WO2009079979A1 - Ensemble palier - Google Patents

Ensemble palier Download PDF

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Publication number
WO2009079979A1
WO2009079979A1 PCT/DE2008/002050 DE2008002050W WO2009079979A1 WO 2009079979 A1 WO2009079979 A1 WO 2009079979A1 DE 2008002050 W DE2008002050 W DE 2008002050W WO 2009079979 A1 WO2009079979 A1 WO 2009079979A1
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WO
WIPO (PCT)
Prior art keywords
segments
bearing
segment
angle
arrangement according
Prior art date
Application number
PCT/DE2008/002050
Other languages
German (de)
English (en)
Inventor
Sven Claus
Claus Müller
Original Assignee
Schaeffler Kg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Kg filed Critical Schaeffler Kg
Publication of WO2009079979A1 publication Critical patent/WO2009079979A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/62—Selection of substances

Definitions

  • the invention relates to a bearing assembly, in particular with large dimensions, such as a rolling bearing, a sliding bearing or a linear system, wherein at least one bearing element of the bearing assembly, such as a bearing ring, is created in segmental design.
  • elements such as rolling bearings, linear systems and plain bearings in large dimensions, in rolling bearings i.d.R. greater than 300 mm, needed.
  • Such large bearings or - elements are usually made of conventional bearing steel.
  • the elements of rolling bearings, linear systems and plain bearings are subject to very high demands, for example with respect to corrosion resistance to corrosive media such as moist, salty air, seawater, acids, lyes and cleaning chemicals.
  • Conventional bearing steels are generally not corrosion-resistant for many of the target applications and therefore not suitable.
  • galvanically applied corrosion protection coatings for example based on Cr or Zn-Fe, known as corrugated coatings, are used.
  • Coatings etc. applied or used corrosion resistant rolling bearing steels such as Cronidur or 440C.
  • these bearing elements as they should be used in the above applications, also made appropriate requirements with respect to media lubrication. Particularly aggressive and / or corrosive media are used, for example, in the field of fluid handling or chemical plants instead of conventional lubricants (grease, oil) as a "lubricant" used.
  • roller bearings linear systems and plain bearings in terms of dry running suitability, if they are used, for example, in the food industry, in air handling, in pumps or in vacuum.
  • so-called tri-dural, DLC or TiN layers are deposited as corresponding wear protection layers by means of PVD / CVD methods.
  • ceramic rolling elements are used in combination with corrosion-resistant bearing steels.
  • a special requirement placed on elements for long-term use in humid atmospheres, water and marine applications relates to the resistance to fouling (eg by organisms, algae, fungi, bacteria, etc.). Resistance can be increased by means of coatings and coatings, for example based on silicone resins or epoxy resins, as well as other, in some cases copper-containing, organic compounds.
  • the coating methods mentioned in the preceding sections and, as regards the base material, production methods and heat treatment methods can not be used, or only conditionally, for large bearings, in particular due to the limited size of the corresponding systems.
  • the corresponding systems are usually only suitable for bearings that are smaller than about 1000 mm.
  • galvanic coatings increases the technical equipment and thus the cost of the coating of large bearings with increasing storage large, including the handling, disproportionately strong.
  • the elements are also subject to requirements in terms of current insulation and resistance to aggressive media, for example, when used in the field of railway storage, product electronics or in process engineering.
  • ceramics is used as a material, eg thermally sprayed ceramic insulation layers, eg of AL 2 O 3 , on the outside of bearing rings, as well as ceramic rolling elements, all-ceramic bearings (rings and rolling elements) used in small dimensions or used.
  • Ceramic bearing rings are due to production and therefore cost limited available only in limited storage size.
  • the diameter of bearing rings made of ceramic are generally much smaller than 300mm.
  • the above-mentioned requirements can exist either individually or in combination, for example in large-scale bearings for long-term use in liquid, corrosive media without seals and without protective lubricant, e.g. for use in particular in the field of chemical and energy engineering, for example in the field of the extraction of fossil fuels (for example oil platforms), power stations based on renewable energies, especially in the fields of wind power onshore and offshore and maritime energies such as, for example Sea water power plants. ,
  • the object underlying this invention is the provision of improved marketable slewing bearings.
  • This rolling bearing has the disadvantage that the segments are difficult to attach, since they are initially placed with their flat sides (butt side surfaces) only together, to then be attached via a clamping ring. In this case, the juxtaposition of the segments in particular becomes more difficult the larger the bearing is and the greater the number of segments.
  • the described segmented rolling bearing is material / coating related not to the o. G.
  • the design of the segments is not designed directly for the requirements / loads in the rolling contact, and a major disadvantage of the embodiment claimed in DE 10 2004 058 905 A1 is the necessity of positioning and fixing via a special design Without the latter, the bearing in itself does not acquire "stand-alone" functionality and the intended universality of the solution can not be achieved.
  • a housing or a corresponding surrounding construction mean i.a. additional space requirements, mass, complexity, as well as material, manufacturing and logistics costs, which in particular in relation to the bearing sizes mentioned here represent significant disadvantages.
  • EP 1 302 683 B1 further discloses a bearing for supporting a rotor of a wind turbine.
  • the bearing has a two-part inner ring and an outer ring, between which rolling elements are arranged. All rings are divided over the circumference into four segments each.
  • a U-shaped housing takes on the segments of the two inner rings, wherein the segments via an eccentric against the housing be braced by means of screws. Similarly, the segments of the outer ring are attached.
  • Such a bearing has the disadvantage that the attachment of the segments is complicated and expensive and also requires additional space, since an eccentric is used to secure the segments via screws to the housing.
  • the joints of the segments are interpreted in both referenced writings such that a rolling element with line contact (eg cylindrical pendulum or tapered roller) rolls over the joint in such a way that the rolling element rolls over the impact gap over the entire length of the line contact and thereby a small piece
  • a joint of this type represents a significant risk of wear since, during use (under bearing load), the edges of the joint and the rolling elements in the near-surface region are subjected to an increased load Stress peaks lead to premature wear and thus to a reduction in bearing life This results in significant disadvantages, as stated above.
  • a bearing assembly is provided with at least one bearing element, wherein the bearing element is divided into at least two, three, four, five or more segments, but in particular a plurality of segments, wherein two adjacent segments at their ends respectively detachable or non-detachable by positive engagement (eg pinning) and / or adhesion (eg screwing) and / or material bond (eg soldering, welding) are interconnected.
  • positive engagement eg pinning
  • adhesion eg screwing
  • material bond eg soldering, welding
  • a bearing arrangement is provided, with at least one or more bearing elements, wherein the bearing element is subdivided into at least two, three or more segments, wherein two adjacent segments are connected to each other at their ends in a form-fitting and / or materially bonded manner and / or are directly connected to each other non-positively, the ends of this example directly screwed or pinned together.
  • Such a connection of two adjacent segments has the advantage that the segments support each other and a self-supporting and independently functional large bearing ring is formed.
  • a special housing or a special environment construction are not needed but can also be used in principle.
  • no clamping rings or eccentric o.a. required so that a large warehouse can be produced with a small space, which is on the order of that of a conven- tional camp.
  • a key advantage is that the segmented design of the bearing assembly very large bearings, such as large bearings with a diameter of 300 mm and larger up to a diameter of, for example, 5000 mm and beyond can be provided, the o.g. meet high requirements, since the appropriate process techniques for the required materials and coatings for the individual segments can be used.
  • the segment size associated with the (target) bearing size, their number and their design (design) depends, for example, on the overall bearing size (due to design of the plant, etc.) as well as the material selected and the manufacturing process (heat treatment, coating, so).
  • Embodiments of the invention are particularly advantageous in that the division of the total circumference in equal or unequal sized segments takes place (angle ⁇ , sh following Fig. 1), and / or by diagonal course of the joint line (angle ß, sh following Fig. 2) a the camp gentle overrunning of the joints between the segments and / or a supporting action of the segments with each other (angle Y, sh following Fig. 4) is achieved.
  • the segments are formed together plugged in a positive connection of the segments.
  • at least one of the segments has at least one projection and the segment to be connected thereto at least one correspondingly shaped recess or recess for receiving the projection.
  • the projection and corresponding to the recess or depression are optionally provided with an undercut.
  • the segmentation according to the invention also proves, with regard to the possibility of cost-effective repair, if possible without replacement of the entire element, for example of the entire rolling bearing.
  • individual, damaged segments can be exchanged.
  • the segments for screwing or pinning by means of a pin or a bolt are formed so that they can be plugged together, wherein the ends of the assembled segments axially and / or radially screwed directly or pinned together.
  • bearing elements for example, a roller bearing of a rolling bearing or a sliding bearing ring of a sliding bearing, an axial disc or a thrust bearing or a guide of a linear guide.
  • rolling bearing rolling bearings can be used with known from the prior art arrangements with and without cage, or with known from the prior art rolling bearing bodies.
  • FIG. 1 shows a detail of a bearing ring of a bearing according to a first embodiment of the invention, wherein segments of the bearing ring are positively connected with each other;
  • FIG. 2 shows a schematic view of different graduation levels for a ring segment of a bearing according to the invention, which has a raceway insert on one side by way of example;
  • FIG. 3 shows a section of a further segment for a bearing ring of a bearing according to a first embodiment of the invention
  • FIG. 4 shows a section of a bearing ring of a bearing according to a second embodiment of the invention
  • Fig. 5 shows a detail of a bearing ring of a bearing according to a third embodiment of the invention, wherein
  • FIG. 6 is a front view of a bearing with a segmented outer ring and with a segmented inner ring, wherein different types of segmentation are performed, e.g. may be different for the inner ring and / or the outer ring, as well as within the respective ring.
  • multi-part bearing rings and linear guides or linear elements can be created in segmental design.
  • segmentation tion and the concomitant reduction in part size not only higher degrees of freedom, for example with regard to the choice of materials, coatings, heat treatments, production methods and the targeted adjustment of mechanical, electrical, electrochemical, processing and biologically effective properties, but only through the Segmentation can be used advantageously in the course of bearing manufacturing certain materials, coatings, heat treatments, manufacturing processes.
  • a large warehouse with a diameter> about 500 mm can not be produced in one piece (monolithic) of ceramic at a marketable cost.
  • an unsegmented bearing with> approx. 1000 mm size fit into commercially available PVD coating systems.
  • the segmentation according to the invention is explained below using the example of bearing rings. It is also applicable but also for example on linear guides or linear systems, thrust bearings, etc.
  • the bearing rings of the invention can be used as an inner and / or outer ring.
  • a section of a bearing or a bearing arrangement is shown. More specifically, a section of a bearing element or a bearing ring 10 of the bearing arrangement is shown, according to a first embodiment of the invention.
  • the bearing element or the bearing ring 10 is divided over its circumference into a plurality of segments 12.
  • a bearing ring 10 can consist of, for example, two, three, four, five or more segments 12.
  • Fig. 1 In the detail in Fig. 1, for example, three segments 12 of the bearing ring 10 are shown.
  • the segments 12 are positively connected with each other to form a circumferential bearing ring 10.
  • a segment 12 has in the example shown on each side of a projection 14, wherein the projection 14, for example, has a T-like shape and forms an undercut. In principle, however, the projection 14 can also have any other shape or any shape and be formed with or without an undercut.
  • the two other segments 12 have a correspondingly shaped recess 16 into which the projection jump 14, as shown in Fig. 1, for example, is taken substantially flush, ie there is essentially no or only a minimal gap between the projection 14 and the recess 16.
  • a defined gap occurs between the projection 14 and the recess 16. This can optionally be closed later with a suitable filler.
  • a recess 16 may also be formed a recess 18 in which the projection 14 is received, as indicated in Fig. 1 with a dashed line.
  • the recess 18 may be provided, for example, on the side which forms no running surface of the bearing, but it may also be formed on the side of the bearing surface of the bearing, for example on the inside of an outer ring of a rolling bearing or on the inside of an inner ring of a rolling bearing.
  • the recess 18 may be arranged depending on the function or purpose on the tread of the camp or on a Brocklauff pool of the camp.
  • the segments 12 with the recess 16 can be provided on the other side, for example, again with at least one recess 18 and / or with at least one corresponding projection 16, which in turn engages in a recess 18 of an adjacent segment.
  • the segments 12 can be plugged together, for example, to form a circumferential bearing ring 10, the segments 12 being held together by the positive connection of the projection 14 and the recess 16 or recess 18.
  • the dividing planes in the direction of rotation for, for example, at least three or more segments 12, which form a bearing ring 10, are selected with respect to the bearing ring 10 so that partial ring segments 12 are formed which cover, for example, a rotational angle ⁇ of, for example, 0 ° ⁇ ⁇ 180 ° ,
  • the rotation angle ⁇ can vary from segment 12 to segment 12 or be the same.
  • the sum of the angles of rotation ⁇ of all segments 12 for a circumferential bearing ring 10 results in 360 °.
  • FIG. 2 now shows a schematic view of different graduation planes for a ring segment 12 and an exemplary integrated track insert 38 of an inventive bearing ring 10 of a bearing arrangement.
  • angles of ß ⁇ 90 ° (case 2) or ß> 90 ° (case 3) are possible.
  • the angle ⁇ may be in a range of 30 ° ⁇ ⁇ ⁇ 90 °.
  • the angle ⁇ can lie in a range of 90 ° ⁇ ⁇ 150 °.
  • the invention is not limited to these angular ranges for the angle ß.
  • the angle ⁇ can also be greater than 150 ° or less than 30 °.
  • a pitch angle of, for example ß ⁇ 90 ° (Case 2 and 3), as described above, a gentle bearing overrolling of the joints between the segments 12 can be achieved.
  • the Winkle ß here forms a diagonal.
  • the angle ⁇ at both ends 26 of the segment 12 can be made the same size or different sizes. The same applies to the angle ß of two adjacent segments 12.
  • the segments may have an equal angle ß or two different sized angle ß.
  • Fig. 3 is a detail of another embodiment of a segment 12 is shown for a bearing ring 10 according to the first embodiment of the invention.
  • the segment 12 on each side or each end 26, for example, two projections 14, for example have the shape of lugs.
  • the projections 14 are received in correspondingly shaped recesses or recesses of an adjacent segment (not shown).
  • the projections 14 on the two sides of the segments 12 need not be formed identical.
  • the segment 12 has an angle ⁇ of preferably ⁇ ⁇ 90 °, as described above with reference to FIG. 2, and forms a diagonal 28 with respect to the end face 20 Roll over can be achieved.
  • FIG. 4 furthermore shows a section of a bearing ring 10 of a bearing arrangement according to a second embodiment of the invention.
  • at least one side end 22 or both side ends 22 of the segment 12 may not only be aligned perpendicular to the side edge 24 of the segment 12, but may also be inclined relative thereto.
  • the angle y indicates the angle at which the segments 12 are set or joined together in the radial direction or in the circumferential direction.
  • the segments 12 of the second Embodiment as the segments 12 of the first embodiment, for example, positively connected to each other via a connection of a corresponding projection and a recess or a recess which receives the projection.
  • the side ends 22 of the segments 12 of the first embodiment can also be arranged at an angle Y ⁇ 90 °, as in the second embodiment.
  • angles Y at both ends 26 and side ends 22 of the segment 12 can be the same size as shown in FIG. 4 or different sizes (not shown).
  • the 12 segment shown in FIG. 4 forms a kind of trapezoidal shape, for example, whereby the segment 12 can also have any other shape.
  • FIG. 10 A third embodiment according to the invention of the segments 12 for a bearing ring 10 of a bearing arrangement is shown in FIG.
  • a section of two segments 12 of a bearing ring 10 is shown.
  • the first segment 12 has on both sides 22 in each case a depression in the form of a step 32.
  • the adjacent second segment 12 has a corresponding step 32, which is brought into engagement with the step 32 of the first segment 12, so that the two segments 12 on the end face 20 or underside, preferably on the side of the running surface, are preferably flush or flush form a flat surface.
  • a screw and / or pin connection can be provided, wherein the two segments 12 are screwed directly together, for example in the radial direction, as shown in Fig. 5.
  • the segments 12 have a corresponding one Bore 34.
  • the segments 12 are screwed together on the side of the bearing ring 10, which does not form the tread.
  • the segments 12 can not only be screwed together but also positively connected in which the depression 32 of one segment 12 forms a kind of groove 36 into which the projection 14 of the other segment 14 is inserted before the two segments 12 mit- be screwed together.
  • the groove 36 is indicated by a dashed line in Fig. 5.
  • such a positive connection can be designed as desired, as the examples according to FIGS. 1 and 3 show.
  • the third embodiment according to the invention may form with its side ends 22 a corresponding angle ⁇ or v, as previously described in detail with reference to FIGS. 2 and 4.
  • the positive connection of two segments 12, as previously shown in the examples in FIGS. 1, 3 and 4, has the advantage, in contrast to segments which are merely applied to each other, that the segments 12 hold themselves together, while the adjacent segments must be clamped in a housing so that they do not unintentionally detach from each other, for example via a clamping ring or an eccentric.
  • the segments 12 can also be connected together by a subsequent material bond, for example, by welding or soldering or bolted or pinned together directly, as shown in Fig. 5 in the third embodiment.
  • connection between the segments 12 can by positive locking, as shown in FIGS. 1 and 3, for example by means of
  • Retaining rings by traction, for example by screwing, as in Fig. 5 is shown, and / or by material closure, such as fusion welding, friction welding, soldering, gluing, etc., take place.
  • FIG. 6 shows a front view of a bearing with a segmented outer ring 40 and with a segmented inner ring 42, wherein, for example, different types of segmentation are carried out.
  • the outer ring 40 in this case has five segments 12, which are non-positively connected to each other at one or both ends 26, as previously shown in Fig. 5 on another example.
  • Three segments 12 each have a recess in the form of a step 32 on both sides 22.
  • the respective adjacent segment 12 has a corresponding step 32 which is engaged with the step 32 of the adjacent segment 12, such that the two segments 12 are here respectively on the underside, e.g. here on the side of the tread, preferably finish flush or form a flat surface.
  • a screw and / or pin connection can be provided, wherein the segments 12 are bolted directly together, for example in the radial direction, as shown in Figs. 5 and 6.
  • the segments 12 have a corresponding bore 34, wherein the segments 12 are bolted together on the end face 20 of the bearing ring 10, which does not form the tread here, for example.
  • a screw connection it is also possible to fasten the segments 12 together by means of bolts or pins, as previously described with reference to FIG. 5.
  • the angle Y 90 °.
  • the segments 12 of the outer and inner rings 40, 42 partially have the same angle of rotation ⁇ or different angles of rotation ⁇ .
  • the sum of the rotation angle ⁇ of all segments 12 results in the present case for the encircling bearing ring 10360 °.
  • segments 12 in FIG. 6 with respect to the end face 20 of the respective segment 12, at least one or both side ends 22 of the segment 12 form an angle ⁇ of the side edge 24 of the respective segment 12
  • ⁇ 90 ° or ß ⁇ have 90 °.
  • segments 12 of the outer and / or inner ring 40, 42 may also be interconnected as shown in Figs. 1 and 3, in which one end of the segment has a projection and the other end has a corresponding recess or recess which the projection is received (not shown).
  • FIGS. 1 to 5 also apply correspondingly to FIG. 6 and will not be repeated.
  • the bearing shown in Fig. 6 is purely exemplary and is intended to illustrate the various types of connection, such as positive and non-positive substantially on an example again.
  • the segments 12 and their connections with each other, ie positively, non-positively and / or cohesively can be combined as desired, wherein the segments 12 at both ends 26 may be the same or different formed or connected, depending on, for example, function or purpose.
  • the self-supporting bearings can be measure the invention, as described above with reference to FIGS. 1-6, basically also fitted in a housing or held over, for example, a ring member, a clamping ring or eccentric, but this is not necessary or necessary due to the self-supporting structure of the invention Camp.
  • the segments 12, as shown in FIGS. 1, 3, 4, 5 and 6 are optionally additionally welded together, soldered or glued. In principle, however, the segments 12 can also only be placed against each other and then welded, soldered or glued. In this case, the segments 12 need not be positively connected to each other via a projection 14 and a recess 16 or recess 18 or fastened by screwing together.
  • a resulting gap between the joined segments 12, as described above, remain open or closed by special measures, for example, by flowing Lot, adhesive, weld metal, etc. ..
  • finishing such as grinding the joined ring 10 can improve the segment - Transitions and thus the bearing performance can be achieved.
  • the design of the bearing rings according to the invention makes it possible to design the segments independently of each other as needed. This results in a corresponding ease of maintenance. Furthermore, a possibility for cost-effective repairs is created because individual segments can be easily replaced.
  • the segments 12 described above can be embodied as follows: from an uncoated base material and / or from a base material with additionally applied functional coating and / or from a base material with an edge layer produced, for example thermochemically.
  • the segmentation according to the invention of the circumference of the bearing rings 10 reduces the relevant component size for the manufacturing technology. This makes it possible in particular u.a. To make the following process technologies - individually or in combination - technically / economically available for highly loaded large bearings or long linear systems:
  • Spray compacting for the production of special alloys
  • Heat treatment e.g., 1-chamber vacuum equipment for, for example, carbon nitriding or edge-embroidering, etc.
  • Chipless production technologies such as Rolling and pressing techniques, deep drawing or similar
  • Galvanic coating techniques in all known variants i. both cathodic deposition by means of direct current and chemical deposition by means of reducing agents 7
  • Processes for the preparation of special lacquer layers, in particular fillers but also of sol-gel or nanocoatings e.g. produced by means of painting, spraying or dip coating and subsequent themal process, e.g. in a kiln for drying, curing and (partial) ceramization 8.
  • Thermal coating techniques eg flame / plasma spraying
  • Special machining technologies eg turning, milling, drilling, grinding, eroding, deep drawing etc.), especially with regard to the difficult handling of large bearings and linear elements as well as the expense of corresponding clamping devices and the accessibility during machining
  • One design variant for a specific application in aggressive media provides that the segments consist of a seawater-resistant, for example austenitic steel or a tempered steel, which is protected against corrosion and the surrounding medium with a seawater-resistant coating and the simultaneously has anti-fouling effect.,.
  • a seawater-resistant coating can be produced, for example, in the form of at least one or more nickel, copper, chromium or silver layers, for example via physical deposition (PVD).
  • segmental materials for the segments 12 are in principle, for example:
  • Oxide and / or non-oxide ceramics with sufficient fracture toughness eg based on SI 3 N 4 , SiC, Al 2 O 3 or ZrO 2 , etc.
  • Materials produced by powder metallurgy eg tool steel or austenitic steel, doped with hard materials for certain properties ( eg high corrosion resistance and at the same time high wear resistance due to a sufficiently high proportion of hard phases, etc.)
  • conventional steel and coated steel eg galvanically coated
  • a further embodiment variant envisages carrying out a material-technical functional separation within the individual segments. This can be done for example by using a likewise segmented raceway insert of another, suitable material.
  • bearing rings Due to the inventive design of the bearing rings or the linear components relevant for manufacturing, processing, manufacturing, coating, heat treatment processes and limiting geometries (eg maximum dimensions) can be significantly reduced.
  • materials and material combinations can be tailored to the application in appropriate treatment conditions and otherwise necessary compromises can be avoided.
  • according to the invention also improve the installation and repair options.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne un ensemble palier avec au moins un élément de palier (10), sachant que l'élément de palier (10) est subdivisé en au moins deux segments (12) ou en trois segments (12) ou davantage. Deux segments voisins (12) sont, à leurs extrémités, respectivement assemblés entre eux de manière amovible ou inamovible par complémentarité de forme et/ou à force et/ou par liaison de matière.
PCT/DE2008/002050 2007-12-21 2008-12-06 Ensemble palier WO2009079979A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710062145 DE102007062145A1 (de) 2007-12-21 2007-12-21 Lageranordnung
DE102007062145.2 2007-12-21

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Publication Number Publication Date
WO2009079979A1 true WO2009079979A1 (fr) 2009-07-02

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WO2014089642A1 (fr) * 2012-12-11 2014-06-19 Rotacaster Wheel Limited Coussinet d'axe
US10479136B2 (en) 2015-01-06 2019-11-19 Rotacaster Wheel Limited Wheel frame component

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DE102010008650A1 (de) 2009-08-14 2011-02-17 Schaeffler Technologies Gmbh & Co. Kg Lagerring für ein Wälzlager
DE102011087530A1 (de) * 2011-12-01 2013-06-06 Ks Gleitlager Gmbh Flachmaterialabschnitt für die Herstellung eines buchsenförmigen Gleitlagerelements sowie Gleitlagerbuchse
DE202012010830U1 (de) * 2012-05-11 2012-11-27 Schaeffler Technologies AG & Co. KG Wälzlageranordnung, insbesondere für ein Radialwälzlager
DE102012108819A1 (de) * 2012-09-19 2014-03-20 Nordischer Maschinenbau Rud. Baader Gmbh + Co. Kg Wälzlager und Rundläufervorrichtung mit Wälzlager
DE102019201442B4 (de) 2019-02-05 2023-06-15 Thyssenkrupp Ag Verfahren zum Entfernen einer Härtefehlstelle aus einer gehärteten Laufbahn für Wälzkörper eines Wälzlagers
DE102019202234B4 (de) * 2019-02-19 2020-12-17 Thyssenkrupp Ag Verfahren zum Herstellen von Ringen
JP7100004B2 (ja) 2019-09-30 2022-07-12 大同メタル工業株式会社 半割軸受およびすべり軸受
DE102019217085A1 (de) * 2019-11-06 2021-05-06 Aktiebolaget Skf Lager mit zumindest einem segmentierten Ring und Zusammenbauplatten

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