DE1075383B - Roller bearing seal, especially for needle roller bearings - Google Patents
Roller bearing seal, especially for needle roller bearingsInfo
- Publication number
- DE1075383B DE1075383B DENDAT1075383D DE1075383DA DE1075383B DE 1075383 B DE1075383 B DE 1075383B DE NDAT1075383 D DENDAT1075383 D DE NDAT1075383D DE 1075383D A DE1075383D A DE 1075383DA DE 1075383 B DE1075383 B DE 1075383B
- Authority
- DE
- Germany
- Prior art keywords
- sealing ring
- bearing seal
- bearing
- rubber sealing
- seal
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000004519 grease Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
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
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7809—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for needle roller 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
- 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
- F16C19/44—Needle bearings
- F16C19/46—Needle bearings with one row or needles
-
- 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
- F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
- F16C33/605—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings with a separate retaining member, e.g. flange, shoulder, guide ring, secured to a race ring, adjacent to the race surface, so as to abut the end of the rolling elements, e.g. rollers, or the cage
-
- 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
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
- F16C33/7853—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Description
Wälzlagerabdichtung, insbesondere für Nadellager Gegenstand der Erfindung ist eine aus einem Gummidichtring und einem metallischen Fassungsring bestehende Staub- und Fettabdichtung zum Einbau in Wälzlager, insbesondere in Nadellager, der gleichzeitig die Aufgabe zufällt, dem die Wälzkörper führenden Lagerkäfig als Axialanlaufscheibe zu dienen.Rolling bearing seal, in particular for needle bearings, the subject of the invention is one consisting of a rubber sealing ring and a metallic mounting ring Dust and grease seal for installation in roller bearings, especially in needle bearings, the at the same time the task falls to the bearing cage guiding the rolling elements as an axial thrust washer to serve.
Es sind Wälzlagerabdichtungen bekannt, die aus einem Gummidichtring mit metallischer Armierung bestehen und die den Raum zwischen dem äußeren und dem inneren Lagerlaufring beidseitig fett- und staubdicht abschließen. Bei einer bekannten Ausführung ist die Metallarmierung als Scheibe oder flache Kappe ausgebildet, die an der Innenseite des sie umgreifenden Gummidichtringes anliegt bzw. in diese eingebettet ist. Der zugehörige Lageraußenring ist an seiner Innenfläche mit einer Rille versehen, in die der Gummidichtring mit seinem äußeren, im Querschnitt halbkreisförmigen Wulstrand eingreift. Derartige-Lagerabdichtungen können verhältnismäßig leicht aus dem Lager entfernt und wieder eingesetzt werden, da der Gummiwulstrand bei einem in axialer Richtung auf die Dichtung ausgeübten Druck oder Zug nachgibt. Sie können aus diesem Grunde auch nicht zur axialen Lagesicherung für den Wälzkörperkäfig herangezogen werden.There are roller bearing seals known, which consist of a rubber sealing ring with metallic reinforcement and that the space between the outer and the Seal the inner bearing race on both sides so that it is grease- and dust-tight. With a well-known Execution, the metal reinforcement is designed as a disc or flat cap, which on the inside of the rubber sealing ring encompassing it or embedded in it is. The corresponding bearing outer ring is provided with a groove on its inner surface, in which the rubber sealing ring with its outer, semicircular cross-section beaded edge intervenes. Such bearing seals can be removed from the bearing relatively easily removed and reinserted, as the rubber bead is in an axial Direction of the pressure or tension exerted on the seal yields. You can get out of this Basically also not used to secure the axial position of the rolling element cage will.
In den meisten Fällen ist bei einem abgedichteten Lager die herstellerseitig eingebrachte Fettmenge für die Gesamtlebensdauer des Lagers ausreichend. Es ist deshalb gar nicht erforderlich und auch nicht erwünscht, daß die Lagerabdichtung leicht entfernt und wieder eingesetzt werden kann, weil hierdurch die Gefahr besteht, daß Fremdkörper in das Lager gelangen oder daß ein ungeeignetes Fett nachgefüllt wird.In most cases, if the bearing is sealed, this is provided by the manufacturer The amount of grease introduced is sufficient for the entire service life of the bearing. It is therefore not at all necessary and also not desirable that the bearing seal can be easily removed and reinserted because this creates the risk of that foreign bodies get into the bearing or that unsuitable grease has been topped up will.
Bei einer bekannten, fest eingebauten Wälzlagerdichtung werden zur Halterung des Gummidichtringes durchgewölbte Tellerscheiben verwandt, die nach dem Einführen in die Ringnut des Lagerlaufringes flachgedrückt werden und dadurch ihren äußeren Durchmesser vergrößern. Die Tellerscheiben dürfen nicht gehärtet sein, weil sonst die Gefahr besteht, daß sie wieder in ihre Ursprungslage zurückfedern. Diese Wälzlagerdichtung kann infolgedessen ebenfalls nicht zur Axialsicherung für die Wälzkörper bzw. deren Käfig herangezogen werden.In a known, permanently installed roller bearing seal are used for Bracket of the rubber sealing ring domed plate washers used, which after the Insertion into the annular groove of the bearing race are flattened and thereby their Increase the outer diameter. The plate washers must not be hardened because otherwise there is a risk that they will spring back to their original position. These As a result, roller bearing seal can also not be used for axial securing for the Rolling bodies or their cage are used.
Eine andere bekannte Wälzlagerabdichtung weist eine gewölbte Tellerscheibe auf, deren nach außen konisch erweiterter Rand in eine Ringnut des Laufringes einfedert, wobei sich die Randkante an der durch die Ringnut ausgebildete Schulter abstützt. Die Tellerscheibe kann mit oder ohne Gummidichtung zum Einbau gelangen. Da der Rand der Tellerscheibe nicht durch Schlitze oder Ausnehmungen unterbrochen ist, eignet sich die Abdichtung nur für den Einbau in Wälzlager mit größerem Wälzkörperdurchmesser, besonders für Kugel- oder Zylinderrollenlager, da andernfalls die Höhe des Dichtflansches für die federnde Durchwölbung beim Einfedern der Tellerscheibe nicht ausreicht. Die Tellerscheibe muß überdies gewölbt ausgebildet sein, damit sie sich beim Einsetzen in den Laufring im Durchmesser federnd verkleinern kann. Als Anlaufschulter zur Lagesicherung des Wälzkörperkäfigs ist diese Abdichtung gleichfalls nicht geeignet.Another known roller bearing seal has a domed cup washer whose outwardly conically widened edge springs into an annular groove of the raceway, wherein the edge is supported on the shoulder formed by the annular groove. The cup washer can be installed with or without a rubber seal. Because the edge the plate washer is not interrupted by slots or recesses, is suitable the seal is only suitable for installation in rolling bearings with a larger rolling element diameter, especially for ball or cylindrical roller bearings, otherwise the height of the sealing flange is not sufficient for the resilient arching when the plate washer is compressed. The plate washer must also be curved so that it is when inserted can resiliently reduce in diameter in the race. As a starting shoulder for This seal is likewise not suitable for securing the position of the rolling element cage.
Eine in den Laufring eines Wälzlagers einsetzbare, aus einem Gummidichtring und einem metallischen, den Gummidichtring zweiseitig umfassenden Fassungsring bestehende Abdichtung, die sich besonders für Nadellager eignet und die gleichzeitig die Anlaufschulter zur axialen Lagesicherung des Käfigs bildet, ist gemäß der Erfindung dadurch gekennzeichnet, daß der Fassungsring einen dem Wälzkörperkäfig zugewandten, als Anlaufschulter für den Käfig dienenden ebenen Flansch und einen in bekannter Weise nach außen konisch erweiterten geschlitzten oder unterbrochenen Stützflansch aufweist, der beim Einbau der Dichtung in an sich bekannter Weise in eine Ringnut des Laufringes einfedert und sich mit seiner Randkante an der durch die Ringnut gebildeten Schulter abstützt.One made of a rubber sealing ring that can be inserted into the race of a roller bearing and a metallic mounting ring that surrounds the rubber sealing ring on both sides Sealing that is particularly suitable for needle roller bearings and that also serves as the start-up shoulder forms to secure the axial position of the cage, is characterized according to the invention, that the mounting ring facing the roller cage, as a starting shoulder for the cage serving flat flange and a conical outwardly in a known manner has extended slotted or interrupted support flange during installation the seal springs into an annular groove of the race in a manner known per se and is supported with its peripheral edge on the shoulder formed by the annular groove.
Die Zeichnung veranschaulicht den Erfindungsgegenstand an Hand von Ausführungsbeispielen. Fig. 1 zeigt ein Nadellager, bestehend aus einem äußeren Laufring 1, einem inneren Laufring 2, einem Nadelkäfig 3 mit den Lagernadeln 4 und den beiden Lagerabdichtungen 5; Fig. 2 zeigt ein Teilstück der Lagerabdichtung in stark vergrößertem Maßstab, Fig. 3 einen Schnitt durch die Lagerabdichtung nach der Linie A-B in Fig. 2, Fig. 4 und 4' einen Schnitt nach der Linie C-D in Fig. 2, Fig. 5 die eingesetzte Lagerabdichtung im Schnitt gemäß Fig. 4 und Fig. 6 die eingesetzte Lagerabdichtung im Schnitt gemäß Fig.5.The drawing illustrates the subject matter of the invention on the basis of Embodiments. Fig. 1 shows a needle bearing consisting of an outer one Race 1, an inner race 2, a Needle cage 3 with the Bearing needles 4 and the two bearing seals 5; Fig. 2 shows a portion of the Bearing seal on a greatly enlarged scale, FIG. 3 shows a section through the bearing seal along the line A-B in Fig. 2, Fig. 4 and 4 'a section along the line C-D in FIG. 2, FIG. 5 shows the bearing seal used in section according to FIG. 4 and FIG. 6 shows the bearing seal used in section according to FIG.
Wie aus den Zeichnungen ersichtlich ist, besteht die Lagerabdichtung 5 aus einem Gummidichtring 6 und einem metallischen Fassungsring 7. Der Gummidichtring besitzt eine keilförmige Ringnut 8, durch die eine weiche Ringlippe 9 entsteht. Der nach außen konisch erweiterte Flansch 10 des Fassungsringes 7 umschließt den Dichtring 6 und ist so ausgespart, daß nur einige über den Umfang verteilte Stücke stehenbleiben, die eingebettet in dem Dichtring 6 liegen.As can be seen from the drawings, the bearing seal 5 consists of a rubber sealing ring 6 and a metallic mounting ring 7. The rubber sealing ring has a wedge-shaped annular groove 8 through which a soft annular lip 9 is created. The outwardly flared flange 10 of the mounting ring 7 surrounds the sealing ring 6 and is recessed in such a way that only a few pieces, which are distributed over the circumference and are embedded in the sealing ring 6, remain.
Aus den Fig. 4' und 5 geht hervor, daß sich beim Einbau der Lagerdichtung der Schrägungswinkel a des Flansches 10 verkleinert, d. h., der Flansch steht innerhalb der im Lageraußenring 1 vorgesehenen Ringnut 11 unter Vorspannung, wobei sein Rand hinter die äußere Schulter 11' der Ringnut 11 greift.From Figs. 4 'and 5 it can be seen that when installing the bearing seal the helix angle α of the flange 10 is reduced, d. i.e., the flange is inside provided in the bearing outer ring 1 annular groove 11 under preload, with its edge behind the outer shoulder 11 'of the annular groove 11 engages.
Bei dem als Ausführungsbeispiel gezeigten Nadellager dienen die Lagerabdichtungen 5 zugleich zur axialen Lagesicherung des Nadelkäfigs 3, der an dem Scheibenflansch 7' des Fassungsringes 7 anläuft.In the needle bearing shown as an exemplary embodiment, the bearing seals are used 5 at the same time to secure the axial position of the needle cage 3, which is attached to the disk flange 7 'of the mounting ring 7 starts up.
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1075383B true DE1075383B (en) | 1960-02-11 |
Family
ID=599220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1075383D Pending DE1075383B (en) | Roller bearing seal, especially for needle roller bearings |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1075383B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2343939A1 (en) * | 1976-03-13 | 1977-10-07 | Freudenberg Carl | RING SEAL, IN PARTICULAR FOR PNEUMATIC CYLINDERS |
| EP0046321A1 (en) * | 1980-08-19 | 1982-02-24 | SKF Industrial Trading & Development Co, B.V. | Method of arranging a sealing ring in a rolling bearing, and sealing ring to which said method may be applied |
| EP0083161A1 (en) * | 1981-12-09 | 1983-07-06 | Brd Company Limited | Hooked universal joints |
| US4544168A (en) * | 1982-06-26 | 1985-10-01 | Skf Kugellagerfabriken Gmbh | Seal between rotating concentric elements |
| DE102006057483A1 (en) * | 2006-12-06 | 2008-06-12 | Schaeffler Kg | Oil lubricated eccentric drive for displacement machine, especially membrane pump has motion transfer member, is useful for membrane pumps and is safer in operation than previous eccentric drives |
| EP2511551A2 (en) | 2011-04-15 | 2012-10-17 | Aktiebolaget SKF | Rolling bearing |
| DE102012200824B4 (en) * | 2012-01-20 | 2021-02-11 | Schaeffler Technologies AG & Co. KG | Radial needle roller bearing assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1762819A (en) * | 1930-06-10 | Asshhtob to thb hew de | ||
| CH182484A (en) * | 1935-05-28 | 1936-02-15 | Skf Svenska Kullagerfab Ab | Warehouse and method of making the same. |
| US2078739A (en) * | 1932-11-15 | 1937-04-27 | Cleveland Steel Products Corp | Universal joint |
| GB580435A (en) * | 1944-09-07 | 1946-09-06 | Fischer Bearings Company Ltd | Improvements relating to sealed bearings |
| GB581232A (en) * | 1944-09-02 | 1946-10-04 | Fischer Bearings Company Ltd | Improvements relating to sealed bearings |
| DE867336C (en) * | 1940-12-13 | 1953-02-16 | Eickhoff Maschinenfabrik Geb | Shaft seal made of oil-resistant rubber or related materials for shafts mounted in housings with roller bearings |
| US2720404A (en) * | 1950-10-16 | 1955-10-11 | Saywell Associates | Lubricant seal |
| CH314987A (en) * | 1952-03-25 | 1956-07-15 | Kupfer Asbest Co | Seal with spring element |
-
0
- DE DENDAT1075383D patent/DE1075383B/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1762819A (en) * | 1930-06-10 | Asshhtob to thb hew de | ||
| US2078739A (en) * | 1932-11-15 | 1937-04-27 | Cleveland Steel Products Corp | Universal joint |
| CH182484A (en) * | 1935-05-28 | 1936-02-15 | Skf Svenska Kullagerfab Ab | Warehouse and method of making the same. |
| DE867336C (en) * | 1940-12-13 | 1953-02-16 | Eickhoff Maschinenfabrik Geb | Shaft seal made of oil-resistant rubber or related materials for shafts mounted in housings with roller bearings |
| GB581232A (en) * | 1944-09-02 | 1946-10-04 | Fischer Bearings Company Ltd | Improvements relating to sealed bearings |
| GB580435A (en) * | 1944-09-07 | 1946-09-06 | Fischer Bearings Company Ltd | Improvements relating to sealed bearings |
| US2720404A (en) * | 1950-10-16 | 1955-10-11 | Saywell Associates | Lubricant seal |
| CH314987A (en) * | 1952-03-25 | 1956-07-15 | Kupfer Asbest Co | Seal with spring element |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2343939A1 (en) * | 1976-03-13 | 1977-10-07 | Freudenberg Carl | RING SEAL, IN PARTICULAR FOR PNEUMATIC CYLINDERS |
| EP0046321A1 (en) * | 1980-08-19 | 1982-02-24 | SKF Industrial Trading & Development Co, B.V. | Method of arranging a sealing ring in a rolling bearing, and sealing ring to which said method may be applied |
| EP0083161A1 (en) * | 1981-12-09 | 1983-07-06 | Brd Company Limited | Hooked universal joints |
| US4544168A (en) * | 1982-06-26 | 1985-10-01 | Skf Kugellagerfabriken Gmbh | Seal between rotating concentric elements |
| DE102006057483A1 (en) * | 2006-12-06 | 2008-06-12 | Schaeffler Kg | Oil lubricated eccentric drive for displacement machine, especially membrane pump has motion transfer member, is useful for membrane pumps and is safer in operation than previous eccentric drives |
| EP2511551A2 (en) | 2011-04-15 | 2012-10-17 | Aktiebolaget SKF | Rolling bearing |
| DE102011007476A1 (en) * | 2011-04-15 | 2012-10-18 | Aktiebolaget Skf | roller bearing |
| DE102011007476B4 (en) * | 2011-04-15 | 2016-07-07 | Aktiebolaget Skf | roller bearing |
| DE102012200824B4 (en) * | 2012-01-20 | 2021-02-11 | Schaeffler Technologies AG & Co. KG | Radial needle roller bearing assembly |
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