DE4218949A1 - Radial or axial bearing with force measurement - connects bearing ring directly, or roller bearing indirectly via intermediate member, with force measuring film sensor. - Google Patents

Abstract

An axial or radial bearing has at least one bearing ring which guides rollers and contains a force measurement device. The bearing ring is directly connected, or the roller bearing indirectly connected via an intermediate element, to a sensor element. The sensor element is a force measurement foil capable of detecting all types of force loading. The force measurement foil has two polymer layers, one with electrodes and the other with a resistance attached. The sensor element (10a,10b) can be set into an inner (13) or an outer (14) ring. USE/ADVANTAGE - For use in machines or during manufacture of cables, wires and paper to ensure constant tension and hence quality. Bearing is cheap to make, suitable for mass production, easy to use and enables accurate measurement.

Description

The invention relates to a rolling bearing with a Kraftmeßeinrich device is provided, in particular according to the preamble of claim 1.

Applications for force measuring bearings are e.g. B. Manufacturing machines and further processing of wires, ropes, paper or fabric webs, where to ensure a constant quality a constant Tension can be achieved via the rollers provided with roller bearings got to.

Force measuring bearings are also used in automotive engineering, e.g. B. to determine load conditions in power transmission components.

Force measurement bearings are also used in machine tools that work with Surveillance systems are provided, e.g. B. in the form of strain gauges strips with which wear-dependent forces are determined a statement about the state of wear of the tools can.

Standard roller bearings are called force measuring bearings, which are for force measurements, e.g. B. be prepared with strain gauges, the ins special on the outer ring of the rolling bearing in designated order grooves are glued. The functionality is based on the fact that the force supported in the bearing deforms in the bearing rings be caused. These are transferred to the strain gauges and generate resistance changes that are made with a bridge circuit be evaluated. The running force measurement bearing is created at the bridge exit an AC voltage, the RMS value proportional to the attacking Strength is.  

Disadvantageously, strain gauges can only be used to determine Effects of forces on components that cause elongation, compression or cause torsion. A measurement of forces selectively under the Career with strain gauges is disadvantageous only for rotating ones Components possible. Furthermore, the application of strain gauges is required exact and careful handling and thus causes one costly installation.

From DE-OS 27 46 937 a force measuring bearing is known, in which Main strain zone of the bearing rings two strain gauges in um catch direction of one of the bearing rings are arranged. Both strain gauges strips are interconnected to form a half-bridge and contribute to Output twice the output signal. This will be causes in the load zone of the bearing ring under a roller a material expansion and a mate between the rolling elements rial upsetting arises. The well-known version is intended for the Use of rolling bearings that rotate at a high speed and thus many voltage amplitudes per unit of time to the one with the deh Supply measuring strips related measuring system. Disadvantageous this well-known force measuring bearing offers no possibility of short-term Determine load changes exactly because these few are relatively high Peak values are strongly integrated.

The invention has for its object to a force measuring device create, which requires low manufacturing costs, a easy handling enables itself through a wide range of applications distinguished and is suitable for large series use, an accurate Measurement guaranteed, inexpensive to use and predetermined Installation conditions can be adjusted.

Another task is one with a rolling bearing to create related force measuring device in the distance re, components related to the measuring device are integrated.

This object is achieved with the characterizing parts of claims 1 and 19 solved.  

The force measuring device according to the invention is set as a force measuring film formed sensor element, which advantageously with a profile thickness between 0.02 and 0.7 mm can be used. The force gauge can in different geometric shapes and thus the Installation conditions are adjusted, d. H. the load cell is in any recesses on roller bearings or in with roller store related or enclose the whole camp Intermediate links can be used. The force measuring device according to the invention can be advantageously combined with conventional series roller bearings, whereby this within the rolling bearing contour, in particular in a groove can be brought. The force measuring foil also provides a robust, easy to use, inexpensive, have a long service life de Force measuring device, which for many applications of rolling storage can be used, and which is particularly suitable for large series use. The force measuring foil according to the invention can thus be conditioned due to the small installation space and the measuring accuracy, especially in automotive technology that meet the need for simple, robust force measuring bearings. The force measurement is advantageous foil used in manual gearboxes for indirect torque measurement via a force determination on the bearings of the gear shafts, which, for example, enables automatic transmission of automatic transmissions ben can be optimized. With the sensor element according to the invention advantageously the power conducted through or via a gear shaft as well as change in performance can be determined.

The force measuring foil according to the invention is advantageous both for detection solution of a static as well as a dynamic force measurement bar. The force measuring film is also independent of the installation position, i. H. can be used in the axial and radial direction for force measurement, the force can be applied directly or indirectly. The film is advantageously constructed in such a way that it does not have another Installation protection is required, but e.g. B. immediately between two forces acted upon components can be used.

The force measuring foil integrated in the force measuring bearing according to the invention, which can also be called a film sensor, consists of two together menlaminierter polymer layers, the one layer with comb-like  other electrodes is coated, and on the other layer a resistance material is applied. If the sensor with a When the force is applied, the resistance material closes the electrodes more or less parallel. With increasing pressure load the Resistance defines. The pressure-dependent change in resistance can can be precisely determined with the help of evaluation electronics.

Another advantage is that the force measurement according to the invention film has a long service life and a feedback from Sound or harmonic frequencies is immune. Because the force measuring film consists of two laminated polymer layers, the one with the Electrodes and the resistance material coated sides in the Center together so that the contact fingers pass through the resistor If the material is connected in parallel, the load cell is effective protected against moisture and chemicals. That is further Force measuring device can be used effectively in a wide temperature range range from -30 ° to 170 ° C, which thus compares the temperature range bar in which rolling bearings can be used.

The force measuring bearing according to the invention advantageously enables a force division by the force measuring sheet flat with the housing, for. B. in a groove is inserted, and this defines or Kraftbe limits is applied. This is a predeterminable force limit tongue for the force measuring foil possible in the z. B. the housing with the A larger proportion of force is applied to protect the sensor element before an overload or destruction.

In one embodiment of the invention, the sensor according to the invention is element inserted in an inner ring or an outer ring of the rolling bearing can, which advantageously the outer contour of the rolling bearing not changed. It is advisable to do this with a radial groove in the outer ring or insert the inner ring of the rolling bearing to accommodate the sensor element or this in an axial recess of the inside or outside insert ring of the rolling bearing.

Another design option of the invention provides that To design the sensor element as an axial disk, for example as a circle  washer, which is axially between a rolling bearing and a shaft or housing section can be used. It makes sense to do that Adjust the axial disc of the contour of the inner or outer ring of the rolling bearing sen.

Alternatively, according to the invention, a sensor element can be used come, which is arranged sleeve-shaped on the outer ring of the rolling bearing net or inserted into the inner bore of the rolling bearing inner ring.

In a further embodiment of the invention, the sensor element is in a bushing integrates the radial distance between the outside ring of the rolling bearing and a housing or the inner ring and one Wave bridged. These solutions advantageously offer the use of a series rolling bearing without mechanical reworking a bearing ring for introducing the sensor element according to the invention tes.

In a further embodiment of the inventive concept, the Radial section of sensor elements on the outer circumference of the rolling bearing or arranged on the inside of the rolling bearing facing the shaft net. By introducing various sensor elements with a Central evaluation electronics can be connected to an accurate error compensated signal acquisition is carried out in connection with a comparison possibility to determine the main direction of stress of the rolling camp. The accuracy of the force measurement can be further improved the by the sensor elements alternating between the bearing and the bearing outer ring are arranged and the same angular window be covered.

The sensor element according to the invention is advantageously also in a Load cell can be used, which means that the Sen sorelementes is possible, so this before overuse to back up. For this purpose, a structure is preferably provided in which the Force measuring foil against external influences and against impermissibly high force is protected.

This is underscoring the wide range of variations  Sensor element for force measurement when using as an axial disc-shaped intermediate member advantageous, in an axial, circular recess can be used, which is simple, inexpensive mechanical processing can be produced. A Another embodiment provides that, for example, selectively a plurality of sensor elements arranged on a side surface of the intermediate member are not. These can be of various geometrical designs and in the pontic must be inserted. It offers itself, the strength measuring foil, the sensor element, e.g. B. circular, square, in a rectangular shape, as well as in any other design to execute. The invention further provides one or more sensors to arrange elements in or on the pontic. The pontic is advantageously provided with a rotation lock to avoid a Damage to the sensor element and the connecting cable the connecting cable the task between the sensor element and one Evaluation electronics to create a connection.

Another idea of the invention provides for the formation of a Zwi limb, which has two segments that point to each other other facing pages with at least one matching Aus Acceptance is provided for receiving a sensor element that works so sam is used protected.

An intermediate member formed from two segments can be further configured be tet by an arrangement in which at least one segment on adjacent segment is guided radially and one or both to each other are axially displaceable, whereby an axial force occurs finally on the sensor element enclosed by the segments can be transferred to determine the axial force.

Alternatively, the segments can also be designed according to the invention in such a way that after reaching a predetermined axial displacement this to the system come and so the enclosed sensor element with a dosed or force-limited axial force can be applied.

In a further embodiment of the intermediate link, these are the Pre-stressed segments including sensor element. Before  This zero voltage can partially achieve a switching zero travel be, resulting in a faster response time than that of a load cell trained sensor element is accessible. The so used Force measuring foil advantageously relieves the user from having one Exchange of the sensor element a recalibration or signal transducer to have to carry out rigorous interventions.

The miniaturization of the force measuring device according to the invention a sensor element is also provided which, in addition to a Measured value acquisition is further provided with a measured value preparation. The idea of the invention advantageously provides for a microprocessor forms a unit with the sensor element, so for special one construction cases of rolling bearings, for example immediately upon reaching or A safety controller itself exceeds force limit values actively activate, or transferred to automotive automatic transmission, a triggers automatic switching.

For transmission of measured values between the sensor element (force measuring foil) and evaluation electronics are used for connecting cables with small lines cross sections, which are advantageous due to small recesses or bores can be guided and thus take up little space, protected wiring is possible.

If a rotating sensor element is used, further inventions are made According to the invention, a sliding contact is provided, via which a signal via can be carried out from the force measuring foil for processing the measured values.

According to the invention is further a contactless transmission of the Sensor element triggered signals are provided, both for rotating and also for sensor elements arranged in a fixed position.

The sensor element, the force measuring foil, can advantageously be different be inserted into a groove or recess, d. H. loosely turned on lays or be glued. This gives the user a wide range of options given.

Further features of the invention are the subject of the following  Description as well as the graphic representation of various Embodiments. Show it:

Fig. A radial roller bearing arranged in connection with different 1a to 5b in a half-section or a set of sensor elements;

FIG. 1a inserted in the bearing outer ring, the outer contour of the bearing does not border sensor element;

FIG. 1b is inserted in a bearing inner ring sensor element;

FIG. 2a shows an axially outer ring of the radial rolling bearing inte tes, the outer contour not border sensor element;

FIG. 2b shows an axially inserted in the inner ring sensor element;

Fig. 3a, a side inserted in the outer bearing ring sensor element;

FIG. 3b ment a laterally translated to the bearing inner ring Sensorele;

Fig. 4a a radially surrounding bushing connected to a sensor element used in the bearing outer ring;

Fig. 4b a built between the bearing inner ring and an axis bushing and a sensor element which is integrated in the La gerinnenring;

Figure 5a is an inserted on the outer ring, the axial width of the bearing-masking sensor element which is surrounded by a bushing.

Fig. 5b the radial distance between an axle and a bearing ring bridging sensor element;

FIG. 6a, a rotatably mounted to the outer ring Sensorele ment;

FIG. 6b shows, in contrast to FIG. 6a, a rotationally rigidly arranged sensor element between the bearing outer ring and a housing;

Fig. 7 is designed as a load cell intermediate member, in which a sensor element is inserted as a thrust washer;

FIG. 8 shows a variant of the intermediate link shown in FIG. 7 with a force limitation;

FIG. 9 shows an enlarged illustration of the detail "Z" from FIG. 8;

FIG. 10a is an axially translated on the intermediate member sensor element;

Fig. 10b is a sensor element which is axially inserted in a pointing towards the center of the intermediate member recess;

Figure 11a, an intermediate member in the form of a disc having a local axial recess.

11b shows a variant of the sensor element arrangement shown in FIG. 11a.

Fig. 12a to 15b show different versions of intermediate members, each of which is formed from two segments, which include a sensor element in the middle;

FIG. 16 is a combined radial-thrust bearing, wherein the thrust bearing Zvi and a shaft shoulder a Sen rule sorelement as axial disc is provided;

Figure 17 is a storage in which the sensor element is inserted between the thrust bearing and the housing.

. FIG. 18 is a bearing to a rotatable Fig housing with the sensor element is used in the different 17;

FIG. 19 is a shown in the side sectional view of the radial rolling bearing, wherein the sensor elements are inserted within the contour of the bearing outer ring;

Fig. 20 shows a variant of Fig. 19 in which the sensor elements are arranged in the bearing inner ring.

A first exemplary embodiment ( FIG. 1a) shows a radial roller bearing 8 in the form of a ball bearing, provided with the inner ring 13 and the outer ring 14 , which are connected via roller bodies 9 . Radially in the outer ring 14 , the outer contour does not exceed the sensor element 10 a. A signal transmission of the measured value acquisition carried out by the sensor element 10 a takes place via connecting cable 19 to a measured value processing not shown in FIG. 1a.

In contrast to FIG. 1a 1b inserted in the inner ring of the Radi allagers 8 sensor element 10 is shown in Fig. B provided which also has connection cable 19. The sensor elements 10 a, 10 b used in FIGS . 1 a and 1 b are used for detecting radial forces which are introduced into or via the radial bearing 8 .

To detect axial forces serve presented in FIGS. 2a, 2b Darge sensor elements 10 c, 10 d, the differing ring in the outer each other 14 or in the inner ring 13 of the radial roller bearing 8 are inserted and also the outer contour of the radial bearing 8 is not, or only insignificantly inserted beyond.

FIG. 3a shows an axially laterally interposed on the outer ring 14 sensor element 10 e, which is arranged within the contour of the radial bearing 8 at. A variant thereof, Fig. 3b illustrates, in which the sensor element 10 f on the inner ring 13 likewise axially the entire contact surface of the inner ring is attached covering 13.

From Fig. 4a a sleeve shows 26 that a radial distance between the outer ring 14 of the radial bearing 8 and the housing 3 via bridged and at the same time the sensor element is 10 g fully axially overlaps.

FIG. 4b shows a between the inner ring 13 of the radial bearing 8 and the axis 5 inserted bushing 25, through which the sensor element is enclosed 10 h. The solutions shown in FIGS . 4a and 4b advantageously result in a preassembled Kraftmeßeinrich device in which the sensor element can be mounted protected on all sides.

The combination of series rolling bearings in connection with the force measuring device according to the invention is shown in FIGS . 5a to 5b, ie the sensor elements are mounted on the bearing rings of the radial bearing 8 without these having mechanical processing for receiving the sensor element.

Fig. 5a shows a sensor element 10 i, which surrounds the outer circumference of the outer ring 14 and is inserted into a bushing 26 which bridge the radial distance between the outer ring 14 and the housing 3 . In Fig. 5b is a sensor element 10 j between the inner ring 13 and the axis 5, wherein the sensor element 10 j the entire axial width of the inner ring 13 covers.

A sensor element 10 k rotating with the housing 3 and the outer ring 14 is shown in FIG. 6a. The rotationally fixed between the housing 3 and the outer ring 14 fitted sensor element 10 k is provided on one side of the radial bearing 8 with a bevel on which a sliding contact 21 is provided for the connecting cable 19 . A torsionally rigid sensor element 10 l between the outer ring 14 and the housing 3 , on the other hand, is shown in FIG. 6b.

Fig. 7 shows the intermediate member 18, which is formed from the thrust washers 34, 35 and a connecting on the radially outer periphery of both axial discs bracket 31. The thrust washer 35 is rich in the radial inside with an overlap 32 which engages in a recess of the thrust washer 34 . The axial disks 34 , 35 have a recess on the inner side facing each other for receiving the sensor element 20 a and thus form a load cell 12 .

In Fig. 8, the intermediate member 24 is shown, which is provided similar to Fig. 6 with axial disks 34 , 35 , each of which alternately have an overlap 32 , 33 , with which the adjacent axial disk be covered radially and axially and is snapped together. On the centrally mutually facing side of the thrust washers 34, 35 a recess for receiving the sensor element 20 is provided b. The intermediate member 24 is also designed as a load cell 12 , wherein the sensor element 20 b is used with limited force, ie after overcoming an axial displacement of the axial disks 34 , 35 , - as a result of a build-up of force - which corresponds to the size of the gap 36 , there is a system both axial disks and thus to a limited, greatly reduced further pressurization of the sensor element 20 b, with a further pressure increase, depending on the materials, the load capacities.

The position of the gap 36 is further illustrated in FIG. 9 by an enlarged representation of the detail "Z". The sensor element 20 b is then arranged so that it is initially exposed to the entire force. After overcoming the gap dimension 36 , the axial disks 34 , 35 come into contact and thus a division of the force if this increases further.

A laterally over the entire surface of the element to thrust washer 27 is interposed sensor 20 c, FIG. 10a, which is provided with radially outwardly directed connecting cable 19. From Fig. 10b, an axial disc 27 can be removed, in which the likewise axially attached sensor element 20 d is radially surrounded by an approach connected to the axial disc 27 .

Figs. 11a and 11b respectively show the arrangement of a Sensorele mentes 20 e, 20 f and an axial recess 17 inserted in the axial disc 27th Referring to FIG. 11a, the sensor element 20 is introduced in the mid-e-sized area of the axial disc 27th The arrangement of the sensor element 20 f is shown in FIG. 11 b, which is inserted axially up to the circumferential surface of the axial disk 27 .

FIGS. 12a to 15b each show two segments which are axially joined together and which include a sensor element.

Fig. 12a shows the intermediate member 42 , which is formed by the segments 28 , 29 , which are each provided with an oppositely attached bend, which point in the direction of the adjacent segment and bear against it. The bend causes the formation of a circular annular cavity in which the sensor element 20 g is inserted. The intermediate member 43 according to FIG. 12b is composed of the segment 28 , which has an axial recess on one side for receiving the sensor element 20 h, which is laterally followed by the segment 29 in the form of an axial disk.

From Fig. 13a, the intermediate member 44 is produced, in which the Seg ment 37 has a bend on the radially inside to the adjacent segment that serves for axial guidance of the segment 38th A recess in the segment 37 serves to receive the sensor element 20 i, which extends radially from the bending of the segment 37 to the middle zone of the segment 38 . In the intermediate member 45 in FIG. 13b, the segment 37 has an angled portion in the radially outer region, which serves as an axial guide for the segment 38 , which is designed as a continuous axial disk. Starting from the bend of the segment 37 , directed radially inwards, the sensor element 20 j is inserted in an annular recess.

K Figs. 14a, 14b show the intermediate members 46, 47, elements in the sensor 20, 20 are inserted l, the axial abutment surface match is consistent with that of the segments 38. In both figures, the segment 38 with the associated sensor element 20 k, 20 l is guided on the leg of the angled adjacent segment 37 . The bend is arranged in Fig. 14a at the inward end and in Fig. 14b at the outward end.

Two go in cross section is L-shaped in FIG. 15a designed Seg elements 37, 38 projecting radially displaced and oppositely are joined together to form a mutual axial guide, the segments 37, 38, the sensor element include 20 m and share the intermediate member 48 form.

In Fig. 15b, the intermediate member 49 is shown, in which the sensor element 20 l is inserted exclusively in a radial recess in the segment 37 . The adjacent segment 38 is provided on the outer circumference with an angle covering the segment 37 .

In Fig. 16, the mounting of a shaft 4 is shown in the housing 3, wherein the bearing comprises a radial bearing 8 and the thrust bearing. 7 To determine the axial force, the sensor element 20 o is used, which is designed as an annular axial disk and which bears against the shoulder 39 of the shaft 4 . Between the rolling elements 9 of the axial bearing 7 and the sensor element 20 o, the axial disk 27 is inserted, which is provided with an anti-rotation device 16 extending into the shoulder 39 .

As an alternative to that employed in Fig. 16 sensor element 20 o. Figure 17 shows a between the bearing housing 11 and the housing 3 employed sensor element 20 p.

In Fig. 18 a rotating with the housing 3, sensor element 20 is depicted o. The slip ring contact 21 serves for signal transmission from the sensor element 20 g to the connecting lines 19 . The radial and axial bearing between the axis 5 and the housing 3 otherwise corresponds to most of the solutions shown in FIGS . 16, 17.

The sections in the outer ring 14 or in the inner ring 13 sensor elements 30 a, 30 b shown in FIGS. 19 and 20. The sensor elements are the outer contour of the radial bearing 8 not exceeding tend inserted in the bearing rings and can thereby over the entire axial width of the radial bearing 8 extend or be let in locally in the wing. The arrangement of the sensor elements 30 a and 30 b is preferably provided such that the same angular window “α” is covered over the circumference of the radial bearing 8 . According to the invention, it makes sense that alternate sensor elements 30 a, 30 b are provided with the same angular windows that are inserted in a radial bearing 8 .

Reference numerals

3 housing
4 wave
5 axis
7 thrust bearings
8 radial bearings
9 rolling elements
10 sensor element (axial)
11 bearing housing
12 load cell
13 inner ring
14 outer ring
16 anti-rotation lock
17 recess
18 pontic
19 connecting cables
20 sensor element (radial)
21 slip ring contact
22 segment
23 segment
24 pontic
25 socket (inside)
26 socket (outside)
27 axial washer
28 segment
29 segment
30 sensor element
31 bracket
32 overlap
33 overlap
34 axial washer
35 axial washer
36 gap
37 segment
38 segment
39 shoulder
42 pontic
43 pontic
44 pontic
45 pontic
46 pontic
47 pontic
48 pontic
49 pontic

Claims (21)

1. Rolling bearing designed as an axial or radial bearing, provided with at least one bearing ring for guiding rolling bodies, which has a force measuring device, characterized in that the bearing ring directly or the rolling bearing indirectly via an intermediate member with a sensor element ( 10 a to 10 l; 20 a to 20 o; 30 a, 30 b), formed as a Kraftmeßfo lie covering all types of force, is connected. 2. Rolling bearing according to claim 1, characterized in that the force Measuring film comprises two polymer layers, one polymer layer with electrodes and the other with a resistor are. 3. Rolling bearing according to claim 1, characterized in that in an inner ring ( 13 ) or outer ring ( 14 ) embedded sensor element ( 10 a to 10 h) is used. 4. Rolling bearing according to claim 1, characterized in that an intermediate disc ( 27 ) is used as the intermediate member, which is used between an axial bearing ( 7 ) and the sensor element ( 20 o). 5. Rolling bearing according to claim 1, characterized in that between the outer ring ( 14 ) and a housing ( 3 ) or between an inner ring ( 13 ) and a shaft, the sensor element ( 10 i, 10 k, 10 l) is arranged. 6. Rolling bearing according to claim 1, characterized in that a radially enclosing the outer ring ( 14 ), the sensor element ( 10 i) leading bushing ( 26 ) is provided. 7. Rolling bearing according to claim 1, characterized in that an inter mediate the inner ring ( 13 ) and the shaft ( 4 ) or an axis ( 5 ) inserted bushing ( 25 ) is provided. 8. Rolling bearing according to claim 1, characterized in that sections, radially on the inner ring ( 13 ) or the outer ring ( 14 ) sensor elements ( 30 a, 30 b) are arranged. 9. Rolling bearing according to claim 1, characterized in that a load cell ( 12 ) formed from axial disks ( 34 , 35 ) is provided, into which the sensor element ( 20 a, b) is integrated. 10. Rolling bearing according to one of the preceding claims, characterized in that the sensor element is inserted into a recess of an axial disc ( 27 ). 11. Rolling bearing according to one of the preceding claims, characterized records that an intermediate member secured against rotation is inserted which is connected to the sensor element. 12. Rolling bearing according to one of the preceding claims, characterized in that one of the segments ( 28 , 29 ) joined together, the sensor element ( 20 g, 20 h) including intermediate member ( 42 , 43 ) is used. 13. Rolling bearing according to one of the preceding claims, characterized in that one of the segments ( 37 , 38 ), the sensor element ( 20 i to 20 n) including the intermediate member ( 44 to 49 ) is inserted, at least one segment from adjacent segment is guided radially and at least one segment is axially displaceable. 14. Rolling bearing according to one of the preceding claims, characterized in that the sensor element ( 20 g, 20 n) including Segmen te ( 28 , 29 ) come to rest after reaching a predetermined axial displacement. 15. Rolling bearing according to claim 1, characterized in that the segments te and the sensor element biased, non-positive connection stand. 16. Rolling bearings, designed as axial or radial bearings, provided with at least one bearing ring for guiding rolling elements, which is a force Has measuring device, characterized in that a sensor element is used, which in addition to a measured value recording with a Measurement value preparation is provided. 17. Rolling bearing according to claim 16, characterized in that the Sen sensor element forms a unit with a microprocessor. 18. Rolling bearing according to one of the preceding claims 1 to 17, characterized in that connecting cables ( 19 ) are provided for the measured value transmission between the sensor element and a measured value preparation. 19. Rolling bearing according to one of the preceding claims, characterized in that a rotating sensor element ( 10 k, 20 g) is used, the connecting cable ( 19 ) having a sliding contact ( 21 ). 20. Rolling bearing according to one of the preceding claims, characterized in that a non-contact transmission of the sensor element ( 10 a to 10 l; 20 a to 20 g; 30 a, 30 b) is provided signals. 21. Rolling bearing according to one of claims 1 to 19, characterized in that the sensor element ( 10 a to 10 l, 20 a to 20 g, 30 a, 30 b) loose or fixed in a groove or recess in the bearing ring or in between link is inserted.