skeleton matrix outer periphery is provided with the locating flange that is stuck on the rib internal surface of outer ring, it is characterized in that: the O-ring seal that is provided with on the skeleton has a hollow seal lip, and two end limits on its axial direction are fixed on the inward flange periphery wall that links to each other with skeleton matrix inner periphery.
2 sealed type separable type roller bearings according to claim 1 is characterized in that: should with the sealing lip of inner ring interference fit on be provided with through hole discontinuously, on inward flange, also be provided with the through hole that is connected with hollow seal lip chamber in addition discontinuously.
3 sealed type separable type roller bearings according to claim 1 and 2 is characterized in that: the O-ring seal on the skeleton also includes the solid sealing lip that is located on the inward flange of hollow seal lip side with the inner ring transition fit.
4 sealed type separable type roller bearings according to claim 3, it is characterized in that: the O-ring seal on the skeleton also includes tilting sheet annulus, its outer shroud peripheral part is fixed on the skeleton outside, and the interior ring peripheral part of flare is the sealing lip with inner ring activity contact matching.
5 sealed type separable type roller bearings according to claim 4 is characterized in that: establish the conical surface at outer ring rib internal surface and end face intersection.
6 one kinds of sealed type separable type roller bearings, its skeleton matrix outer periphery is provided with the locating flange that is stuck on the inner ring rib outer surface, it is characterized in that: the O-ring seal that is located on the skeleton has a hollow seal lip, and two end limits on its axial direction are fixed on the outward flange periphery wall that links to each other with skeleton matrix outer periphery.
7 sealed type separable type roller bearings according to claim 6 is characterized in that: should with the sealing lip of outer ring interference fit on be provided with through hole discontinuously, on outward flange, also be provided with the through hole that is connected with hollow seal lip chamber in addition discontinuously.
8 according to claim 6 or 7 described sealed type separable type roller bearings, it is characterized in that: the O-ring seal on the skeleton also includes the solid sealing lip that is located on the outward flange of hollow seal lip side with the outer ring transition fit.
9 sealed type separable type roller bearings according to claim 8, it is characterized in that: the O-ring seal on the skeleton also includes tilting sheet annulus, ring peripheral part is fixed on the skeleton outside in it, and the outer shroud peripheral part of flare is the sealing lip with outer ring activity contact matching.
10 sealed type separable type roller bearings according to claim 9 is characterized in that: establish the conical surface at inner ring rib internal surface and end face intersection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100209085A CN1327143C (en) | 2004-07-04 | 2004-07-04 | Sealed separable cylindrical roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100209085A CN1327143C (en) | 2004-07-04 | 2004-07-04 | Sealed separable cylindrical roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1594902A CN1594902A (en) | 2005-03-16 |
| CN1327143C true CN1327143C (en) | 2007-07-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100209085A Active CN1327143C (en) | 2004-07-04 | 2004-07-04 | Sealed separable cylindrical roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1327143C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8561996B2 (en) | 2009-05-25 | 2013-10-22 | Aktiebolaget Skf | Bearing assembly, particularly for use in agricultural applications |
| CN105299057A (en) * | 2014-05-26 | 2016-02-03 | 曹立新 | Dustproof and waterproof bearing |
| CN109296647A (en) * | 2018-09-27 | 2019-02-01 | 中浙高铁轴承有限公司 | A kind of deep groove ball bearing seal assembly |
| CN110043570A (en) * | 2019-04-19 | 2019-07-23 | 万向钱潮股份有限公司 | It is a kind of to be vented and the long-life universal joint without oil leak |
| CN111503138B (en) * | 2020-06-05 | 2022-07-15 | 浙江宏利汽配集团有限公司 | Bidirectional sealed suspension bearing assembly |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4421326A (en) * | 1982-09-29 | 1983-12-20 | Drygalski Gordon T | Oil seals with mounting surface vent mechanisms |
| CN85108036A (en) * | 1985-05-06 | 1986-11-05 | 托林顿公司 | Multirow roller bearing |
| DE3831134A1 (en) * | 1987-10-12 | 1989-04-20 | Skf Gmbh | Arrangement for sealing off bearings, especially rolling bearings |
| JP2003120824A (en) * | 2001-07-23 | 2003-04-23 | Nsk Ltd | Seal |
| CN2573757Y (en) * | 2002-09-09 | 2003-09-17 | 上海天安轴承有限公司 | Three-lip waterproof sealed bearing |
| JP2003297821A (en) * | 2002-04-05 | 2003-10-17 | Asm Japan Kk | Siloxane polymer film on semiconductor substrate and method of manufacturing the same |
| CN2711447Y (en) * | 2004-07-04 | 2005-07-20 | 瓦房店冶金轴承集团有限公司 | Sealed separable cylindrical roller bearing |
-
2004
- 2004-07-04 CN CNB2004100209085A patent/CN1327143C/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4421326A (en) * | 1982-09-29 | 1983-12-20 | Drygalski Gordon T | Oil seals with mounting surface vent mechanisms |
| CN85108036A (en) * | 1985-05-06 | 1986-11-05 | 托林顿公司 | Multirow roller bearing |
| DE3831134A1 (en) * | 1987-10-12 | 1989-04-20 | Skf Gmbh | Arrangement for sealing off bearings, especially rolling bearings |
| JP2003120824A (en) * | 2001-07-23 | 2003-04-23 | Nsk Ltd | Seal |
| JP2003297821A (en) * | 2002-04-05 | 2003-10-17 | Asm Japan Kk | Siloxane polymer film on semiconductor substrate and method of manufacturing the same |
| CN2573757Y (en) * | 2002-09-09 | 2003-09-17 | 上海天安轴承有限公司 | Three-lip waterproof sealed bearing |
| CN2711447Y (en) * | 2004-07-04 | 2005-07-20 | 瓦房店冶金轴承集团有限公司 | Sealed separable cylindrical roller bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1594902A (en) | 2005-03-16 |
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Denomination of invention: Sealed separable cylindrical roller bearing Effective date of registration: 20220727 Granted publication date: 20070718 Pledgee: China Minsheng Bank Co.,Ltd. Dalian Branch Pledgor: WAFANGDIAN METALLURGICAL BEARING GROUP Co.,Ltd. Registration number: Y2022980011377 |
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Granted publication date: 20070718 Pledgee: China Minsheng Bank Co.,Ltd. Dalian Branch Pledgor: WAFANGDIAN METALLURGICAL BEARING GROUP Co.,Ltd. Registration number: Y2022980011377 |