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Патент USA US2122365

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- '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.
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