US20040080116A1 - Sealing device for roll bearings with compensation for radial offset - Google Patents
Sealing device for roll bearings with compensation for radial offset Download PDFInfo
- Publication number
- US20040080116A1 US20040080116A1 US10/471,648 US47164803A US2004080116A1 US 20040080116 A1 US20040080116 A1 US 20040080116A1 US 47164803 A US47164803 A US 47164803A US 2004080116 A1 US2004080116 A1 US 2004080116A1
- Authority
- US
- United States
- Prior art keywords
- seal
- elastic support
- assembly according
- roll
- support element
- 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.)
- Abandoned
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 14
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 239000004809 Teflon Substances 0.000 claims description 2
- 229920006362 Teflon® Polymers 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/07—Adaptation of roll neck bearings
- B21B31/078—Sealing devices
-
- 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
- F16C33/72—Sealings
- F16C33/74—Sealings of sliding-contact bearings
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3224—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip capable of accommodating changes in distances or misalignment between the surfaces, e.g. able to compensate for defaults of eccentricity or angular deviations
-
- 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
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/12—Rolling apparatus, e.g. rolling stands, rolls
Definitions
- the invention relates to a seal assembly for sealing the roll side of a roll bearing wherein at least one elastic seal element on the roll stub rides on an annular seal surface, the seal element and seal surface being mounted on respective supports one of which is stationary and the other of which is movable with the roll stub.
- seal assemblies have long been used in oil-film bearings.
- seal elements are used which on the one hand prevent oil from getting from the oil-film bearing to the roll body and on the other hand prevent particle-carrying coolant and lubricant from getting from the roll body into the oil-film bearing.
- the roll stub can get radially offset in its mount.
- the seal space between the roll-stub sleeve and the bearing sleeve is less in a lower region, whereas the gap is greater in the opposite upper region. If the roll is working and pressure is being exerted from the mount through the bearing to the roll, the bearing gap between the roll-stub sleeve and the bearing sleeve is greater in the lower region whereas in the opposite upper region it decreases. This radial offset created by different loads must be compensated out by the seal elements.
- the invention attains this object in that the seal element and/or the seal surface are supported by at least one elastic support element on the holder, the elastic support element being less stiff than the seal lips of the seal element.
- the seal lip of the seal element is not changed in shape in a smaller seal gap, but as a result of its greater stiffness the forces are applied to the elastic support element carrying the seal element, which is compressed in this region of the seal gap.
- the elastic support element can expand in the larger seal gap so that here also the seal lip sits without substantial movement in an optimal manner on the seal surface.
- the seal element and/or the seal surface is retained in its holder between at least one clamp body and if necessary an abutment, the clamping permitting a radial movement of the seal elements and/or of the seal surface, angular movement of the seal element being prevented.
- a stationary seal element is not entrained by friction with the seal surface while being able to follow radial movement.
- the elastic support element can be an O-ring or closed-end tube that e.g. is filled with an elastomer so as to ensure an optimal equalization of radial offset.
- the clamp body and if necessary the extension and/or the surface of the seal element and/or the seal surface that engage the abutment and if necessary the abutment are coated with Teflon. This makes possible radial movement of the seal element or of the seal surface in its holder.
- FIG. 1 is a view of a roll with an oil-film bearing
- FIG. 2 is a detail of the seal.
- FIG. 1 shows a roll 1 having a roll stub 2 .
- the roll stub 2 is supported as shown in FIG. 2 by a roll-stub sleeve 3 in a bearing sleeve 4 which in turn is carried by a mount 5 .
- the roll-stub sleeve 3 carries a roll-stub sleeve extension 6 having a seal surface 7 .
- the mount carries a holder 8 that in turn carries seal elements 9 and 10 .
- the seal elements 9 and 10 themselves are pressed by a clamping body 11 against an abutment 12 such that the seal elements 9 and 10 can move radially but not angularly in the holder 8 .
- Between the holder 8 and the seal elements 9 and 10 is an elastic support element 13 .
- the elastic support element 13 is formed as a closed tube filled with an elastomer.
- the seal elements 9 and 10 compensate out this radial offset. Since the elastic element 13 is not as stiff as the lips 14 and 15 of the seal element 9 and 10 , the elastic support element 13 can take up the radial offset without substantial bending of the seal lips 14 and 15 . This ensures that the seal lips 14 and 15 are always seated on the seal surface 7 for optimal sealing. In addition with this positioning of the lips 14 and 15 there is minimal wear.
- the illustrated embodiment shows only that the seal elements 9 and 10 are supported by the elastic support element 13 . It is also within the scope of the invention that such an elastic support element be provided between the seal surface 7 and the roll-stub extension 6 , or that both the seal element and the seal surface are supported by respective elastic support elements.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
- Sealing Devices (AREA)
Abstract
Description
- The invention relates to a seal assembly for sealing the roll side of a roll bearing wherein at least one elastic seal element on the roll stub rides on an annular seal surface, the seal element and seal surface being mounted on respective supports one of which is stationary and the other of which is movable with the roll stub.
- Such seal assemblies have long been used in oil-film bearings. As a rule expensive seal elements are used which on the one hand prevent oil from getting from the oil-film bearing to the roll body and on the other hand prevent particle-carrying coolant and lubricant from getting from the roll body into the oil-film bearing.
- As a result of the various loads encountered during rolling, the roll stub can get radially offset in its mount. In unloaded nonworking rolls the seal space between the roll-stub sleeve and the bearing sleeve is less in a lower region, whereas the gap is greater in the opposite upper region. If the roll is working and pressure is being exerted from the mount through the bearing to the roll, the bearing gap between the roll-stub sleeve and the bearing sleeve is greater in the lower region whereas in the opposite upper region it decreases. This radial offset created by different loads must be compensated out by the seal elements.
- As a result when the roll is not under load the seal lips in the lower region of the seal element are pushed together, while the seal lips in the upper region barely touch the seal surface. When the roll is working the seal lips are on the contrary pushed together a great deal in the upper region of the seal element and in the lower region barely touch the seal surface.
- This radial play therefore creates a considerable load and as a result wear of the seal on the one hand from being squeezed together and on the other hand from the constant load change and furthermore the danger that the sealing effectiveness is not optimal with respect to the seal surface engaged by the seal lips.
- It is an object of the invention to provide such a seal assembly that in spite of radial offset of the roll-stub sleeve in the bearing sleeve the seal lips of the seal element always optimally engage the seal surface without over stressing the seal elements and while reducing wear of the seal elements and increasing their service lives.
- The invention attains this object in that the seal element and/or the seal surface are supported by at least one elastic support element on the holder, the elastic support element being less stiff than the seal lips of the seal element. In this system, when there is a radial offset, the seal lip of the seal element is not changed in shape in a smaller seal gap, but as a result of its greater stiffness the forces are applied to the elastic support element carrying the seal element, which is compressed in this region of the seal gap. On the opposite side, the elastic support element can expand in the larger seal gap so that here also the seal lip sits without substantial movement in an optimal manner on the seal surface.
- It has been found advantageous when the stiffness of the elastic support element and/or the extent of radial compensation movement of the elastic support element are presettable. In this manner on the one hand seal elements of different stiffness can be accommodated while on the other hand the elastic support element changes shape to accommodate the expected radial offset.
- It is preferable when the seal element and/or the seal surface is retained in its holder between at least one clamp body and if necessary an abutment, the clamping permitting a radial movement of the seal elements and/or of the seal surface, angular movement of the seal element being prevented. In this manner, for example a stationary seal element is not entrained by friction with the seal surface while being able to follow radial movement.
- The elastic support element can be an O-ring or closed-end tube that e.g. is filled with an elastomer so as to ensure an optimal equalization of radial offset.
- It is simpler to make and replace the seal element and the elastic support element when the elastic support element is integrated in the seal element, forming with it one part or piece.
- It is preferable when the clamp body and if necessary the extension and/or the surface of the seal element and/or the seal surface that engage the abutment and if necessary the abutment are coated with Teflon. This makes possible radial movement of the seal element or of the seal surface in its holder.
- To prevent the seal element and/or the seal surface from moving angularly in addition to radially, it is recommended that at least the clamp body and the surface of the seal element and/or the seal surface that engages the clamp body, have a radially extending toothing or guides that engage each other without substantial friction.
- The invention is described more closely with reference to a drawing.
- Therein:
- FIG. 1 is a view of a roll with an oil-film bearing and
- FIG. 2 is a detail of the seal.
- FIG. 1 shows a
roll 1 having aroll stub 2. Theroll stub 2 is supported as shown in FIG. 2 by a roll-stub sleeve 3 in a bearing sleeve 4 which in turn is carried by amount 5. The roll-stub sleeve 3 carries a roll-stub sleeve extension 6 having a seal surface 7. The mount carries aholder 8 that in turn carriesseal elements seal elements clamping body 11 against anabutment 12 such that theseal elements holder 8. Between theholder 8 and theseal elements elastic support element 13. Theelastic support element 13 is formed as a closed tube filled with an elastomer. - If there is any radial offset between the
roll stub 2 and the roll-stub sleeve 3 on one side and the bearing sleeve 4 and themount 5 on the other, theseal elements elastic element 13 is not as stiff as thelips seal element elastic support element 13 can take up the radial offset without substantial bending of theseal lips seal lips lips - The illustrated embodiment shows only that the
seal elements elastic support element 13. It is also within the scope of the invention that such an elastic support element be provided between the seal surface 7 and the roll-stub extension 6, or that both the seal element and the seal surface are supported by respective elastic support elements. -
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Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/418,344 US7396021B2 (en) | 2001-03-21 | 2006-05-04 | Sealing device for roll bearings with compensation for rad |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10113869.5 | 2001-03-21 | ||
DE10113869A DE10113869A1 (en) | 2001-03-21 | 2001-03-21 | Sealing system for bearing for roller comprises sealing rings which fit against surface on roller shaft, rings and surface being mounted on supports which are less rigid than sealing lips on rings |
PCT/EP2002/002119 WO2002076645A1 (en) | 2001-03-21 | 2002-02-28 | Sealing device for roll bearings with compensation for radial offset |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/418,344 Division US7396021B2 (en) | 2001-03-21 | 2006-05-04 | Sealing device for roll bearings with compensation for rad |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040080116A1 true US20040080116A1 (en) | 2004-04-29 |
Family
ID=7678455
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/471,648 Abandoned US20040080116A1 (en) | 2001-03-21 | 2002-02-28 | Sealing device for roll bearings with compensation for radial offset |
US11/418,344 Expired - Fee Related US7396021B2 (en) | 2001-03-21 | 2006-05-04 | Sealing device for roll bearings with compensation for rad |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/418,344 Expired - Fee Related US7396021B2 (en) | 2001-03-21 | 2006-05-04 | Sealing device for roll bearings with compensation for rad |
Country Status (13)
Country | Link |
---|---|
US (2) | US20040080116A1 (en) |
EP (1) | EP1370376B1 (en) |
JP (1) | JP4537001B2 (en) |
KR (1) | KR20030082999A (en) |
CN (1) | CN1280034C (en) |
AT (1) | ATE303211T1 (en) |
BR (1) | BR0207711A (en) |
CZ (1) | CZ20032542A3 (en) |
DE (2) | DE10113869A1 (en) |
ES (1) | ES2247306T3 (en) |
RU (1) | RU2282510C2 (en) |
WO (1) | WO2002076645A1 (en) |
ZA (1) | ZA200306362B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090256316A1 (en) * | 2005-11-04 | 2009-10-15 | Nok Corporation | Sealing Device |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI0418347A (en) * | 2004-01-03 | 2007-05-02 | Sms Demag Ag | cylinder bearing sealing device |
DE102004003699A1 (en) * | 2004-01-03 | 2005-08-18 | Sms Demag Ag | - Sealing device for cylinder bearings, especially oil film or roller bearings useful in rolling operations for sealing oil film cylinder bearings |
DE102005022440A1 (en) * | 2005-05-14 | 2006-11-16 | Sms Demag Ag | Mounting for roller in rolling mill with axially sprung thrust locking profiles to lock the roller drive when the roller is removed |
CN100341635C (en) * | 2005-09-30 | 2007-10-10 | 太原重型机械集团有限公司 | Sealer with assembled filmatic bearing of press |
US8865337B2 (en) * | 2008-03-24 | 2014-10-21 | Lightening Energy | Modular battery, an interconnector for such batteries and methods related to modular batteries |
DE102008038997A1 (en) | 2008-08-08 | 2010-02-18 | Sms Siemag Aktiengesellschaft | Sealing element for sealing a roller bearing, roller bearings and method for mounting the sealing element |
US20110278801A1 (en) * | 2010-05-11 | 2011-11-17 | Morgan Construction Company | Neck seal |
RU2456106C1 (en) * | 2011-02-25 | 2012-07-20 | Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения имени академика Целикова" (ОАО АХК "ВНИИМЕТМАШ") | Sealing device of turning roller bearing |
CN105526365B (en) * | 2015-12-25 | 2017-12-12 | 中车戚墅堰机车车辆工艺研究所有限公司 | Rotary seal structure |
CN108607882B (en) * | 2016-12-12 | 2019-12-17 | 上海梅山钢铁股份有限公司 | Control device and control method for preventing rolling liquid from entering rolling bearing of UC rolling mill |
CN106907485B (en) * | 2017-04-28 | 2018-11-09 | 嘉兴学院 | A kind of pressure adaptive lip shape seal device |
CN108727918A (en) * | 2018-06-15 | 2018-11-02 | 齐耐润工业设备(上海)有限公司 | Corrosion-resistant finishes, the sealing element and its manufacturing method for being coated with the coating |
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US2181203A (en) * | 1938-04-18 | 1939-11-28 | Otto Bartling | Grease retainer |
US3427776A (en) * | 1966-06-14 | 1969-02-18 | Tremco Mfg Co | Self-adherent,shock absorbing,sealing and spacing strip |
US3847453A (en) * | 1972-01-13 | 1974-11-12 | C Herbert | Shaft arrangements |
US3866924A (en) * | 1973-08-16 | 1975-02-18 | United States Steel Corp | Wiper and diaphragm seal device |
US3980309A (en) * | 1973-12-19 | 1976-09-14 | Jacques Dechavanne | Two-part scraper-type shaft-seal |
US4063743A (en) * | 1976-06-14 | 1977-12-20 | Mesta Machine Company | Sealing arrangement for a rotatable member |
US4202555A (en) * | 1978-02-18 | 1980-05-13 | Firma Carl Freudenberg | Sealing ring |
US4289321A (en) * | 1979-02-27 | 1981-09-15 | Garlock Inc | Pressure shaft seal and method |
US4435096A (en) * | 1981-09-11 | 1984-03-06 | Mesta Machine Company | Sealing arrangement for a rotatable member |
US4898479A (en) * | 1987-03-30 | 1990-02-06 | Morgan Construction Company | Roll neck bearing assembly and inner bearing component therefor |
US5137285A (en) * | 1986-03-24 | 1992-08-11 | Zahnradfabrik Friedrichshafen Ag | Sealing system for mutually rotating machine parts |
US5439233A (en) * | 1983-09-09 | 1995-08-08 | Westinghouse Electric Corporation | Large annular segmented seal with lock portions for missile launch tube |
US5476268A (en) * | 1990-03-15 | 1995-12-19 | Unicraft Oy | Seal assembly with a hard seal layer actuated through a silicone layer |
US6328312B1 (en) * | 1999-03-26 | 2001-12-11 | Interseal Dipl. -Ing. Rolf Schmitz Gmbh | Shaft seal assembly |
Family Cites Families (7)
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US2050137A (en) * | 1933-12-23 | 1936-08-04 | United Superior Union Company | Plumber's union and method of manufacture thereof |
BE636600A (en) * | 1957-10-14 | |||
FR1457312A (en) * | 1965-05-14 | 1966-01-24 | Elastic coupling with high damping capacity and devices including application | |
FR2254241A5 (en) * | 1973-12-05 | 1975-07-04 | Leduc & Fils Rene | Seal for rotating and laterally vibrating shafts - additional flexible seal surrounds needle roller outer race |
US4790673A (en) * | 1987-03-30 | 1988-12-13 | Morgan Construction Company | Rock neck bearing assembly and inner bearing component therefor |
US5145219A (en) * | 1990-08-01 | 1992-09-08 | Cajon Company | Tube coupling with gasket retainer |
US6623047B2 (en) * | 1997-06-16 | 2003-09-23 | Swagelok Company | Tube coupling |
-
2001
- 2001-03-21 DE DE10113869A patent/DE10113869A1/en not_active Withdrawn
-
2002
- 2002-02-28 KR KR10-2003-7012234A patent/KR20030082999A/en not_active Application Discontinuation
- 2002-02-28 JP JP2002575149A patent/JP4537001B2/en not_active Expired - Fee Related
- 2002-02-28 CN CNB028068831A patent/CN1280034C/en not_active Expired - Fee Related
- 2002-02-28 US US10/471,648 patent/US20040080116A1/en not_active Abandoned
- 2002-02-28 AT AT02712930T patent/ATE303211T1/en active
- 2002-02-28 DE DE50204086T patent/DE50204086D1/en not_active Expired - Lifetime
- 2002-02-28 CZ CZ20032542A patent/CZ20032542A3/en unknown
- 2002-02-28 WO PCT/EP2002/002119 patent/WO2002076645A1/en not_active Application Discontinuation
- 2002-02-28 EP EP02712930A patent/EP1370376B1/en not_active Expired - Lifetime
- 2002-02-28 BR BR0207711-6A patent/BR0207711A/en not_active IP Right Cessation
- 2002-02-28 ES ES02712930T patent/ES2247306T3/en not_active Expired - Lifetime
- 2002-02-28 RU RU2003130975/02A patent/RU2282510C2/en not_active IP Right Cessation
-
2003
- 2003-08-15 ZA ZA200306362A patent/ZA200306362B/en unknown
-
2006
- 2006-05-04 US US11/418,344 patent/US7396021B2/en not_active Expired - Fee Related
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2181203A (en) * | 1938-04-18 | 1939-11-28 | Otto Bartling | Grease retainer |
US3427776A (en) * | 1966-06-14 | 1969-02-18 | Tremco Mfg Co | Self-adherent,shock absorbing,sealing and spacing strip |
US3847453A (en) * | 1972-01-13 | 1974-11-12 | C Herbert | Shaft arrangements |
US3866924A (en) * | 1973-08-16 | 1975-02-18 | United States Steel Corp | Wiper and diaphragm seal device |
US3980309A (en) * | 1973-12-19 | 1976-09-14 | Jacques Dechavanne | Two-part scraper-type shaft-seal |
US4063743A (en) * | 1976-06-14 | 1977-12-20 | Mesta Machine Company | Sealing arrangement for a rotatable member |
US4202555A (en) * | 1978-02-18 | 1980-05-13 | Firma Carl Freudenberg | Sealing ring |
US4289321A (en) * | 1979-02-27 | 1981-09-15 | Garlock Inc | Pressure shaft seal and method |
US4435096A (en) * | 1981-09-11 | 1984-03-06 | Mesta Machine Company | Sealing arrangement for a rotatable member |
US5439233A (en) * | 1983-09-09 | 1995-08-08 | Westinghouse Electric Corporation | Large annular segmented seal with lock portions for missile launch tube |
US5137285A (en) * | 1986-03-24 | 1992-08-11 | Zahnradfabrik Friedrichshafen Ag | Sealing system for mutually rotating machine parts |
US4898479A (en) * | 1987-03-30 | 1990-02-06 | Morgan Construction Company | Roll neck bearing assembly and inner bearing component therefor |
US5476268A (en) * | 1990-03-15 | 1995-12-19 | Unicraft Oy | Seal assembly with a hard seal layer actuated through a silicone layer |
US6328312B1 (en) * | 1999-03-26 | 2001-12-11 | Interseal Dipl. -Ing. Rolf Schmitz Gmbh | Shaft seal assembly |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090256316A1 (en) * | 2005-11-04 | 2009-10-15 | Nok Corporation | Sealing Device |
Also Published As
Publication number | Publication date |
---|---|
RU2003130975A (en) | 2005-02-10 |
EP1370376B1 (en) | 2005-08-31 |
US7396021B2 (en) | 2008-07-08 |
ES2247306T3 (en) | 2006-03-01 |
ZA200306362B (en) | 2003-12-08 |
DE50204086D1 (en) | 2005-10-06 |
BR0207711A (en) | 2004-03-23 |
DE10113869A1 (en) | 2002-09-26 |
WO2002076645A1 (en) | 2002-10-03 |
CN1498139A (en) | 2004-05-19 |
CN1280034C (en) | 2006-10-18 |
EP1370376A1 (en) | 2003-12-17 |
RU2282510C2 (en) | 2006-08-27 |
ATE303211T1 (en) | 2005-09-15 |
KR20030082999A (en) | 2003-10-23 |
JP2004533931A (en) | 2004-11-11 |
CZ20032542A3 (en) | 2004-02-18 |
US20060202429A1 (en) | 2006-09-14 |
JP4537001B2 (en) | 2010-09-01 |
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