DE1450021A1 - Deep groove ball bearings - Google Patents

Description

Dr.Expll ^{sc? Ok}

SKP KUQELLAOERPABRIKEN limited liability company

H50021

Deep groove ball bearings

The invention relates to a deep groove ball bearing with two or more ball ridges arranged at a distance from one another, which inner = half of a common outer ring in curved inner and outer raceways to run.

In a known storage of this type is to facilitate a resilient washer is provided on one end of the assembly, which is an axial running surface for the outer K ^ gelrelhe formsο With such a bearing, only in forces are absorbed in one axial direction, since those in the other Forces acting in the axial direction can move the resilient disk. For this reason, such bearings fulfill koint high demands in terms of running properties and resilience, especially in the axial direction. With one that has become more popular multi-row deep groove ball bearings should increase the axial load capacity in both Aehsrlchtungtm and make it about the same size that instead of a disk resting against one of the rows of balls under the action of a spring, one with the axis disc inseparably connected by means of vir welding is provided. This creates a coherent bearing that is not more can be dismantled without destroying the bearing,

The invention has the object of providing a bearing with two or ireirer "n, Z _0, four in spaced Kugelrcdhan to provide that" overloaded w "rd <tn kasan, wherein said highly be in two Aohsrlefotiungen all Levufbahnesi a Kreiabogenprofil can, whereby a correspondingly high radial load

909816/0133

-S- 'H50021

SICP KUOSLLAeERFAHRXKEIf limited liability company

guaranteed iät. By assembling the storage

can nevertheless take place in particularly simple catfish ©. Achieved this! Slal according to the invention is essentially characterized by that oil® outer runway shoulders. each row of balls in

ring has a norinald courtyards © »wS'irsn ··! in the B © a? © iah des? inside LaufMahnsehulter © Ine dl © normal Se? Rmlt © rfoöfoe Üfo © r <

see essentially radial <tis »st5? eck © rid @ Ii is preceded by »This results in sicli in bmidea

a © opposite Hillenkupdlrgern vorbekanrifesr design increased © BolM3tto «mFk®it ₅ , oiin © that eich oils for the installation © ines camp w @ ser) .tlioh ©: .i 'ÄuIenabni © s§uns © Ei enlarge- iSßöFn, GleloJa ^ aitig can be achieved by a © © nt @ ps? e © h @ nd © Beasossung der 'J.-srlaossr-iog © in for the assembly d®, B bearing essential advantage wm dor sicJß i'aabescnelag ³ © with small Lag @ r: i od € 3r Lag-srung ©; ^ mn chen parts a lä @ saM © f £ i cheap sm & vit ^ ktg 3 @ i dextsn ei © ¥ elimination of auxiliary work only difficult- od® :? at all nleh '; is possible·

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in the Äiistnri ^ so big gu bem @ si3 @ n _a that you® lent the greatest · ¹ ?

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909816/0133

- 5 - HtOUUZ I

SKF KUOELLAaERPAHRIKEN company; with limited liability

According to a further proposal of the invention, the extensions formed in the area of the inner raceway shoulders in the bearing outer ring by a part that is integral with this be. In a modification of this design, the extensions can also be used as additional parts, connected to the bearing nut ring "; Be carried out" with either two spheres then "in common, or for each Kugelrer.he respectively. nife 3em bearing outer ring connectable ring wirä. The previous igerurigeii can, according to the invention, directly contact those of the lager = The career school gate on the inner side of the Luger outer ring, ansohlie »* sen and thus a «especially with occurring Axialbelaptuiri" form a closed running surface for the ball that is effective in the respective direction or be directed axially outwards and the effect e: .nes Inclined = or have axial ball bearings.

If, in the case of bearings with no or only little axial load, the extensions in the area of the inner divider barrels in the position out of the ring do not tear open any treads for the assigned rows of balls - and primarily the sici for the assembly of the layers ! advantage according TZT who is on, according to the Krfincunri, ede of the extensions in ALi _v '& nd ata "inside" is term - aufbalmschulter in Lagere ußenring & \ ^ eo.!. FDnet £ 3An ₀ in this' all? can & I3 VerlHngaruiig, for example, v «in Ir. an Nv.t des Lf ^ «ri, ussiinri.ngea in the area of the respective iviföahr. intervene or Pecen-inj ^ cd sr the like without special course - ^ n serve.

For <ler assembly of the invenient Lagerurgj, νοϊ, already mentioned, ohia Stützwsrkaeuf e or the like "for d." Balls \ or, 5iir.omm € n verden itarin, the / chse within the i ^ .ert i'in ^ is. At he the filling point located Eohrujigi _fcn d im- £ .8l3i? T, se that the outside freiwe2? der.de Spalt the balls at ^ i nmt ,, die, however dtirch 6.H radial Ve ^ läi; geyuv; 5 in the area n'r.T \ _y >

9098 16/0 133

U50021.

SKP KUßELLAOERFABRIKEN limited liability company

Ball raceway facing the bearing races in the bearing outer ring is not can fall through to the center of the camp. When the balls are filled, they are distributed in the grooves, creating the axis is brought into a central position to the outer ring and a KH = fig can be used »

In the drawing, the invention is shown in exemplary embodiments

1 shows a two-row deep groove ball bearing in longitudinal section,

Fig. 2 shows a deep groove ball bearing according to FIG. 1 with one for the filling of the ball in the offset axis,

FIG. 3 shows an enlarged illustration of part of the bearing according to FIG. I ₅

Flg. 4 shows a modified arrangement of a bearing in a representation corresponding to FIG. 3,

Fig. F $ a® further modification in one of FIG. 3 corresponding Representation and

Fig »β an example of use for a four-row La = gerungo

On an axis 1, circular arc-shaped grooves 2 for the ball row 3 are provided at a predetermined distance as tracks. The outer raceways 4, which are also essentially in the shape of a circular arc, are arranged in a common outer ring 5 designed as a sleeve _P whereby, as can be seen in particular from FIG. corresponds to, while the shoulder height B of the track shoulder 4 ^T facing the center of the bearing exceeds the normal shoulder height «

- 5 909816/01 33

. ₅ . H50021

SKF KUOELLAOERFABRIKEN limited liability company

As substantially radially extending decrease is "trained irinenllegende Laufbahnachulter 4, wi" Fig can be ₀ 2 of the drawing recognize such dimensions that the greatest clear width at an eccentric contact of the axle 1 at the bore wall of the outer ring 5 of the resulting gap is slightly smaller than the diameter of the balls 3 indicated by dash-dotted lines in Fig. 2. When assembling the bearing, work can thus be carried out without the aid of a special support tool, since the balls 3 cannot get into the space between the two raceways 4 in the bearing outer ring 5.

Instead of the extension 4 ″, which is integral with the bearing outer ring 5 in FIGS. 1 to 3, can be seen, as shown in FIG. 4 of the drawing lets, also one in an annular groove 6 of the bearing outer ring 5 » settable ring part 7 with a closed track 8 for the respective row of balls 3 may be provided. The height A of the shoulder 4 'lying on the outside of the bearing is in this embodiment kept essentially normal, while the height B is that of the center of the bearing facing, as an additional ring part?, δ formed extension beyond the normal range beyond * - The choice of respective design will depend on the size of the bearing and the axial load capacity, with the raceway δ as special, inclined or axially outwardly directed, closed ball raceway can be formed.

In the arrangement of Fig. 5 of the drawing in the outer ring 5 is a comparison with the embodiment according to FIG. 4 further gerückte to the bearing center of the groove 6 'is provided for receiving a ring member 7 ^9, the Χϊλ opposed to the annular part 7 of Fig. 4, no axial KrHfte has to include. The rows of balls J5 run in the groove 2 of the Afihßo 1 and on their outside in a groove 4, the raceway course on the inside of the bearing and on the outside of the bearing «? a normal height, ie a height corresponding to size A,

909816/0133 ^ & ^ - 6 -

-6-. H50021

SKF KUOELLAOERFABRIKEN limited liability company

If necessary, as can be seen in FIG Borehole section 9 has the line drawn in dash-dotted lines in FIG. 5. The ring part 7 ⁸ serves in this case primarily only to facilitate the assembly of the bearing and acts like the extension 4 ″ according to FIG. 2. Of course, the extension 7 ′ according to FIG Manner as in Fig. 4 of the drawing.

The advantages of the extension 4 ″, 7, 7 ^a have an effect, as already mentioned, both in bearings that have to absorb high axial forces and in bearings for parts with high axial loads and / or difficult installation conditions 6 of the drawing with four rows of balls spaced apart on a common axis, for example a twin top roller for spinning purposes. They are at each end of a common axis 10 each two rows of balls 3 are provided with a common outer ring 5 , which carries a dash-dotted line 11. On their outer end face, the outer rings 5 are closed by means of a cover cap 12 or the like, while on the inside opposite to the axis 10 they are attached to the The sealing sleeve 1 pushed onto the axis 10 are sealed with sealing ribs 14. The inner raceways 2 are as in the arrangement according to d 1 to 5 of the drawing are arranged directly on the axis 10, while the outer raceways 4 for the balls 5 are provided in the outer bearing rings 5. The raceway shoulders facing the center of the outer ring 5 are, as is shown enlarged in FIG. 3 of the drawing, in the bearing outer ring as essentially radial extensions

909816/0133

- 7th

SXF KUOELLAOERPABRIKEN Oeselleohaft with limited liability

stanchions 4 "with a shoulder height B built so that they absorb both the occurring axial loads, as well as the ready8 facilitate the assembly of the bearing according to FIG. 2 of the drawing, which is particularly useful in such bearings Weight can fall.

Of course, the arrangement according to the invention is also still Can be modified in many ways, especially with regard to a special training of the extension or its career.

909816/0133

Claims (8)

SKF KUOELLAOERFABRIKEN company with limited he ^ HÄ ^ un U50021 atenta'nsprohe f \ J Deep groove ball bearings with two or more rows of balls arranged at a distance from one another, which run on curved inner and outer tracks within a common outer ring, characterized in that the outer raceway shoulder (4 ⁸ ) of each ball row (3) in Outer ring (5) has a normal height (A) * while in the area of the inner ^{raceway shoulder (4 M} ) a substantially radially extending extension (4 ⁿ , 7, 7 ") is provided which exceeds the normal shoulder height. 2. Deep groove ball bearing according to claim 1, characterized in that the extension (4 ", J, 7 ') of the inner barrel« bahnsdriulter in the outer ring (5) is so large that its largest clear width (C) compared to the opposite = lying side of the bore in the outer ring (5) adjacent Acfoae (1) is slightly smaller than the ball diameter. 3 «deep groove ball bearing according to claims 1 and 2, characterized in that the extensions (4") in the area of inner raceway shoulder in the bearing outer ring (5) is formed by a part that is integral with it 4. Deep groove ball bearing according to claims 1 and. 2 characterized in that the extension (7, 7, ⁸ ) of the inner raceway shoulder in the bearing outer ring (5) is formed by an additional ring part that can be connected to this 909816/0133 - 9- H5Q021 SKF KÜOELLAOERPABRIKEN limited liability company 5. Deep groove ball bearing according to claims 1 to 4, characterized in that the extension (7) is directly attached the raceway shoulder facing the inside of the bearing in the bearing outer ring (5) connects. 6. deep groove ball bearing according to claims 1 to 5 * characterized in that therefor the reduction (7) of the internal Raceway shoulder has an oblique or axially outwardly directed ball raceway. 7. Deep groove ball bearing according to claims 1, 2 and 4, characterized in that the extension (7 ⁹ ) is arranged at a distance from the inner raceway shoulder in the bearing outer ring (5). 8. deep groove ball bearing according to claims 1 to 7, characterized in that that the axis (1) inside the bearing outer ring (5) for filling the balls (j5) at the filling point opposite bore wall is created. 909816/0133