DE4232563B4 - Rolling bearing for mounting a machine tool spindle - Google Patents
Rolling bearing for mounting a machine tool spindle Download PDFInfo
- Publication number
- DE4232563B4 DE4232563B4 DE19924232563 DE4232563A DE4232563B4 DE 4232563 B4 DE4232563 B4 DE 4232563B4 DE 19924232563 DE19924232563 DE 19924232563 DE 4232563 A DE4232563 A DE 4232563A DE 4232563 B4 DE4232563 B4 DE 4232563B4
- Authority
- DE
- Germany
- Prior art keywords
- outer ring
- rolling elements
- spindle
- bearing
- damping
- 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.)
- Expired - Fee Related
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 25
- 238000013016 damping Methods 0.000 claims abstract description 34
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 230000036316 preload Effects 0.000 claims abstract 2
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 230000001050 lubricating effect Effects 0.000 claims description 2
- 239000010913 used oil Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000001960 triggered effect 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0237—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means involving squeeze-film damping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
-
- 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
- F16C19/38—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 two or more rows of rollers
- F16C19/381—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 two or more rows of rollers with at least one row for radial load in combination with at least one row for axial load
-
- 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
- F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
-
- 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
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
- F16C27/045—Ball or roller bearings, e.g. with resilient rolling bodies with a fluid film, e.g. squeeze film damping
-
- 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
-
- 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
- F16C2322/39—General buildup of machine tools, e.g. spindles, slides, actuators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Turning (AREA)
- Support Of The Bearing (AREA)
Abstract
Wälzlager (1) zur Lagerung einer Werkzeugmaschinenspindel (2), bestehend aus einem Außenring (3) und einem Innenring (4), zwischen denen vorzugsweise zylindrische Wälzkörper (7) abrollen und bei dem zwischen den Stirnflächen des Außenringes (3) einerseits und im Abstand von diesen angeordneten und mit der Spindel (2) verbundenen Wellenscheiben (6) andererseits Wälzkörper (5) abrollen, wobei die Wellenscheiben (6) zum Einstellen ihrer Vorspannung auf der Spindel (2) verschiebbar angeordnet sind, dadurch gekennzeichnet, daß die radiale und axiale Ausdehnung von Außenring (3) und Wellenscheiben (6) so aufeinander abgestimmt sind, daß zwischen den Stirnflächen des Außenringes (3) und den Wellenscheiben (6) ein Dämpfungsspalt (10) entsteht, der über einen Zuführungskanal (14) im Außenring (3) mit Dämpfungsflüssigkeit beaufschlagbar ist, wobei an der Innenseite des Außenringes (3) in seinem Randbereich kreisringförmige Nuten (15) zur Aufnahme der Wälzkörper (5) angeordnet sind.roller bearing (1) for supporting a machine tool spindle (2) consisting of an outer ring (3) and an inner ring (4), between which preferably cylindrical Rolling elements (7) unroll and in which between the end faces of the outer ring (3) on the one hand and spaced from these and connected to the spindle (2) Rolling shaft (6) on the other rolling elements (5), wherein the Shaft washers (6) for adjusting their preload on the spindle (2) are arranged displaceably, characterized in that the radial and axial extent of outer ring (3) and wave washers (6) are coordinated so that between the faces of the outer ring (3) and the wave washers (6) creates a damping gap (10), the one about feed channel (14) in the outer ring (3) with damping fluid can be acted upon, wherein on the inside of the outer ring (3) in its edge region annular grooves (15) for receiving Rolling elements (5) are arranged.
Description
Die Erfindung betrifft ein Wälzlager zur Lagerung einer Werkzeugmaschinenspindel, bestehend aus einem Außenring und einem Innenring, zwischen denen vorzugsweise zylindrische Wälzkörper abrollen, und bei dem zwischen den Stirnflächen des Außenringes einerseits und im Abstand von diesen angeordneten und mit der Spindel verbundenen Wellenscheiben andererseits Wälzkörper abrollen, wobei die Wellenscheiben zum Einstellen ihre Vorspannung auf der Spindel verschiebbar angeordnet sind.The The invention relates to a rolling bearing for mounting a machine tool spindle, consisting of a outer ring and an inner ring, between which roll preferably cylindrical rolling elements, and between the end faces of the outer ring on the one hand and at a distance from these and arranged with the spindle on the other hand roll rolling elements, wherein the wave washers slidably arranged for adjusting their bias on the spindle are.
Ein derartig kombiniertes Nadel-Axial-Zylinderrollenlager spielt beispielsweise bei der Lagerung von Wälzschraubtrieben eine bedeutende Rolle. Dabei handelt es sich um zweiseitig wirkende Axial-Rollenlager, deren Zwischenscheibe gleichzeitig den Außenring eines Radial-Nadellagers bildet. Solche Lager werden in der Regel an den Enden von Gewindespindeln auf an das Spindelgewinde anschließenden Absätzen angeordnet, wobei sich die eine Wellenscheibe gegen den Spindelabsatz anlegt, während die zweite Wellenscheibe mittels einer gegen sie anliegenden Gewindemutter angestellt wird, die in ein besonderes Gewinde auf den Wellenabsatz eingreift (INA-Sonderdruck aus "Antriebstechnik", Heft 10, Oktober 1990).One For example, such a combined needle-axial cylindrical roller bearing plays in the storage of Wälzschraubtrieben a significant role. These are two-sided Axial roller bearings whose intermediate disc at the same time the outer ring a radial needle bearing forms. Such bearings are usually arranged at the ends of threaded spindles on paragraphs adjoining the spindle thread, wherein the one wave washer applies against the spindle shoulder, while the second wave washer by means of a fitting against them threaded nut is hired in a special thread on the shaft shoulder engages (INA reprint from "Antriebstechnik", issue 10, October 1990).
In diesem Zusammenhang ist auch bekannt, daß im Werkzeugmaschinenbau in Vorschubrichtung wirkende Axialschwingungen als Erschütterungen auf die Spindel und somit auf das Bearbeitungswerkzeug bzw. auf den Werkzeugtisch übertragen werden und dadurch zu Ungenauigkeiten hinsichtlich der Oberflächengüte des zu bearbeitenden Werkstückes bzw. zu Positionierungenauigkeiten des Werkzeugtisches führen.In This connection is also known that in machine tool in Feed direction acting axial vibrations as shocks the spindle and thus on the machining tool or on the Transfer tool table and thereby inaccuracies in the surface quality of the machined workpiece or lead to positioning inaccuracies of the tool table.
Dämpfungsmaßnahmen
zur Verringerung von Schwingungen sind im Werkzeugmaschinenbau ebenfalls
bekannt. So wird beispielsweise in dem
Der Nachteil einer derartigen Anordnung besteht darin, daß einerseits nur Schwingungen in radialer Richtung gedämpft werden und andererseits ein relativ großer axialer Bauraum benötigt wird.Of the Disadvantage of such an arrangement is that on the one hand only vibrations are damped in the radial direction and on the other hand a relatively large one axial space required becomes.
Auch
aus der
Es ist daher Aufgabe der Erfindung ein Wälzlager zu entwickeln, bei dem einwirkende Schwingungen in axialer Richtung auf benachbarte Teile nicht oder nur gedämpft übertragen werden. Darüber hinaus soll die Dämpfungsmaßnahme nur wenig zusätzlichen Bauraum beanspruchen.It is therefore an object of the invention to develop a rolling bearing, in the acting vibrations in the axial direction to adjacent Parts are not transmitted or only steamed become. Furthermore should the damping measure only little additional Take up space.
Erfindungsgemäß wird diese Aufgabe nach den Merkmalen des kennzeichnenden Teils von Anspruch 1 gelöst.According to the invention this Task according to the features of the characterizing part of claim 1 solved.
Durch die zwischen den Stirnflächen des Außenringes und den Wellenscheiben gebildeten Dämpfungsspalten wird erreicht, daß Schwingungen in Vorschubrichtung der Spindel nur gedämpft übertragen werden. Bei einer durch Schwingungen ausgelösten axialen Bewegung von Außenring und Wellenscheiben gegeneinander tritt in dem mit Dämpfungsflüssigkeit gefüllten Dämpfungsspalten eine dämpfende Quetschwirkung auf Basis des Squeeze-Effektes ein.By the between the front surfaces of the outer ring and the wave gaps formed damping gaps is achieved that vibrations in Feed direction of the spindle are transmitted only attenuated. At a triggered by vibrations axial movement of outer ring and wave washers against each other occurs in the with damping fluid filled damping gaps a steaming Squeezing effect based on the squeeze effect.
Eine derartige Schwingungsdämpfung wirkt sich bei Einsatz einer Haupt- bzw. Vorschubspindel in einer Werkzeugmaschine positiv auf die Oberflächengüte der zu bearbeitenden Teile sowie hinsichtlich der Standzeit der Werkzeuge und auf die Positioniergenauigkeit des Werkzeugtisches aus.A such vibration damping affects when using a main or feed screw in one Machine tool positively to the surface quality of the parts to be machined as well as with regard to tool life and positioning accuracy of the tool table.
Ein anderer Vorteil ist darin zu sehen, daß die dämpfende Wirkung mit eigenen Bestandteilen des Wälzlagers realisiert wird. Dazu sind Lageraußenring und Wellenscheiben in ihren Ausmaßen nur geringfügig zu vergrößern, so daß vergleichsweise wenig Bauraum in radialer und axialer Richtung benötigt wird.One Another advantage is the fact that the damping effect with its own Components of the rolling bearing is realized. These are bearing outer ring and shaft washers in their dimensions only slightly to enlarge, so that comparatively little Space in the radial and axial direction is needed.
Durch die Aufnahme der Wälzkörper in kreisringförmigen Nuten des Außenringes wälzen diese zwischen den Wellenscheiben und dem durch die ringförmige Nut zurückgesetzten Teil der Stirnflächen des Außenringes ab. Der Dämpfungsspalt bzw. die Dämpfungsspalten werden in diesem Fall von den Stirnflächen des Außenringes und den Wellenscheiben gebildet.By the inclusion of rolling elements in annular Grooves of the outer ring roll this between the wave washers and through the annular groove reset Part of the end faces of the outer ring from. The damping gap or the attenuation gaps In this case, the faces of the outer ring and the wave washers educated.
Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen 2 bis 5 erläutert.Further advantageous embodiments of the invention are in the dependent claims 2 to 5 explained.
So soll nach Anspruch 2 für eine wirksame Dämpfung der Dämpfungsspalt eine Breite von 0,02 bis 0,03 mm aufweisen. Je kleiner der Dämpfungsspalt ist, desto größer wird die Dämpfung, da in der Dämpfungsgleichung für einen Squeeze-Film-Dämpfer die Filmbreite in der 3. Potenz im Nenner steht.So should according to claim 2 for an effective damping the damping gap have a width of 0.02 to 0.03 mm. The smaller the damping gap is, the bigger it gets the damping, because in the damping equation for one Squeeze film dampers the film width is in the third power in the denominator.
Aus Anspruch 3 geht hervor, daß der Zuführungskanal für die Dämpfungsflüssigkeit in der Mitte des Außenringes angeordnet sein soll. Dadurch wird eine gleichmäßige Beaufschlagung beider Dämpfungsspalten mit Dämpfungsflüssigkeit gesichert.Out Claim 3 shows that the feed channel for the damping fluid in the middle of the outer ring should be arranged. As a result, a uniform admission of both damping gaps with damping fluid secured.
In bevorzugter Weiterbildung der Erfindung nach Anspruch 4 ist vorgesehen, daß die Dämpfungsflüssigkeit aus dem zur Schmierung der Wälzkörper verwendetem Öl besteht.In preferred development of the invention according to claim 4 is provided that the damping fluid consists of the oil used for the lubrication of the rolling elements.
Nach einem zusätzlichen weiteren Merkmal der Erfindung gemäß Anspruch 5 sollen an den Stirnseiten des Außenringes Distanzringe angeordnet sein, die mit der äußeren Mantelfläche des Außenringes abschließen und in Richtung Lagermittelpunkt soweit reichen, daß die zwischen den Stirnflächen des Außenringes und den Wellenscheiben angeordneten Wälzkörper ungehindert abwälzen können.To an additional Another feature of the invention according to claim 5 to the End faces of the outer ring Spacers are arranged, which are connected to the outer surface of the outer ring to lock and in the direction of the bearing center so far rich that between the end faces of the outer ring and the rolling elements arranged rolling elements can roll freely.
Bei dieser Ausführungsform der Erfindung braucht der Außenring zwar nicht mit kreisringförmigen Nuten versehen werden, es ist jedoch die Anfertigung von separaten Distanzringen erforderlich. Der Dämpfungsspalt wird in diesem Fall von den Wellenscheiben und einer Stirnseite der Distanzringe gebildet.at this embodiment The invention requires the outer ring Although not with circular Grooves are provided, however, it is the preparation of separate Spacers required. The damping gap is in this Fall from the wave washers and one end face of the spacer rings educated.
Die Erfindung wird an nachstehendem Ausführungsbeispiel näher erläutert. Es zeigen:The Invention will be explained in more detail in the following embodiment. It demonstrate:
Aus
Die
Zwischenscheibe
Der
Innenring
Der
Außenring
bzw. die Zwischenscheibe
Erfindungsgemäß sind Außenring
Diese
Dämpfungsspalte
Im
Gegensatz zu
- 11
- Wälzlagerroller bearing
- 22
- Spindelspindle
- 33
- Außenring, ZwischenscheibeOuter ring, washer
- 44
- Innenringinner ring
- 55
- Wälzkörperrolling elements
- 66
- Wellenscheibenwave washers
- 77
- Lagernadelnbearing needles
- 88th
- LagerstellmutterBearing nut
- 99
- Absatzparagraph
- 1010
- Dämpfungsspaltdamping gap
- 1111
- Schraubescrew
- 1212
- Gehäusecasing
- 1313
- Distanzringspacer
- 1414
- Zuführungskanalfeed channel
- 1515
- kreisringförmige Nutannular groove
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19924232563 DE4232563B4 (en) | 1992-09-29 | 1992-09-29 | Rolling bearing for mounting a machine tool spindle |
FR9311448A FR2696216B1 (en) | 1992-09-29 | 1993-09-27 | BEARING FOR MOUNTING A MACHINE TOOL SPINDLE. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19924232563 DE4232563B4 (en) | 1992-09-29 | 1992-09-29 | Rolling bearing for mounting a machine tool spindle |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4232563A1 DE4232563A1 (en) | 1994-03-31 |
DE4232563B4 true DE4232563B4 (en) | 2005-09-29 |
Family
ID=6469090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19924232563 Expired - Fee Related DE4232563B4 (en) | 1992-09-29 | 1992-09-29 | Rolling bearing for mounting a machine tool spindle |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE4232563B4 (en) |
FR (1) | FR2696216B1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10151263B4 (en) * | 2001-10-17 | 2010-12-02 | Schaeffler Technologies Gmbh & Co. Kg | Axial rolling bearing |
US7637664B2 (en) * | 2004-03-30 | 2009-12-29 | Harmonic Drive Systems, Inc. | Composite roll bearing |
DE102012007972A1 (en) * | 2012-04-20 | 2013-10-24 | Gm Global Technology Operations, Llc | gear assembly |
DE102020211040A1 (en) | 2020-09-02 | 2022-03-03 | Minebea Mitsumi Inc. | Bearing condition detection device and roller bearing with such a bearing condition detection device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1776647A (en) * | 1929-12-28 | 1930-09-23 | Camp M Zubler | Antifriction bearing |
DE7201256U (en) * | 1972-01-14 | 1972-04-06 | Skf Kugellagerfab Gmbh | Arrangement for storage |
DE2738287A1 (en) * | 1977-08-25 | 1979-03-01 | Schaeffler Ohg Industriewerk | Combined radial and thrust rolling bearing - has inner race with slots at either side increasing flexibility under thrust loading |
DE3811129C2 (en) * | 1988-03-31 | 1991-11-07 | Fortuna-Werke Maschinenfabrik Gmbh, 7000 Stuttgart, De | |
DE4105982C1 (en) * | 1991-02-26 | 1992-08-13 | Hueller Hille Gmbh, 7140 Ludwigsburg, De | Main spindle bearing system for machine tool - has middle bearing play-free adjustable, its bush non-rotatable, and sealing rings in gap ends |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1464889A (en) * | 1965-11-26 | 1967-01-06 | Rolling | |
DE2630740B2 (en) * | 1976-04-08 | 1978-08-31 | Kugelfischer Georg Schaefer & Co, 8720 Schweinfurt | Grinding spindle unit |
DE2917425A1 (en) * | 1979-04-28 | 1980-11-06 | Schaeffler Ohg Industriewerk | RADIAL-AXIAL ROLLER BEARING, ESPECIALLY FOR THE BEARING OF BALL ROLLER SPINDLES IN MACHINE TOOLS |
GB2080888A (en) * | 1980-07-29 | 1982-02-10 | Rolls Royce | Bearing assembly |
-
1992
- 1992-09-29 DE DE19924232563 patent/DE4232563B4/en not_active Expired - Fee Related
-
1993
- 1993-09-27 FR FR9311448A patent/FR2696216B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1776647A (en) * | 1929-12-28 | 1930-09-23 | Camp M Zubler | Antifriction bearing |
DE7201256U (en) * | 1972-01-14 | 1972-04-06 | Skf Kugellagerfab Gmbh | Arrangement for storage |
DE2738287A1 (en) * | 1977-08-25 | 1979-03-01 | Schaeffler Ohg Industriewerk | Combined radial and thrust rolling bearing - has inner race with slots at either side increasing flexibility under thrust loading |
DE3811129C2 (en) * | 1988-03-31 | 1991-11-07 | Fortuna-Werke Maschinenfabrik Gmbh, 7000 Stuttgart, De | |
DE4105982C1 (en) * | 1991-02-26 | 1992-08-13 | Hueller Hille Gmbh, 7140 Ludwigsburg, De | Main spindle bearing system for machine tool - has middle bearing play-free adjustable, its bush non-rotatable, and sealing rings in gap ends |
Non-Patent Citations (4)
Title |
---|
INA-Sonderdruck aus "Antriebstechnik", Heft 10, Oktober 1990 * |
Katalog "Kombinierte Radial-Axiallager der Firma INA, NAN-D 9.71 S, 1971 * |
Katalog 4001 der Fa. SKF, 1991, S. 156-159 * |
Konstruktion, 28 Jg., 1976, Heft 11, S. 453 * |
Also Published As
Publication number | Publication date |
---|---|
DE4232563A1 (en) | 1994-03-31 |
FR2696216A1 (en) | 1994-04-01 |
FR2696216B1 (en) | 1995-10-27 |
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