Патент USA US2122365код для вставки
- 'June 28, 1938'. , ‘ ‘H, BECK 2,122,365 I METHOD OF PRODUCING SHEET METAL GAGES FOR CYLINDBICAL ROLLE‘RIBEARINGS ‘ Filyed Jan. 31, 1936 Fig.5. ‘1*? ' , 2 Sheets-Sheet l » Fig. 6. INVENTOR. Hans Beck June 28, 1938. H_ BEQK ‘ 2,122,365 METHOD OF PRODUCING SEEET METAL CAGES FOR QYLINDRICAL ROLLER BEARINGS Filed Jan. 31, 1936 2 Sheets-Sheet 2 ' ' INVENTOR. Hans Beck _ hlS ATTORNE-. ' Patented June .28, 938 1 2,122,365 * ‘UNITED STATES ‘ PATENT OFFICE ' 2,122,365 METHOD OF PRODUCING SHEET METAL CAGES FOR CYLINDBICAL ROLLER- BEAR INGS Hans Beck,‘ Stuttgart-Bad-Cannstatt, Germany, assignor to Aktiebolaget Svenska Kullager Iabriken, Goteborg, Sweden, a corporation of Sweden Application-January 31, 1936, Serial No. 61,654 y , In Germany February 19,1935 8 Claims. v (0.]. 29-1484) _ My invention relates to improvements in the. . outside or inside of the cage depending on whether method of producing sheet metal cages for cylin drical roller bearings. ' __Cages for. cylindrical? rollerv bearings as hither 5 to used have been mainlyof. drilled type. Cages of drilled. type. can be used both for bearings with ?anges-Ion. the outer race ring and for- bearings with ?anges on the inner race ring, but have thev disadvantage that they are rather 10 ' expensive to manufacture. It is therefore» desir able to produce a cage of sheet material for cylin the tongues are bent inwardly or outwardly. It. has previously been suggested to make 2 shaped. roller cages of sheet material for taper 1 roller bearings. The conical form of the inner race ring of taper roller bearings, however, per mits the roller set, and the cage to be passed into place on the race way over the ?ange ‘at the small end of the ring. This method of assembling the bearing cannot, however, be usedin assembling cylindrical roller bearings without an additional drical roller bearings. It has,however,been found operation. Between the two bearing types there di?icult to design a cage of sheet material which can be used‘ for both of the above types of cylin drical roller bearings. If the cage is suitable for 'only one of the above types of bearings the num ber of cage types which must be kept in stock will be doubled with consequent increase in the cost of manufacture and stocking. A further 20 requirement is that the cross'section of the cage should be of such shape as to give the cage su?i is a further fundamental difference in that the cylindrical roller bearing is sometimes provided with ?anges on the inner race ring and sometimes 15 with ?anges on the outer race ring, the bearings otherwise being identical. This is not the case with taper roller bearings. In the latter type of roller bearings there are consequently no cages adapted for use both with bearings having ?anges 20 ‘on ,the. inner race ring and for bearings having cient strength and sti?ness, since the thickness _ ?anges on the outer race, ring. ‘of the material is limited because of the punching The accompanying drawings illustrate a num and pressing operations. ber of forms of the cage according to the inven 25 . The cage according to the invention is manu tion and the method preferred in assembling the 25 factured from sheet, material and has a-rigid 2-‘ hearing. In which drawings: ‘shaped cross section. In its fundamental form the cage can be used both for bearings with ?anges on the outer race ring and for bearings 30 with ?anges on the inner race ring. The roller pockets are provided with tongues which are . adapted to be bent toward each other to retain the Figure 1 is a view in axial section illustrating a form of my improved cage applied to the roll ers of a bearing having inwardly directed ?anges formed on the inside of the outer race ring. 30 Figure 2 shows a cross section of the cage illus trated in Figure 1 and the ends of part 01' the - rollers in‘ place after they have been inserted into rollers 01! the set belonging to the same bearing. the'cage. For cylindrical roller bearings having , Figure 3 is a view in axial section of a form of 35 ?anges on the innerv race ring the tongues are the cage applied-to the rollers of‘ a bearinghav 35 'bent outwardly and in bearings having ?anges ing outwardly directed ?anges on the outside of on the outer race ring the tongues are bent in~ the inner race ring. -. wardly. Thus only ‘the tool. for bending the Figure 4 is a cross section 01’ the cage illustrated tongues need be made di?erent‘for the two types in Figure 3 showing the ends of part of the roll 40 of roller bearings. The fundamental form of the ers oi‘ theset belonging to the same bearing. 40 cage is on the other hand exactly the same in both Figure 5 is a side view of a portion of a blank cases. The cage can, however, be designed so drawn and stamped and representing the basic or thatin ?nished iorm' it ,can be used for- both fundamental part from which any one of the three bearing types. ‘In that case one of the tongues forms of cage herein illustrated may be formed by 45 at each roller pocket is bent outwardly and the other tongue is bent inwardly. > The Z-shape of the cross section of the cage . gives the cage su?‘icient rigidity. This shape of cross section has the further advantage that it 50 permits the introduction of a supporting tool be tween the cage and the ?ange for supporting the cage when assembling the bearing. This tool en ables the cage to retain its roundness when the tongues are being closed about the rollers. The 55 Z-shape'permits the tool to be introduced either simple bending operations. ' 45 Figure 6 shows an axial section of the basic or fundamental cage element shown'in Figure 5., Figure 7 shows a preferred method of bending the tongues at the roller pockets of a cage mount ed in a bearing having ?anges on the. inside of 50' the outer race ring. , t Figure 8 shows ‘the corresponding operation for bending the tongues of a cage mounted in a hearing having ?anges on the outer side of an inner race ring. . 55 2,122,305‘ Figure 9 is a detail, principally in axial section ' 1 showing the position of a supporting tool applied to a cage and bearing structur’e'such as that illus trated in Figures 3, 4 and 8, and Figure '10 . shows a‘ vv‘broken away portion ‘of ‘the. supporting tool, partly in axial section. ' = ' one direction and the other cage ?ange‘ extend ‘ing' radially in the opposite direction, the cylin drical body portion being formed with roller pockets, there being tongue members provided at both sides ofseach'pockehth‘en bendingthe tongue 5 ‘ members so that both tongues v‘belongingto the same pocket extend from the same perimeter of . l The shape ‘of the cage and tongues before the latter are bent over is clearly indicated'in l5’ig-‘v jthelcylindrioal body portion, then assembling the ure 10 5. . > , > 4 cage with a bearing ring having a race way‘ior ‘ In Figure 1, the numeral l designates the outerv .‘the rollers and, integral ?anges formed at each 10 race ring of a cylindrical roller bearing against ‘ side of the race way and directed toward the body which the cylindrical rollers 2 roll. The cage 3 of the cage, andv projecting in the same general has a Z-shaped cross sectionrand tongues I ‘are " direction‘ from the race way as do the tongues provided at the pockets for'particularly' enclos ‘from the body of'the cage, then placing rollers ing the rollers 2. Figure 2 shows the same cage in va section perpendicular to the axis of the hear ing. It is apparent from they ?gure that the in the pockets'vand then bending the tongues to 15 enclose therollers. ' . 2. The method of‘ producing roller cages for tongues 4 have such‘a shape that they retain bearings, which consists in employing a cage for the roller 2 on the outer race ring I, even when the rollers comprising a cylindrical body portion the inner race ring is removed. In bearings hav ing ?anges on the inner ‘race ring the tongues 8 of the cage 1 are as shown in Figurs 3 and 4 bent outwardly and in this case retain the rollers 6 on, the inner race ring 5. 25 formed with pockets and having ?anges at its 20 respective sides, one of said cage ?anges extend‘ ing from the cylindrical body portion radially in one. direction and the other cage ?ange ex tending radially in the opposite direction, the In both cases the fundamental or basic form cylindrical body portion being. formed with roller of the cage, as previously explained, is thesame whether the cage is used in connection with roller pockets, there being tongue members provided at bearings having ?anges on thelouter race ring or with roller bearings having ?anges on the 30 inner race ring. The only difference between " cages for the one or the otherv bearing typej con both sides of each pocket, then bending the tongue members so that both tonguesbelonging to the same pocket extend from the same perim eter of the cylindrical body portion, then as 30 sembling the cage with a bearing ring having a sists in the bending of the tonguesinwardly or outwardly. In the manufacture of the cages the race way for the rollers and integral ?anges formed at each side of the race way and directed tongues are so bent that both tongues belonging toward the body of the cage, and projecting in 35 to the same pocket are disposed on substantially ' the same general direction from the race .way as 35 parallel planes. ‘This makes it possible to as semble the bearing by concentrically positioning do the tongues-from the body of the cage, then placing rollers in the pockets, then introducing, the ?anged bearing ring and the proper cage a supporting tool between the cage and the bear after which the rollers are introduced into the ing ring at theside of the cage at which-the ?ange of the cage projects away from the bearing ring, 40 and’ then bending the tongues to support the roll pockets from the side facing away from the bear ing ring. ' After one or more of the rollers have been as ers, the body portionof the cage being supported ' ' sembled the tongues are bent to conform very onv its perimeter oppositethat from which the closely ‘some shape of the roller within the ap tongues project. 45 purtenant pocket. This bending is preferably. done°in the manner illustrate‘! in Figures 7 and 8, . . by means of a tool having a number of radially , _ 3. .The method of producing :cages for roller 45 bearings. which consists in forming a cage ‘of basic Z shape, its central portion being formed movable ?ngers II and "I2, which‘areintroduced vwith roller pockets provided with tongue-'meme between a pair of adjacent, tongues and bend the 50 tongues so that they partly enclose the rollers in adjacent pockets. In order to prevent the cage ject, inwardly, then‘ placing outwardly of .the from becoming deformed during this operation, 55 ?ngers ll, one for each space between the rollers. cage a bearing ring having inwardly directed guide ?anges at its sides, then inserting rollers in the pockets, then introducing a suitable sup porting tool ‘between the cage and the race- ring The tool l3 may have the shape of a ring proe and then bending‘ the tongues to enclose the. losing its circular form, the. cage may be sup portedby a tool I3, provided with a number of vided with axially extending ?ngers I I. "When assembling cages for bearings. having ?anges on the inner race ring the tool is introduced as shown . bers at each side, then inwardly bending .they said tongue member-sand causing them. to- pro 60 in Figure 9. The ?ngers’ l4 are thereby sup ported by the ?anges -l 5—l 5 of the inner race ring. The introduction of this tool is made possible be causeone ?ange IQ of thecage is bent outwardly. rollers. 4 66 , 4. The method of producing cages for roller bearings which consists in forming a cage of basic 2 shape,'its central portion being formed 60 with roller pockets provided with tongue mem bers at each side, then outwardly bending the said tongue members and causingthem to pro When assembling av cage for bearings having ject outwardly,’ then placing inwardly of the 65 ?anges on the outside of the outer race ring the cage a bearing ring having outwardly directed tool is ‘introduced from the side of the bearing at ‘ guide ?anges at its sides, then inserting rollers which the'?ange i1 is bent inwardly. . ' ' Having thus described my invention, .1 claim and desire to secure, by Letters Patent:— " 70‘. 1. The. method of producingv roller cages-for ‘bearings, which consists in employing‘ a cage for the rollers comprising a cylindrlcal'body'portion in the pockets, then introducing a suitable sup porting tool between the cage and the race ring. andv then bending the tongues‘to enclose the rollers'.,- _ ' " ‘ > 5. The method of producing cages for roller bearings, which consists in employing a cage formed with pockets and having ?anges‘ at its made of a basic 2 shape having a cylindrical .respective sides, one. of said cage ?anges extend- _ body portion‘ formed with roller pockets and " 'ing from the cylindrical body portion radially in having ?angesat its respective'sides, there 'be . _ 2,122,865 3.’ each pocket, then bending the tongue members ' cage ?ange extending radially in the opposite direction, the cylindrical body portion being inwardly, then placing outwardly of the cage a bearing ring having a raceway for rollers, there formed with roller pockets, there being tongue members providedat each side of each pocket, ing tongue_ members provided at both sides of being an ‘inwardly = directed integral ?ange formed at each side of the race way; then plac ing rollers in the pockets, then introducing a supporting tool between the cage and the race ring at the ‘side of the cage in which the Z -10' ?ange of the cage projects inwardly, and bend- ing the tongues to enclose the rollers. - ‘6. The method of producing cages for roller bearings, which consistslin employing a cage vmade of a" basic 2 shape having a cylindrical 15 body__ portion formed with roller pockets and having ?anges at the respective sides, there be ;ing tongue members provided at both sides of ’ each pocket, then bending the tongue members outwardly, then placing within the cage a bear ~20 ing ring having a raceway for rollers, there being then bending the tongue members inwardly so that both tongues belonging to the same pocket are disposed on substantially parallel planes, then assembling the cage within a bearing ring having a race way for the rollers and integral ?anges formed at each side of the race way and 10 directed inwardly toward the body of the cage, then placing the rollers in the pockets, and then bending the tongues to enclose the rollers. 8. The method of producing roller cages for bearings, which consists in employing a cage for 15 1the rollers comprising a cylindrical body por tion formed with pockets and having ?anges at ‘its respective sides, one of said cage ?anges ex tending radially in one direction and the other cage ?ange extending radially in the opposite each side of the raceway, then placing rollers in the pockets, then introducing a supporting tool between the cage and the bearing ring at the 25 side of the cage in which the Z ?ange of the the direction, the cylindrical body portion being formed with roller pockets, there being tongue members provided at both sides of each pocket, then bending the tongue members outwardlyso that both tongues belonging to the same pocket are disposed on substantially parallel planes, tongues to enclose the'rollers. 7; The method of producing roller cages for bearings, which consists in employing a cage for then assembling the cage upon a bearing ring having a race way for the rollers, and integral ?anges formed at each side of the race way and 30 the rollers comprising a cylindrical body portion directed outwardly toward the body of the cage, then placing the rollers in the pockets, and then bending the tongues to enclose the rollers. an outwardly directed integral ?ange formed at cage projects outwardly, and bending formed with pockets and having ?anges at its Y respective sides, one of said cage ?anges ex tending radially in one direction and the other HANS BECK.