DE19912432B4 - release bearing - Google Patents

Abstract

Ausrücklager (1a, 1b, 1c, 1d) of a clutch preferably for motor vehicles at least consisting of a torsionally rigid on a sliding sleeve arranged bearing ring (3, 32), a rotating bearing ring (12a, 12b, 38) and guided between the two components, around a common rotation axis rotating rolling elements (21) with the following features:
a) between a clutch associated with the plate spring (15) and the release bearing (1 a, 1 b, 1 c, 1 d) are provided two complementary spherical surface segments having areas (18, 20),
b) the first of the spherical surface segments having regions (18) is provided directly or indirectly on the plate spring (15),
c) the second of the spherical surface segments having regions (20) is provided directly or indirectly on the release bearing (1a, 1b, 1c, 1d),
d) the radius of curvature of the spherical surface segments (19) intersects the common rotational axis (4) predetermined by the rolling elements (21) of the release bearing,
e) the release bearing is parallel to the rotation axis (4) self-centering.

Description

The The invention relates to a release bearing for one Coupling preferably in motor vehicles. Devices of this type exist usually arranged at least from a torsionally rigid on a sliding sleeve Bearing ring, a bearing shell rotating at the speed of the coupling, wherein between the two components is a common axis of rotation rotating rolling elements are housed. The displacement of this release bearing causes the deflection of a diaphragm spring, the engagement and disengagement of the Clutch controls. The shift takes place via a manually operated Clutch pedal or an automated actuation system, wherein in case the manual operation the movement of the pedal over a Bowden cable and a release lever on the guide tube of the release bearing transferred can be. Other manual or automated actuation systems are hydraulically operated, for example. These include a donor and slave cylinders, which are connected by a hydraulic line. When the master cylinder is activated, the one located in it becomes Transfer pressurized fluid through the hydraulic line to the slave cylinder and solve thus an axial displacement of the release bearing.

Of the Structure of the release bearing corresponds largely to that of a thrust bearing or an angular contact ball bearing, each bearing ring being angled at right angles to the axis of symmetry the release bearing having arranged flange. Here is a bearing ring on the Flange part torsionally rigid with the axially displaceable actuator connected. On the flange part of the further aligned for coupling, encircling bearing ring are the plate spring tongues or release lever the clutch supported.

to Avoidance of dust and impurities of all kinds in the release bearing this is provided with seals that also leak lubricant from the release bearing prevent.

in the installed condition, the release bearing can be a so-called tongue strike, d. H. be subjected to an axial shock of the disc springs, the wear of the release bearing elevated and thus leads to a reduction in the life. This production-related, Axial impact caused by clutch plate springs leads to the aforementioned release systems to leakage problems and loss of comfort.

Farther can the two separated by the coupling drive components a axis-parallel offset of the force-transmitting Have waves caused by a self-centering of the release bearing must be compensated, otherwise the release bearing an increased Exposed to wear is and comfort loss have to be tolerated by vibrations.

to Compensation or to compensate for such disadvantageous tongue strike and the axial displacement of the power transmitting shafts became different Proposed solutions.

The DE-U 72 45 141 discloses a release bearing assembly in which a centering ring is disposed between the spring tongues of the disc spring and the inner ring of the release bearing. The contact surface is designed spherical between the inner ring and the centering, whereby the centering can move relative to the inner ring of the release bearing and align it. Disadvantage of the proposed solution is, inter alia, a lack of a radial, paraxial compensation in the form of a radial self-centering, so that an offset of the force-transmitting waves can not be compensated. In addition, a release bearing of the disclosed teaching tumbled about the ball center of the spherical centering ring, since the release bearing is supported only at this axial height by means of an elastic ring, so that here Laufunförmigkeiten and related vibrations are to be expected. The design of the release bearing in the form of solid, machined components also brings a relatively large required installation space and a high weight with it.

The arrangement of a self-centering release bearing is in US 4 555 007 shown. The torsionally rigid arranged outer bearing ring of the release bearing is supported radially displaceably on a housing which is rotatably connected to the sliding sleeve. The housing engages outside the release bearing almost completely, wherein the outer, axially parallel to the axis of symmetry of the release bearing extending leg of the housing is provided at the free end with a sealing disc which is radially inwardly formed with the two-piece inner ring of the bearing a labyrinth seal. This arrangement does not allow a displacement or pivoting of a component from the release bearing to compensate for a tongue strike of the diaphragm spring tongues.

task The invention is therefore to form a release bearing such that one Adjustment of the release bearing to compensate for an axis-parallel offset of the force-transmitting Waves and a compensation of the tongue beating of the diaphragm spring tongues as well as other contributing to the offset of the two waves influences is made possible. Furthermore should the release bearing one opposite the prior art have reduced installation space and cost-effective be manufacturable.

The present object has been achieved by the formation of a release bearing solved, that arranged from one between a torsionally rigid on a sliding sleeve Bearing ring, a rotating bearing shell and between the two components guided is rolling around a common axis of rotation rolling elements and between a clutch associated with the plate spring and the release bearing two complementary ones Spherical surface segments having provided areas, the first a spherical segment having area indirectly or directly provided on the plate spring and the second is a spherical segment area directly or indirectly at the release bearing is provided and the radius of curvature the spherical surface segments that of the rolling elements of the release bearing predetermined common axis of rotation cuts and the release bearing is self-centering parallel to the axis of rotation.

Advantageous is still that the the spherical surface segments having components can pivot against each other, without that restoring forces effective be effected in the provided pivoting range by stops can be.

Of the Structure of the release bearing according to the invention furthermore, provides a two-part bearing ring, on which the plate spring tongues or the clutch plate springs of the friction clutch supported are. This revolving bearing ring is provided to guide the rolling elements with a bearing shell and with a cooperating with the spring tongues flange part, the supported on the bearing shell is, wherein the flange and the bearing shell, the complementary spherical surface segments form. This is the one support flange or a flange portion forming portion of the bearing ring separated from the component on which the rolling elements are guided. By divided according to the invention Bearing ring comes in the installed state in a production-related Axial stroke of the clutch actuator spring for a unique adjustment of the split bearing ring, i. a displacement of the flange to the Bearing shell. The compulsive forces emanating from the axial strike become hence from the release bearing kept away, creating an optimal concentricity of the bearing preserved. The inventive self-adjusting, rotating Bearing ring of the release bearing prevents continue to effectively an adverse outgoing from the axial impact Clutch judder. The structure of the invention in two parts designed Lagerrings is both for a drawn as well as for a depressed activity the friction clutch can be used.

The Invention includes furthermore a sealed release bearing on, i. Sealing elements which are arranged on both sides of the rolling elements. This will be an adverse entry of contaminants into the interior of the release bearing, i.e. on the guideway the rolling bearing avoided. At the same time, these sealing elements prevent one Lubricant outlet from the release bearing.

advantageous Embodiments are provided so that for sealing the interior the release bearing a sealing washer can be arranged on the bearing ring and that a free End of the sealing disc while maintaining a sealing gap up to guided the flange can be.

Also the gasket can be made of sheet metal without cutting and / or have an L-shaped profile, with a short leg biased on a cylindrical Legs in compliance with an annular gap radially in the direction of Bearing ring can be aligned.

The Components of the two-part, circumferential bearing ring are in the area of a curved Contact zone supported. In one of the Kupplungsstellerfedern outgoing, obliquely directed force application on the flange of the bearing ring is characterized a certain shift across from the bearing ring possible. The curved one Contact zone can be applied to the forces occurring or under consideration the material used or the material pairing for wear reduction and achieving a long life accordingly dimensioned be.

The Compensation function of the invention Divided circumferential bearing ring causes an optimal power flow, which is positively affects the life of the release bearing. This effect presents a through the division of the bearing ring in a bearing shell for guide the rolling elements and in a flange on which the spring tongues of the clutch actuator spring guided are. The bearing shell has on the side facing away from the Wälzkörperlaufbahn a Contact zone on which the flange is supported. In the contact zone the bearing shell as well as the flat part are complementarily shaped spherical segment and thereby arranged concentrically with each other, so that in one Installation position the flange part along the curvature is displaceable on the bearing shell. The desired self-adjustment of the Two-part revolving bearing ring is thereby improved that the Bearing shell and the flange in the region of a contact zone respectively form a spherical segment. This shaping simplifies in one occurring axial or spring tongue beat a deliberate shift of the flange along the curved shaped contact surface on the Bearing shell.

An alternative education looks a bit skinny walled, preferably made of non-cutting steel bearing shell, which is inserted into a bearing shell surrounding the flange. For this purpose, the flange is provided with a the outer curvature of the bearing shell adapted a contact zone forming receptacle which allows a displacement of the flange along the curvature of the bearing shell.

When a sufficient value for the pivotability of the flange against the bearing shell has for the divided according to the invention, circumferential bearing ring a pivot angle β of ± 10 °, preferably ± 1.5 ° proved sufficient. As supportive measure for the invention of a friction-reducing displacement of the flange part on the bearing shell closes the invention relates to a lubricant treated contact zone one.

The Invention includes continue, that the inner Bearing ring or outer bearing ring are formed as a divided circumferential bearing ring. With it takes the invention has no influence the arrangement or installation position of the bearing rings of the release bearing and the arrangement of the spherical surface segments having areas. For example, the area having the second spherical surface segment be formed from the bearing shell, which the spherical surface segments forming areas radially outside or be arranged radially within the circumference formed by the rolling elements and / or having a first spherical surface segment Area can be on the flange part or directly on the plate spring be formed.

A Further embodiment of the invention relates to the position of the contact zone between the bearing shell and the flange part. This is located according to the invention in continuation a pressure line, the two contact points of the rolling element on the bearing shell and the torsionally rigidly arranged bearing ring connects, and by the Wälzkörpermittelpunkt runs, where the radius of curvature defined by the rolling elements Rotation axis intersects. The camp agreement favors the Force transmission from the flange in the release bearing.

When a preferred embodiment, the invention comprises a bearing shell, the above an angle of <100 ° surrounds the spherical rolling elements. The Encloses flange part in turn completely the bearing shell. To limit the pivoting movement of the flange across from the thin walled designed bearing shell are in the receptacle of the flange each, spaced from the respective end of the bearing shell, provided stops.

The Invention includes continue a measure to achieve a precompletion release bearing. This serves a Holding member attached to a bearing ring the other bearing ring playful, positive fit embraces. With the holding member according to the invention Can be a captive release unit be created, with an assembly simplification and a cost-optimized storage can be achieved.

According to the invention, the release bearing comprises bearing rings, the non-cutting, for example, by a deep drawing process, made of sheet metal are manufactured and thus cost-effectively process in large numbers manufacture. The same conditions apply to the production and use of all the rest Components for example, the holding member to.

According to one preferred embodiment of Invention is provided, the holding member or a retaining ring to attach the non-rotatable bearing ring of the release bearing. The free end of the holding member then encloses in compliance an annular gap a portion of the associated further circumferential Bearing ring. The free end of the holding member follows radially spaced an outer contour the radially stepped portion of the bearing ring and thus causes a retention of both bearing rings to achieve a pre-assembled Unit of the entire release bearing. The holding member takes over continue the task of a function-related gap between to seal the bearing rings, thereby preventing the ingress of dust and Impurities of all kinds effectively prevented in the release bearing becomes.

alternative includes the invention, a holding member, which on the bearing shell or the flange part of the split-shaped bearing ring is attached and with the free end of the associated component of the shared design Overlaps bearing ring. Such a holding member may additionally with a radially aligned Be provided with a board to create a preassembled unit a free end of the associated radially overlaps further bearing ring.

When Holding member is a spanlos of sheet metal, preferably by a thermoforming process manufactured component. For attachment can this example over a press fit or a weld be attached. When installed, the holding member has a sufficient elasticity, so that their radially stepped portion when joining the bearing rings radially dodges and thus a form-fitting Holder of the individual components allows.

The invention includes a further sealing element which, in order to achieve a two-sided seal of the interior of the release bearing, preferably on the side facing away from the holding member of the rolling body is arranged. For this purpose, preferably a sealing washer which is attached to the torsionally rigidly arranged bearing ring and guided in compliance with an annular gap to the opposite bearing ring. As a gasket, it is useful to use a non-cutting formed from sheet metal component with an L-shaped profile. The short leg of this gasket is supported under prestress on the torsionally rigidly arranged bearing ring. The long leg of the sealing washer bridges the distance between the two bearing rings. To achieve a labyrinth-like sealing gap between the sealing disc and the rotating bearing ring, the free end of the sealing disc can furthermore be arranged parallel to a vertically extending section of the rotating bearing ring. This embodiment extends the sealing gap and thus improves the effectiveness of the seal.

One Another inventive idea sees a release bearing, wherein the bearing shell and the flange portion are formed of components that are mutually opposed line touches support. In this case, a shift or a pivoting of the Flange part opposite the bearing ring on a curvature of the Bearing ring, which advantageously forms a linear guide, be possible.

Hereinafter, the invention with reference to 1 to 5 explained in more detail.

It demonstrate:

1 an inventive release bearing in a half section with a split outer ring,

2 a release bearing with a likewise split outer ring, in which the bearing shell is integrated in the flange,

3 an alternatively designed release bearing whose circumferential inner ring is formed in two parts,

4 a two-piece outer ring with a retaining member attached to the bearing shell
and

5 on an enlarged scale a detail of the in 1 pictured release bearing.

In 1 is a release bearing 1a shown on an axially displaceably arranged actuator 2 is attached. The release bearing 1a includes a torsionally rigid with the actuator 2 connected inner bearing ring 3 , This is the bearing ring 3 with a vertically oriented, ie perpendicular to a rotation axis 4 extending flange 5 provided on a formed of sheet metal holding element 6 is supported. To achieve a frictional contact of the flange 5 on the holding element 6 one serves between an inner cylindrical portion of the retaining element 6 and the flange part 5 inserted plate spring 7 , That on a front side 8th of the actuator 2 fitting retaining element 6 engages with an outer cylindrical section 9 an end portion of the actuator 2 and engages to achieve a positive locking with a snap-in nose 10 in a radial recess 11 of the actuator 2 , The circumferential outer bearing ring 12a consists of two components, namely a flange 13a and a bearing shell 14a ,

The flange part 13a forms two legs arranged at right angles to each other 16 . 17 , The vertically oriented leg is used 16 for supporting spring tongues 15 that with an im 1 not shown friction clutch in connection. The opposite direction of the spring tongues 15 Angled thighs 17 is with a radially outwardly rounded end portion 18 hen verses and relies on the inside over a contact zone 19 on the bearing shell 14a from. The contact zone 19 is located on the outside on a spherical surface segment having a region 20 the bearing shell 14a , wherein the radius R of the spherical surface segment the axis of rotation 4 cuts. Due to the complementary to the curvature 20 designed inner contour of the end portion 18 form the flange part 13a and the bearing shell 14a a sphere segment 22 , To achieve a direct introduction of force and avoiding a constraining force exists between the contact zone 19 and the pressure line 23 the release bearing 1a a positional match. The printing line 23 is due to the pressure angle "α" of the release bearing 1a certainly. Due to the inventive shared arrangement of the bearing ring 12a and a curved contact zone 19 owns the flange part 13a a certain degree of freedom, so that this occurs when an axial impact of the spring tongue 15 Align while doing a shift of the bearing shell 14a can make according to the designated by a double arrow pivoting range "β".

The inner torsionally rigidly arranged bearing ring 3 forms on the flange of the part 5 opposite end of a cylindrical section 24 on which a sleeve-like shaped, formed of sheet metal holding member 25 is attached. This encloses the release bearing 1a almost complete, with one end zone 26 of the holding member 25 is folded radially inward while the end portion 18 from the flange part 13a To create a captive all items of the release bearing 1a radially covered. In the installed state of the release bearing 1a is the holding member 25 both to the bearing shell 14a as well as the flange part 13a arranged radially spaced. Furthermore, the holding member covers 25 a gap 27 between the bearing shell 14a and the bearing ring 3 and thus prevents dirt and impurities from entering the release bearing 1a , At the of the gap measure 27 opposite side of the rolling elements 21 is the bearing ring 3 with a L-shaped gasket 28 Mistake. For attachment is a short leg 29 the sealing washer 28 under preload on the bearing ring 3 held strong. The radially oriented leg 30 is, however, in compliance with a sealing gap 31 to the flange part 13a guided.

In the 2 is the release bearing of the invention 1b displayed. The individual components are largely consistent with those of 1 match, wherein like parts are given the same reference numerals.

The release bearing 1b is with a release bearing 1a Deviating designed outer bearing ring 12b provided, the flange part 13b at the same time the rolling elements 21 encloses. As a bearing shell 14b serves a thin-walled, non-cutting shaped sheet metal shell, which on a recording 37 of the flange part 13b is supported, whose contour is adapted to the spherical segment surface of the bearing shell 14b , Consistent with the 1 turns himself between the bearing shell 14b and the flange part 13b a contact zone 19 one with the pressure line 23 the pressure angle α coincides. Also this two-piece bearing ring 12b allows a displacement between the flange part 13b and the bearing shell 14 due to the movably arranged bearing shell 14b in the recording 37 , The at the flange part 13b arranged attacks 35 . 36 , each spaced from the end of the bearing shell 14b are arranged, illustrate an adjustment between the bearing ring 12b and the flange part 13b ,

In 3 has the release bearing 1c as an alternative to the previously discussed embodiments, a split circumferential inner race 32 on, which is composed of the flange 33 and the bearing shell 34 , The outer bearing ring 38 is against rotation with the holding element 39 connected to an in 3 not shown actuator is attached. The formation of the flange 33 and the bearing shell 34 and their support comparable to the formation of the bearing ring 12a according to 1 the flange part 33 also forms a spherical segment 40 with the radius R, with an outer contour of the bearing shell 34 the contact zone 41 that forms on the pressure line 43 the pressure angle is arranged, where R is the axis of rotation 4 cuts. As a captive for the two items of the bearing ring 32 serves a spring on the bearing shell 34 attached retaining member 42 that the end area 40 of the flange part 33 radially covered. The release bearing 1c also has a sealing washer 44 on the bearing ring 38 at the spring tongue 15 directed end is attached.

The sealing washer 44 is directed radially inward and while maintaining a sealing gap 45 to the bearing shell 34 guided.

This in 4 pictured release bearing 1d also includes a circumferentially divided outer ring 12a in one too 1 different shape. However, since the basic structure does not differ, they are the bearing rings 3 . 12a relevant components with the reference numerals according to 1 provided and not explained further. In contrast to 1 encloses the bearing shell 14a an end portion of the bearing ring 3 , As a holding member 46 serves a sheet metal sleeve, the rotation on the bearing shell 14a is fixed and with a radially inboard board 47 a free end of the bearing ring 3 covered. On the board 47 opposite end forms the holding member 46 several circumferentially distributed spring clips arranged 48 , which are under bias on the flange 13a support. For further sealing of the release bearing 1d between the flange part 13a and the inner bearing ring 3 serves one on the flange 13a attached sealing washer 49 whose free end is parallel to the vertically oriented flange part 5 from the bearing ring 3 runs and thus a desired extended sealing gap 50 forms.

In 5 are the standing in Wälzkontakt components of the release bearing 1a shown on an enlarged scale. After that is the flange part 13a so on the bearing shell 14a supported that the pressure line 23 the release bearing 1a , through the contact zone 19 is guided. The printing line 23 connects itself between the rolling element 21 and the bearing ring 3 or the bearing shell 14a adjusting contact points 51 and 52 and passes through the center of the rolling element 21 , The extension of the pressure line defined by the pressure angle "α" 23 illustrates the rotation axis, not shown, that in order to achieve a spherical segment surface of the ball radius must intersect the axis of rotation.

The claims filed with the application are formulation proposals without precedent for the Achieving further patent protection. The applicant reserves before, even more, so far only in the description and / or drawings to claim disclosed features.

In dependent claims used backlinks point to the further development of the subject of the main claim by the features of the respective subclaim; you are not as a renunciation of the achievement of an independent, representational Protection for the characteristics of the referenced under claims to understand.

The objects these subclaims but also form independent ones Inventions which are independent of the subjects of the preceding subclaims design exhibit.

The The invention is also not limited to (s) embodiment (s) of the description limited. Rather, numerous modifications are within the scope of the invention and modifications possible, in particular, such variants, elements and combinations and / or Materials, for example, by combination or modification of individual in conjunction with those in the general description and embodiments as well as the claims described and contained in the drawings or Elements or process steps are inventive and combinable Features on a new subject or on new procedural steps or process steps lead, also as far as manufacturing, testing and work procedures.

1a

release bearing

1b

release bearing

1c

release bearing

1d

release bearing

2

actuator

3

bearing ring

4

axis of symmetry

5

flange

6

retaining element

7

Belleville spring

8th

front

9

section

10

snap lug

11

recess

12a

bearing ring

12b

bearing ring

13a

flange

13b

flange

14a

bearing shell

14b

bearing shell

15

spring tongue

16

leg

17

leg

18

end

19

contact zone

20

curvature

21

rolling elements

22

Spherical surface segment

23

pressure line

24

section

25

retaining member

26

End Zone

27

clearance

28

sealing washer

29

leg

30

leg

31

sealing gap

32

bearing ring

33

flange

34

bearing shell

35

attack

36

attack

37

admission

38

bearing ring

39

retaining element

40

end

41

contact zone

42

retaining member

43

pressure line

44

sealing washer

45

sealing gap

46

retaining member

47

shelf

48

spring clip

49

sealing washer

50

sealing gap

51

contact point

52

contact point

α

contact angle

β

angle of the swivel range

R

radius of the spherical surface segment

Claims (32)

Release bearing ( 1a . 1b . 1c . 1d ) a clutch preferably for motor vehicles at least consisting of a torsionally rigidly arranged on a sliding sleeve bearing ring ( 3 . 32 ), a rotating bearing ring ( 12a . 12b . 38 ) and guided between two components, rotating about a common axis of rotation rolling elements ( 21 ) having the following features: a) between a disc spring belonging to the clutch ( 15 ) and the release bearing ( 1a . 1b . 1c . 1d ) are two complementary spherical surface segments having areas ( 18 . 20 b) the first of the spherical surface segments having areas ( 18 ) is indirectly or directly on the plate spring ( 15 ), c) the second of the spherical surface segments having areas ( 20 ) is directly or indirectly at the release bearing ( 1a . 1b . 1c . 1d ), d) the radius of curvature of the spherical surface segments ( 19 ) cuts the of the rolling elements ( 21 ) of the release bearing predetermined common axis of rotation ( 4 ), e) the release bearing is parallel to the axis of rotation ( 4 ) self-centering. Release bearing according to claim 1, characterized in that the two spherical surface segments having areas ( 18 . 20 ) are mutually pivotable. Release bearing according to claim 1 and / or 2, characterized in that the Kugelflächenseg components ( 18 . 20 ) free from the action of restoring forces due to the intended pivoting range of the components ( 18 . 20 ) ( 35 . 36 ) are effected. Release bearing according to one of the preceding claims, characterized in that the two spherical surface segments forming regions ( 18 . 20 ) form a preferred pivoting range of β = ± 10 °, preferably β = ± 1.5 °. Release bearing according to one of the preceding claims, characterized in that the peripheral bearing ring ( 12a ) in a pressure plate for the diaphragm spring ( 15 ) forming flange part ( 17 ) and a bearing shell ( 20 ) is divided. Release bearing according to one of the preceding claims, characterized in that the second region ( 20 ) from a to the circumferential bearing ring ( 12b ) associated component is formed. Release bearing according to one of the preceding claims, characterized in that the spherical surface segments ( 18 . 20 ) forming areas radially outside of the rolling elements ( 21 ) are arranged circumferentially. Release bearing according to one of the preceding claims, characterized in that the areas forming the spherical surface segments ( 20 ) radially inside of the rolling elements ( 21 ) are arranged circumferentially. Release bearing according to one of the preceding claims, characterized in that the first region having a spherical surface segment ( 20 ) from the flange part ( 13a ) is formed. Release bearing according to one of the preceding claims, characterized in that the first region having a spherical surface segment ( 20 ) from tongues ( 15 ) is formed of the diaphragm spring. Release bearing according to one of the preceding claims, characterized in that all components ( 12a . 14 ) of the spherical surface segments having areas ( 18 . 20 ) on each other by means of a release bearing ( 1a ) fastened holding member ( 25 ) are affixed with positive fit. Release bearing according to one of the preceding claims, characterized in that the retaining member ( 25 ) on the bearing ring ( 5 ) is attached. Release bearing according to one of the preceding claims, characterized in that the retaining member ( 25 ) by means of welding and / or by a press fit on the bearing ring ( 5 ) is attached. Release bearing according to one of the preceding claims, characterized in that the retaining member ( 25 ) the components ( 14a . 12a ) the spherical surface segments having areas ( 18 . 20 ) peripherally. Release bearing according to one of the preceding claims, characterized in that the retaining member ( 42 ) the components ( 33 . 34 ) of the spherical surface segments having areas ( 41 ) in its inner circumference. Release bearing according to one of the preceding claims, characterized in that the retaining member ( 25 ) the components ( 12a . 14a ) of the spherical surface segments ( 20 ) having in their outer circumference. Release bearing ( 1d ) according to one of the preceding claims, characterized in that the bearing shell ( 14a ) at its with the rolling elements ( 21 ) in a related inner circumference to a sphere surface segment having area ( 20 ) is formed and that at this area on the outer circumference of the pressure plate forming flange ( 13a ) is positively connected, wherein a holding member ( 46 ) on the outer circumference of the flange ( 13a ) Bearing shell ( 14a ) and flange part ( 13a ) play each other and positively encloses. Release bearing according to one of the preceding claims, characterized in that the flange part ( 13a ) enclosed bearing shell ( 14a ) the rolling elements ( 21 ) encloses over an angle β ≤ 100 °. Release bearing ( 1b ) according to one of the preceding claims, characterized in that on the recordings ( 37 ) of the bearing shell ( 14b ) Attacks ( 35 . 36 ) are provided, which the pivoting range of the flange ( 12b ) limit. Release bearing ( 1a ) according to one of the preceding claims, characterized in that on the torsionally rigidly arranged bearing ring ( 5 ) a holding member ( 25 ), whose free end ( 26 ) a radially stepped portion ( 18 ) of the flange part ( 13a ) while maintaining a radial annular gap overlaps and at the same time a between the bearing ring ( 12a ) and the bearing shell ( 14a ) adjusting gap. Release bearing ( 1d ) according to one of the preceding claims, characterized by a bearing shell ( 14a ), on which a holding member ( 46 ) attached at one end as a spring clip ( 48 ), wherein by means of the spring clip ( 48 ) a frictional contact of the flange ( 12a ) to the bearing shell ( 14a ) is reached and the holding member ( 46 ) on the spring clip ( 48 ) facing away End a radially inboard board ( 47 ) having a free end of the rotatably mounted bearing ring ( 3 ) radially overlapped. Release bearing ( 1d ) according to one of the preceding claims, characterized in that the holding member ( 46 ) with a further associated component, preferably with the flange part ( 12a ) is snapped. Release bearing ( 1a . 1b ) according to one of the preceding claims, characterized in that for sealing an interior of the rolling bearing ( 1a . 1b ) a sealing washer ( 28 ) on the bearing ring ( 3 ) is arranged and that a free end of the sealing disc ( 28 ) while maintaining a sealing gap ( 31 ) to the flange part ( 12a . 12b ) is guided. Release bearing ( 1a . 1b ) according to one of the preceding claims, characterized in that the sealing disc ( 28 ) is produced without cutting from sheet metal and / or has an L-shaped profile, wherein a short leg ( 29 ) under bias on a cylindrical leg ( 30 ) while maintaining an annular gap ( 31 ) radially in the direction of the flange part ( 12a . 12b ) is aligned. Release bearing ( 1d ) according to one of the preceding claims, characterized in that a sealing disc ( 49 ) rotatably on the flange ( 12a ) is attached and the free end to form a sealing gap ( 50 ) parallel to a vertically oriented flange part ( 5 ) of the flange part ( 3 ) runs. Release bearing according to one of the preceding claims, characterized in that at least one component ( 12a . 12b . 14a . 14b . 13a . 13b . 32 . 3 . 38 , ...) is produced without cutting. Release bearing according to one of the preceding claims, characterized in that a retaining member ( 25 . 42 . 46 ), on the bearing ring ( 3 ) or the bearing shell ( 14a . 34 ), the respective other bearing ring or a bearing ring associated with the associated flange part positively engages around play. Release bearing according to one of the preceding claims, characterized in that on both sides of the rolling elements ( 21 ) Sealing elements ( 50 . 49 ) are arranged. Release bearing according to one of the preceding claims, characterized in that the bearing shell ( 14a . 14b . 34 ) and the flange part ( 13a . 13b . 33 ) line-supported supported components form, wherein the linear contact support a displacement of the flange ( 13a . 13b . 33 ) along a curve ( 20 ) of the bearing ring ( 14a . 14b . 34 ). release bearing according to one of the preceding claims, characterized that at least a component is produced by a deep drawing process. Release bearing according to one of the preceding claims, characterized in that the release bearing ( 1c ) by the circumferential inner bearing ring ( 32 ) is formed, the bearing shell ( 34 ) and the flange part ( 33 ). Release bearing according to one of the preceding claims, characterized in that the contact zone ( 19 . 41 ) between the bearing shell 14a . 14b . 34 ) and the flange part ( 13a . 13b . 33 ) on a pressure line defined by the pressure angle ^" α ^" ( 23 . 43 ) of the release bearing ( 1a . 1b . 1c . 1d ), the two contact points ( 51 . 52 ) of the rolling element ( 21 ) on the bearing shell ( 14a . 14b . 34 ) and on the bearing ring ( 3 . 38 ) and through the center of the rolling element ( 21 ) is guided.