CN1036251A - Bearing means - Google Patents

Abstract

This novel bearing does not need ball or roller and is contained in retainer between the race ring.A kind of form of novel bearing comprises: one is suitable for fixedlying connected with running shaft and plays the hollow shaft (4) of rotation with one, and this hollow shaft has a circumferential flange (17); The bearing shell of a combination (16), its transfixion in use, this bearing shell is two annulus (10,11), each annulus has an annular groove part (14,15) that links to each other with fitting surface, therefore then constitutes groove (18) when these fitting surfaces cooperate Face to face, and flange rotates in groove.The structure of this flange and groove makes hollow shaft simplify with respect to the installation of bearing shell, and is convenient to relative rotation.

Description

Bearing means

In general, the present invention relates to bearing and the bearing means that comprises assembly and bearing support, specifically relating to race ring element or assembly is split type, more particularly, invention includes the bearing of complementary fit face, for example has for a bearing element is positioned the yin, yang fitting surface of usefulness with respect to another bearing element.The present invention be more particularly directed to a kind of Ke Ti Change or replaced common ball or the novel bearing of roller bearing.

Though the present invention is by being introduced with reference to having complementary flange of positioned internal and groove structure, but should point out, the present invention is not limited, and scope can be wider, and it can comprise the bearing of other structure and the application of complementary fit face and the others except that bearing.

Common various multi-form ball or roller bearing generally include an inner ring element that is securely fixed on the running shaft, so that correspondingly rotate with axle; Comprise that one is fixed on Yi Static and ends outer ring on the element; Also comprise by the retainer between inside and outside coil element or flange or like and be fixed on ball or roller on the appropriate location.Ball or roller are kept inside and outside coil element and are rotated relative to one another, usually, because the retainer around ball or the roller has wave-like, so there are hole nest or depression in the side of ball bearing or roller bearing.

With a problem of various forms of common balls or roller bearing associated be, when damage of bearings or in the latter stage in working life, they can not be at the scene or the building site be repaired and the last brand-new bearing of Bi Xu Change.In many cases, inner ring is fixedly connected on the axle, and the dismounting bearing need spend sizable strength, also needs equipment and funds.On the contrary, the invention provides a kind of permission at the scene or the entirely disassembled bearing structure in building site, then one or several part in addition that has worn and torn of Ke Geng Change.And can ressemble bearing, thereby to have avoided be the operation of the whole bearing of expensive time-consuming again Ti Change.

Another and common ball or the problem of roller bearing associated are that all parts all are made of metal.Between these elements, between race ring and ball or roller, be the contact of metal to metal between ball or roller and the retainer for example, the metal to metal contact makes the bearing parts scratch, produce lacklustre spot, rust staining or the like, thereby reduced bearing working life.On the contrary, there is a part to make in bearing provided by the invention or the bearing unit, to reach the effect that does not produce the metal to metal contact with plastics.In some other embodiment, bearing can use sandwich type structural, and wherein metal and the mutual arranged alternate of plastic element are so that the contact of unlikely generation metal to metal.

The general in the past ball that plastic part is arranged or another problem of roller bearing are mounting and positioning devices outside, for example for exactly bearing fixing on axle and keep bearing member in place, a pair of those opposed installing rings spaced apart must be set.Two outer installing rings are set usually, and a place, any side that is arranged on bearing is used to make bearing outer ring with respect to the bearing inner race location of choosing a last position as required in advance.When using bearing, the mutual friction slip of each part produces heat, thereby makes heat accumulation in bearing.Because bearing heating gradually, so part outwards expands on radial and axial.Because have only very little gap outside between installing ring and the bearing, thus when bearing when roller rotates, increased the heat of bearing, bearing is expanded rapidly withstands outer installing ring, finally cause bearing stuck.In prior art, bearing comprises plastic components, and the heat of Chan Shenging can make plastic molting in some cases, so bearing is damaged.On the contrary, the invention provides a kind of built-in, form holistic fixed position with bearing, because heat savings is when expanding bearing, because also expansion thereupon of positioning device, so can be not stuck.The inner positioning device of installing promptly can separate with bearing surface, also can constitute the part of bearing surface.

Common bearing particularly is equipped with the bearing of plastic part, and another problem that those bearings ran into that plastic part is fixed on the part that relatively moves of bearing is that they require well-trained people that Ti Change bearing and positioning device are installed.When Geng Change bearing and bearing parts, the gap of the outer installing ring of levelling will be judged by the technician at the scene.The too small meeting in gap makes bearing heating, thereby has reduced working life, and excesssive gap can make the bearing swing, causes too early wearing and tearing.Therefore, the technician needs the location and installation ring is adjusted in the quite limited tolerance range.On the contrary, positioning device of the present invention is to process with the tolerance of precision in factory.Because do not need the outside fix installing ring, thus do not need the technician to carry out any judgement, thereby just not have the people when adorning the Change bearing at the scene be the error component that causes.

Another problem that common ball and roller bearing exists is that chemistry, physics and biological pollution may appear in bearing or the bearing unit, and this is because common bearing is being open form in varying degrees,, pit gapped at outer surface etc.The pollution of grit, water, bacterium etc. can cause bearing surface to get rusty or burn into this can reduce the working life of bearing again.Because bearing surface of the present invention is not exposed in the environment, be not subjected to the influence of environment, and the outside is level and smooth basically, thereby has reduced the contaminated possibility of bearing of the present invention to greatest extent.

Another problem relevant with common metal bearing device is the problem of bearing support.For example cast-iron chock, metal shaft bearing produce corrosion, burn into biological pollution etc. in the gap when long-term the use.Food industry is not meet the requirements as produce this pollution in meat-industry plant, milk, medical industry.Because its may contaminated food products, cause too early burn into to cause waste.

Therefore, an object of the present invention is to provide all or part of corrosion resisting bearing, bearing support and the part of making by polymer plastic, plastics thrust bearing, pillow block, the bearing support that flange is housed, cylinder plane bearing etc. particularly are provided.

The present invention relates to the industrial bearing that live axle and driven shaft are used, be specifically related to bearing that subelement at least made by artificial synthetic polymer or whole metal bearings of bearing Lai Ti Change and the bearing support that on the metal bearing surface, sets off the plastic polymer material.

According to the catalogue of invention, the present invention can belong to bearing element and the assembly of using with metal and artificial synthetic materials process industry, it can with common metal bearing and bearing support Hu Change.Bearing of the present invention has been cancelled the ball or the roller of locating in any form between race ring.

A kind of canonical form of the present invention relates to a kind of bearing support by filling glass thermoplastic materials, polyester resin mold pressing or machine shaping.Another kind of canonical form of the present invention relates to a kind of bearing shell, and this bearing shell can arbitrarily be placed in the bearing support by mold pressing of identical or different artificial synthetic thermoplastic resins material or processing.In addition, the invention still further relates to a kind of whole part, as bearing support, bearing shell and hollow shaft all by the bearing means of plastic production.

According to another object of the present invention, the present invention also belongs to and will end bearing shell with the Static that artificial synthesizing polymeric material is made and be contained in the above-mentioned bearing support, this bearing shell connects or is contained on the rotatable hollow shaft of making by typical corrosion resistant metal, as stainless steel, the hollow shaft of this form of the present invention can be equivalent to the inner ring of common ball or roller bearing, and the bearing shell of bearing of the present invention can be equivalent to the outer ring of plain bearing.

The invention provides a kind of bearing that is used for axle or similarity piece, it comprises that one is used for axle fixedly connected so that the clutch shaft bearing element that rotates with axle, at least second bearing element that comprises two annulus that are suitable for face-to-face assembling, described second bearing element this Bao of Ji Chi Static in use ends state, for ease of making two bearing element relative positionings and relatively rotating, described first and second bearing elements have complementary linking part.

Should be pointed out that especially bearing shell of the present invention and tubular shaft member have replaced the race ring of rolling bearing, do not need ball, roller, retainer etc., saved the expense of making them, and can replace cast-iron chock with the plastic shaft bearing.

The present invention generally also relates to Ti Change or replaces rolling bearing or similar products, be particularly related to the combine bearing unit of element of metal and synthesizing polymeric material, this bearing unit is suitable for replacing or the common die guide rail cam follower of Change roller or needle bearing mutually.

Bearing modified model of the present invention is a kind of cam follower, and it comprises the bearing shell of a combination, and this bearing shell is contained on the hollow shaft, and hollow shaft and bearing shell are formed a bearing operation surface that does not have ball or roller.The bearing shell of this combination remains on the central flange of hollow shaft by a suitable fastening piece.

Design of the present invention also expands to two ball-type bearings, random automatic-positioning type ball bearing, and wherein ball bearing and race ring are by the bearing shell/hollow shaft Lai Ti Change of a combination, and the bearing shell of combination leans against on the flange of hollow shaft.

Accordingly, the present invention also belongs to two ball-type automatic-positioning type bearing De Ti Change, with comprise one the combination bearing shell/hollow shaft Ti Change, be assemblied in the bearing support before, bearing shell is installed on the hollow shaft that flange arranged, and bearing shell is fixed in the inside with an annulus.

Typical best situation is that the bearing shell of combination is molded or by the thermoplastic polymer manufacturing of the local-crystalized state of no reinforcing material with synthetic polymer, is for example made by the polyethylene phthalic acid.

Part material of the present invention can be plastics, pottery, glass, pure carbon, carbon fiber, graphite impregnation material, Kai Fula (Kevlar) etc. or their combined material.

Typical clutch shaft bearing element is a bearing inner race or hollow shaft, it is fixedly attached on the revolving part, for example is connected on the axle of rotation, so that rotate with the axis.

Typical second bearing element is an outer bearing ring or bearing shell, and Ta Bei Static only is installed on the inner bearing ring.

Outer bearing ring or bearing shell are the annulus of a pair of radially split type.Each annulus is provided with around recess, the convex shoulder of ring circumference configuration, digs pit or groove, when install on the toroidal surface opposite, each recess or analogous shape element are adjacent to each other, so that constitute a groove or analogous shape, the male member of the complementation on the inner bearing ring is rotated in this groove.

The another kind of form of bearing structure of the present invention can comprise the fixedly outer bearing carrier of a filling glass, thermoplastic material polyester resin in assembling condition; The outer bearing element that automatic-positioning type does not rotate; Adjustable fixed bearing block or the intermediary element in the outer bearing element and the inner bearing element of a rotation that hard synthetic polymeric material is made.

The notched surface of Kong Youyi on the bearing support, the surface is a concave curvatures, and the outer surface of automatic-positioning type bearing member is the convex surface of ring, and the indent curved surface of its bearing support cooperates, and two curved surfaces are to be made by different synthesizing polymeric materials.

Bearing shell is two segments that match, each segment is and has the cup-shaped of convex surface, it has external peripheral surface and interior stepped surfaces, and when bearing shell was contained on the bearing support, the outer surface of each segment and the curved inner peripheral surface of bearing support fovea superior formed the surface of the automatic location of a circumference, convex.

Before bearing shell and hollow shaft were packed bearing support in couples into, interior stepped surfaces was contained on the circumferential flange of inner bearing element in couples, for example is contained on the flange on the stainless steel hollow shaft.

The present invention also comprises the method for making bearing means, and it comprises two segments identical, that interior ladder fitting surface is arranged are contained on the hollow shaft in couples that segment is made by synthesizing polymeric material.Circumferential flange on the hollow shaft is suitable for allocating in the interior circular groove that is made of paired segment.Paired segment constitutes an excircle convex surface, and this convex surface matches with indent circumferential surface on the bearing support, and bearing support can have identical or different synthetic or polymer material with segment.

The inner bearing element of bearing of the present invention can be formpiston or the former part that complementary fit is connected, and therefore, the outer bearing element can be corresponding former or formpiston part.Formpiston partly is a flange, it can be the sectional shape of square, rectangle, crooked shape, wedge shape or similar shape, or arbitrary suitable desirable or easy sectional shape, or the sectional shape of combination, the groove or the groove that combine as straight flange and curve end.Because in use, the formpiston flange rotates in the former groove, with inner bearing ring with respect to outer bearing ring location and a supporting surface is provided, so between former groove or annular groove and the formpiston flange with small tolerance interworking.

Flange width can extend arbitrarily with respect to the width of bearing, can be from almost waiting until mutually that with bearing width the lip that is very thin can.Inner bearing ring can be the manufacturing of metal or plastics, and outer bearing ring also can be with metal or plastic materials manufacturing.Inside and outside race ring can be a plastic materials entirely.

The recess or the annular groove of one, two, three, four or more a plurality of flange and respective numbers can be set.Special under the situation of a plurality of flanges, they can have identical thickness and profile, also different thickness and profile can be arranged.Preferable is that flange is a pair of or Cheng Shuan, and each flange leaves at interval to each other.

Two, three, four or more a plurality of split type annulus can be set, the configuration that all faces each other of each annulus in use.

In certain embodiments, annulus can axial subdivision, also radially subdivision or axial-radial subdivision, and for example as in bearing shell, therefore, annulus can be full circle ring or semicircular ring.

Flange can be the continuous or discontinuous otch that has, and they match with recess or groove.In addition, the thermodiffusion device can be installed, as radiating fin, recessed screw thread etc. on flange.One of heat radiation form of the present invention is groove spiral or screw thread, or the spiral shell ridge on the flange side surface.The height of the depth ratio flange of spiral or thread groove or spiral shell ridge is little a lot.Bearing of the present invention can be that rigid wheel holds or automatic positioning bearing, perhaps can be radial load bearing or thrust bearing or journal for axial load.

Bearing shell of the present invention or outer bearing ring can be provided with the overall fixed circle ring device, so that annulus directly be fixed on substrate or bearing support or have on other parts of bearing machine, therefore do not need to be provided with independent bearing support in some applications, annulus needs not to be ring like this, and can adopt any shape.

Some embodiments of the present invention are described with reference to the accompanying drawings.

Fig. 1 is the assembly perspective exploded view of a kind of form in the bearing of the present invention;

Fig. 2 is the partial sectional view along 2-2 line among Fig. 1;

Fig. 3 is bearing broken section and the partial side view that is assembled together among Fig. 1 and Fig. 2;

Fig. 4 is the perspective view of a kind of form in the bearing support of the present invention, has wherein embedded automatic-positioning type bearing of the present invention;

Fig. 5 is the front view of the bearing support showed of Fig. 4, and solid line is represented bearing normal position in use, and dot and dash line is expressed as and takes out bearing and position after turning 90 degrees from bearing;

Fig. 6 is the sectional view along 6-6 line among Fig. 5;

Fig. 6 a is the perspective view of a kind of form of the bearing support behind the taking-up bearing unit;

Fig. 7 is second embodiment's of a bearing unit of the present invention perspective view, showed simultaneously represent with dot and dash line, turn 90 degrees later position of bearings for taking out bearing;

Fig. 8 is the sectional view along 8-8 line among Fig. 7;

Fig. 9 is the sectional view of another embodiment of the present invention;

Figure 10 is another an embodiment's of the present invention sectional view.

With reference to accompanying drawing, what Fig. 1 represented is a kind of simple form of bearing 2 of the present invention, and this form comprises a hollow shaft or inner bearing ring 4 and the outer bearing ring 6 that bearing shell Huo Static ends.Bearing shell or outer bearing ring 6 are segment or split type annulus of a pair of combination, i.e. two identical segments or annulus 10,11, they are made by synthetic polymeric thermoplastic resin material, for example, Wei Sike (Vesco) the Plastics Company trade mark that produce, that sell on the market is VESCONITE plastics etc.

Yet it should be noted that any suits, desirable or suitable material can be used for making annulus 10,11.The outer surface 12,13 of one convex bending is arranged respectively on each annulus 10,11, and have 14,15, two annulus of interior ladder surface to be suitable for being combined together Face to face respectively and form a pair of outer bearing ring 6, rotating hollow shaft 4 rotates in outer bearing ring 6.Hollow shaft 4 is equivalent to rotating inner bearing ring in the habitual bearing, and the most handy stainless steel is manufactured, and has the circumferential flange 17 of circle of position side face central authorities, it should be noted that hollow shaft 4 can be manufactured by any plastics or metal.Circumferential flange 17 is suitable for being placed in the outer bearing ring interior surface, promptly is placed in by interior ladder surface 14,15 to cooperate in the annular groove 18 that constitutes.When two annulus on hollow shaft to fashionable, ladder surface 14,15 be positioned at two the ring inner surfaces, as shown in Figure 3.

Though the flange shown in the figure is square or the squarish cross section, but should note, flange can adopt any simple, suitable or desirable shape, as square, rectangular, curvecd surface type, like the combination of lip or these shapes, as the straightsided shape of band nose circle.Certainly, be combined together the groove 18 that constitutes by ladder surface and have appearance profile with the complementation of flange profile.The optimised form of flange is that slight circular edge is arranged on the circumferential surface.In addition, the flange of any number all can or separate setting brokenly along the wall of hollow shaft 4 rule, and certainly, corresponding several grooves should be formed by the annular groove of splitting.Although represented two opposite opened annular grooves in the accompanying drawing, should expect, several aspectant opposite opened annular grooves can be set.

With reference to Fig. 4 to 6, the bearing that is assemblied among shown bearing and Fig. 1 to 3 in the bearing support 20 is approximate.Bearing support in the illustrated embodiment is a thrust bearing form, and still, bearing support can be taked any form, as pillow block, flange or the like, perhaps as in another embodiment, can install the overall fixed device on the bearing shell 6, this device plays the effect of bearing support.

The bearing shell 6 that is made of two subdivision annulus has outer convex surface, because the outer surface of every annulus 10,11 is convex surfaces, be positioned at the external diameter maximum of two annulus apposition positions, around the external diameter minimum at bearing shell 6 sides places, the convex external surface of the bearing shell after the assembling should be designed to can be chimeric and remain in the spill circumferential inner surface 31 of the complementary shape on the bearing support 20.Also molded or manufacturing of bearing support 20 by synthesizing polymeric material, as thermoplastic materials, polyester resin, preferable VALO * 420 trade mark resins that are filling glass or glass fibre, make as General Electric Co. Limited.To drive then or bearing that the driven shaft (not shown) passes assembling is laid.

When using at a high speed,, grease nipple can be installed arbitrarily for the lubricating bearings surface.

With reference to Fig. 4 to 6a, wherein bearing means also comprises a bearing support 20, an inner ring or hollow shaft 4 and bearing shell 6.Bearing shell 6 has the annulus 10,11 of the split type of 12,13 and two symmetries of outer convex surface.The outer surface of each annulus all is processed into convex surface.There is the hole of the bearing support 20 of interior breach and inner sunken face 31 to have the complete front face 23 of continuous periphery formation and the rear surface 24 that promptly disconnects of part by breach, it up and down on the vertical arc of equidistant extension, is breach to form than the bearing support aperture wideer passage of remaining part that its periphery ends at along bearing support imagination horizontal central line.Passage is the centre that breach extends to the bearing support both sides vertically, to form two identical breach 25,26, portion is tapered from the top to bottom along radius for breach, form opening at the bearing support back side, therefore bearing shell and hollow shaft assembly can be used as integral body around disassembling from bearing support as Fig. 5, dot and dash line horizontal rotational shaft 90 degree shown in Figure 6, promptly by breach bearing shell and hollow shaft assembly linear type are shifted out bearing support.Perhaps opposite, when being horizontal,, bearing shell and hollow shaft group linear type are moved in the bearing support, and then assembly revolved to turn 90 degrees get final product by the breach on the rear wall that opens wide.

(not shown) in another structure of bearing support of the present invention and bearing shell hollow shaft, the bearing shell external peripheral surface can be replaced convex surface with the plane, the inner circumferential surface of bearing support also can correspondingly replace concave curved surface with the plane, and bearing shell and hollow shaft can utilize the circular mounting ring that is contained on every side to be fixed in the bearing support.

Another embodiment of the two circle bearings of the present invention is described below with reference to Fig. 7, Fig. 8.

Two circle bearing meanss 30 comprise bearing shell 34 and flanged stainless steel hollow shaft 32 of combination, and this hollow shaft is packed into the employed method in the plastic shaft bearing shown in being installed in bearing shell and hollow shaft on Fig. 4 to Fig. 6 a of being similar in the stainless outer shroud 36 that continuous outer surface arranged.The inner circumferential surface 31 of the ring that continuous surface is arranged of the present invention or its remodeling disconnects along a certain angular range, and is processed into the concave surface curved surface of taper along same direction.Bearing shell and hollow shaft assembly are horizontal by moving in the horizontal direction in they advance outer shroud always, when they in outer shroud during with 20 upsets of the relative bearing support of the described method of similar above, this assembly can change the working position over to, like this, this assembly just is assembled in the outer shroud.

To illustrate in greater detail this structure below.Outer shroud (bearing support) the 36th, smooth outer surface 43, this groove 44 of being manufactured by " 316 " stainless steel, have 41,42 and centres of identical flat sidewall to have shallow circumferential groove 44 extend around the outer shroud whole outer surface.This outer shroud 36 has a spill inner circumferential surface 45, and the channel slot 46,47 that this surface is oppositely arranged along diameter disconnects, and channel slot 46,47 radially partly stretches into the spill inner circumferential surface of outer shroud, and this channel slot 46,47 is used to receive bearing shell.The part of cutting away on the sidewall of these two channel slots by outer shroud forms, has an axial inside boundary wall that on the V-arrangement inclined-plane, forms with reference to channel slot 46, this channel slot, so that the convex external surface of the segment 35,37 of the synthetic bearing shell of assembled group, the most handy synthesizing polymeric material of bearing shell is manufactured, as Fan China Lars material (FECHNAPLAS) not.Segment 35,37 is installed on the stainless steel hollow shaft 32, join with the central outward flange 17 on the hollow shaft 32, bearing shell/hollow shaft assembly in the outer shroud of spill wall around its axis of symmetry turn 90 degrees with its centering before, can prevent that bearing shell/hollow shaft assembly hollow shaft 32 when meeting at right angles the position with outer shroud from inserting bearing shell too much.With reference to the channel slot on the outer shroud 46, this channel slot is to be formed by the inner side surface 47 that cuts away outer shroud, this channel slot has crooked a radial sidewalls 49,50 and a platform 48, and radial sidewalls 49,50 partly extends on the outer shroud vertically, and its preceding seamed edge 51 is straight substantially.

With reference to Fig. 8, the hole 52 of hollow shaft can be that as shown in the figure taper or lineal shape is cylindrical or has the shape of same inner diameter in the axial direction.

Fig. 9 represents another embodiment, and its hollow mandrel 60 has a circular groove 62, and bearing shell 64 has a flange 66 with groove 62 rotations.In this embodiment, bearing shell 64 is cut open vertically rather than radially, has adopted bearing cap or similar structure.Bearing support or outer shroud 68 can be provided with around bearing shell 64.

Below with reference to Figure 10, an alternative embodiment of the invention-cam follower is described.Cam follower bearing unit 80 shown in Figure 10 comprises the bearing shell of a combination, this bearing shell is made up of two identical mating parts annulus 81,82, and with identical mold pressing or the sclerosis synthesizing polymeric material, as carbon fiber, or the polyester resin that graphite impregnation, glass fibre or shredded fibre are strengthened is made.Annulus 81,82 is contained on the hollow shaft made from stainless steel that circumferential flange 86 is arranged 83, and its interior ladder surface 84,85 and flange 86 are joined.One has the stainless steel outer shroud 87 that outside track operation surface 88 is arranged that constitutes the track cam follower and surrounds bearing shell.This track cam follower is provided with a concave surface 89 with the outer convex surface complementation of each annulus 81,82.The bearing unit that bearing shell and hollow shaft are formed is packed into behind the outer shroud work internal surface, is fixed together with link again.In this embodiment, link is a solid tap bolt 90, different alternative suitable securing meanss such as press fit locking element one class can be housed on its bolt shank, for example packing ring 91 or nut, or on the solid hopkinson bar of tap bolt the auger shell hole, so that with (not shown)s such as one or more grub screws 120, A Lan (Allan) screws, tap bolt is clamped in the bearing, the end of bolt 118 can be smooth or threaded.

The advantage of bearing of the present invention is, than going slick of common metal bearing, in the situation that adopts a large amount of bearings, for example in indoor induction system, each roller of induction system is equipped with two bearings at least, adopts this moment bearing noise of the present invention significantly to reduce. Because can run into unhealthful and security problems when in limited space, using a large amount of various metal bearings, so in enclosed environment, wish the reduce noise.

Another advantage is the negative and positive adapting device of this bearing element, and this device is because with two bearing element relative positionings, and has increased area supported in the situation that does not strengthen bearing element appearance and size.

This bearing is corrosion-resistant, resistant to rust and pollution etc., and this is because outer surface is smoother, locking device and area supported are arranged in bearing inside and are not exposed to cause in the external environment.

Claims (15)

1, a kind of axle or bearing of similarity piece of being used for comprises: be suitable for being fixedly attached to that axle is gone up so that the clutch shaft bearing element that rotates with axle; Have two second bearing elements that are suitable for being connected face-to-face at least, it is static that described second bearing element in use keeps basically, described clutch shaft bearing element has one first connection set, described second bearing element has second connection set with the described first connection set complementation, described two connection sets in use are connected mutually, rotate so that in use two bearing elements are located and are convenient to.

2,, it is characterized in that the clutch shaft bearing element is an inner bearing ring or is fixedly mounted on hollow shaft on the running shaft according to the described bearing of claim 1.

3, according to claim 1 or 2 described bearings, it is characterized in that second bearing element is an outer bearing ring or bearing shell, its Xiang Dui Static only is installed on the clutch shaft bearing element.

4,, it is characterized in that second bearing element is the annulus of a pair of radially split type according to the described bearing of each claim in the claim 1 to 3.

5, according to the described bearing of claim 4, it is characterized in that each annulus is provided with an annular groove around ring, so that when cooperating on the toroidal surface opposite, their annular grooves separately are connected formation one groove mutually.

6, according to the described bearing of claim 5, it is characterized in that the clutch shaft bearing element is provided with a flange, the shape of this flange and described groove is complementary, therefore in use flange can rotate in groove.

7, according to the described bearing of claim 6, it is characterized in that the clutch shaft bearing element has one, two, three or more flanges, second bearing element has a considerable amount of with it grooves.

8, according to the described bearing of each claim in the claim 5 to 7, it is characterized in that second bearing element comprises two, three, four or a plurality of annulus, all annulus cooperate arrangement Face to face at the clutch shaft bearing component ambient.

9, according to the described bearing of each claim in the claim 1 to 8, it is characterized in that second bearing element for axially or radially split type or axial-radial be split type.

10, according to the bearing described in one of aforesaid right requirement, comprise a split bushing that is installed on the hollow shaft, it and hollow shaft form the running matching surface.

11, require described bearing according to aforesaid right, also comprise the 3rd bearing element of second an externally-arranged bearing element, to be suitable for laying second bearing element.

12,, in assembling condition, also comprise a fixing outer bearing carrier, an outer bearing element, an intermediate bearing element and an inner bearing element according to the described bearing of above-mentioned each claim.

13, according to the described bearing of claim 12, it is characterized in that bearing hole has the internal surface of a notched recessed song, the outer surface of outer bearing element is a circumference convex surface, this curved surface matches with the inner sunken face of bearing support.

14, according to the described bearing of above-mentioned each claim, it is characterized in that bearing shell is two segments that match, each segment is the annular of being with convex surface, outer peripheral surface and interior ladder surface are arranged, the external male curved surface of each segment forms the automatic-positioning type matching surface of a circumference convex with the spill inner peripheral surface of bearing support, before bearing shell was put into bearing support, interior ladder surface was suitable for cooperating the circumferential flange of inner bearing element.

15, a kind of manufacture method of as the described bearing of above-mentioned each claim comprises two segments identical, that interior ladder fitting surface is arranged are connected on the hollow shaft that hollow shaft has a circumferential flange, in the inner groove that is formed by a pair of segment that is suitable for packing into.

Images