JPH0346688B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is a packing device for a rolling bearing that includes an inner race and an outer race, and includes an inner covering portion made of an elastic material on at least a portion of the inner surface. The present invention relates to a packing device for a rolling bearing, comprising a sealing portion in which the inner covering portion abuts an inner race.

[Conventional technology and problems]

The purpose of using a packing in a rolling bearing is, for example, to retain lubricant within the rolling bearing and to prevent the ingress of impurities. The rolling bearing has an outer race and an inner race, the outer race being fixed within the bearing casing and the inner race being coupled in relative rotation with a shaft extending through the bearing casing. As the packing, an elastic cover plate-shaped packing fixed between the outer race and the bearing casing wall or between the inner race and the shaft groove is known. Each free end of such a seal is supported on the end face of the other race, so that the area between the inner race and the outer race is sealed against the outside. The clamped part forms the holding part of the seal, while the free edge serves as a sealing part which joins in a pre-elastically biased state to the end face of the race. The outer surface of the outer race abuts directly against the bearing casing wall, so that the noise generated during rotation of the shaft is transmitted into the bearing casing, creating an unpleasant noise. Because the outer race joins directly to the bearing casing wall, a significant amount of heat flows from the bearing casing to the rolling bearing during operation, resulting in faster wear. Furthermore, installation is troublesome.

[Problem to be solved by the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a packing device for a rolling bearing that reduces noise during operation and is easy to install.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention provides that an inner covering part is provided on the support body, and an outer covering part is provided on the cylindrical part and bottom part of the support body on the opposite side from the outer race. , in the transition area from the bottom part to the tubular part, on the side opposite the outer race, the support is exposed and the part of the inner sheathing part provided in the bottom part is a sealing part. It is characterized in that it is formed by a connecting member which connects the bottom part to the support, said connecting member surrounding the bottom part from its radially inner edge.

〔Example〕

Next, embodiments of the present invention will be described using the accompanying drawings.

The packing device according to the invention is used in a rolling bearing having an inner race and an outer race, between which rolling elements are supported, and has a holding part, a support body and a sealing part.

In the embodiment shown in FIG. 1, the support 8d has a cylindrical portion 8d'. This cylindrical portion 8d' is
The bottom portion 11d is shaped like a disk and extends perpendicularly to the cylindrical portion 8d'. The support 8d preferably consists of a metallic material, so that the holding part 4d is sufficiently rigid. The thickness of the support 8d is 0.3mm
It is as follows. Therefore, the thickness of the holding portion 4d is only small, and the outer diameter of the rolling bearing is not significantly increased by the packing device. The cylindrical portion 8d' of the support 8d has two coatings that engage with the end surface 16d of the cylindrical portion 8d' over its entire axial length and over its entire circumference and that transition into each other. 19d and an inner covering part 39d. Both covering portions 19d and 39d include irregularly shaped portions 29d and 42d each having a wave-shaped cross section. Thereby, the tolerances of the mounting space and the rolling bearings during the mounting of the packing device can be easily corrected. Furthermore, the profiled portions 29d, 42d also ensure a secure fit of the packing device. The inner covering part 39d, which joins the inner surface of the cylindrical part 8d' of the support 8d, extends to the bottom part 11d, while the outer covering part 19d, which rests on the outer surface of the cylindrical part 39d, It extends to a transition region 15d of the shaped portion 8d' to the bottom portion 11d. The sealing part 5d transitions into a connecting member 48d, which connects the sealing part 5d with the support 8d. Connecting member 4
8d extends only over half the radial length of the bottom portion 11d, and the outer covering portion 19
d and the inner covering portion 39d. The coupling member 48d consists of two disc-shaped parts 51 and 52 that cover the bottom part 11d on the inner and outer surfaces and are integrally formed with the sealing part 5d. The radially inner edge of the bottom part 11d is therefore surrounded over its entire circumference by the connecting element 48d. Since the sealing part 5d and the covering part 18d are not connected to each other, they can be made of different materials. It is therefore possible to optimally adapt the material to the respective intended use.

In the embodiment of FIG. 2, the support 8m has a cylindrical portion 8m' as follows. That is, it has a cylindrical portion 8m' which transitions from the outer race 2 of the rolling bearing to a bottom portion 11m projecting radially inwardly through an arcuate transition region 15m. Cylindrical part 8
m' is placed on the outer surface 9 of the outer race 2 of the rolling bearing and is the outer covering portion 19m of the covering portion 18m.
It is completely covered on the inside by a covering portion 39m that transitions to. The covering part 18m has a profiled part 29m with a corrugated cross-section in the axial direction and covers the cylindrical part 8m' of the support 8m approximately up to the transition region 15m.
Furthermore, the covering portion 18m is the end face 16 of the cylindrical portion 8m'.
Cover m all the way around it. The holding portion 4m reaches the end face 27 of the outer race 2. Inner covering part 3
9m transitions into a portion 51m of the coupling member 48m covering the inner surface of the bottom portion 11m. bottom part 1
The lower part of 1 m is covered by the part 52m of the coupling member 48m approximately up to the transition area 15m. The sealing device rests directly on the outer ring 2 of the rolling bearing by means of the inner jacket part 39m and said part 51m. The coupling member 48m is frustoconically shaped and extends outwardly from the bottom portion 11m. Further, the coupling member 48m terminates at a position approximately half the radial width of the inner race 1 of the rolling bearing. Radial inner edge 55 of the coupling member 48m
is a portion 56 located in the radial direction of the sealed portion 5m.
surrounding. The sealing part 5m has a cylindrical part 57 extending parallel to the cylindrical part 8m' of the support 8m,
This cylindrical portion 57 is a disk-shaped portion 5 in the radial direction.
6 in an arc shape. The cylindrical portion 57 of the sealing portion 5m is joined by its end surface to the end surface 49 of the inner race 1 of the rolling bearing at a position approximately half the width of the inner race 1 in the radial direction. The integrally formed sealing part 5m can be made of metal, but
On the other hand, it can also be made of synthetic materials. Connecting member 4
8m is formed so that the cylindrical portion 57 of the sealing portion 5m is pressed against the end surface 49 of the inner race 1. It is advantageous to form the connecting part 48m relatively thin, so that the connecting element 48m can exert a sufficiently high pressing force on the sealing part 5m. The disc-shaped part 56 of the sealing part 5m is oriented outwardly from the cylindrical part 57 in the direction of the outer race 2 of the rolling bearing.

The packing device illustrated in FIG.
The bottom portion 11i extends perpendicularly to the cylindrical portion 8i' and bends into the cylindrical portion 8i'. The support 8i has a generally uniform thickness and in particular consists of metal. The sealing part 5i passes directly into the coupling member 48i. Coupling member 48i
The outer portion 52i of joins the lower surface of the bottom portion 11i and extends the bottom portion 11i approximately into the transition region 15i.
It's even covered. . A portion 51i of the coupling member 48i resting on the inner surface of the bottom portion 11i
completely covers the bottom portion 11i with its inner surface and transitions in a curved manner to the inner covering portion 39i. The inner covering part 39i covers the inner surface of the cylindrical part 8i' of the support 8i and passes into the outer covering part 19i which rests on the outer surface of the cylindrical part 8i'. Therefore, the end surface 16i of the cylindrical portion 8i' of the support 8i is covered by the covering portion 18i. The outer covering part 19i ends at a slight distance from a transition region 15i between the cylindrical part 8i' and the bottom part 11i of the support 8i. Thereby, the outer surface of the transition region 15i is exposed, while the inner surface is coated. Therefore, high sealing performance can be achieved between the packing device and the outer race of the rolling bearing.

Corrosion occurring on the inside is prevented by completely covering the inside with a covering 18i, which advantageously consists of rubber. Furthermore, the transition area 15i, which is not covered by the covering part 18i, allows easy application of an installation tool for installing the gasket.

The above is an embodiment of the packing device for a rolling bearing according to the present invention, and the related technology of the present invention will be explained below.

The packing device shown in FIG.
and a sealing portion 5 which rests tightly on the outer surface 6 of the inner race 1. The sealing part 5 is a lip-shaped seal which rests on the outer surface 6, in particular by a sealing edge 7.

The holding part 4 is of cylindrical design and has a cylindrical support 8 which rests on the outer surface 9 of the outer ring 2 over approximately the entire axial length of the outer ring. The holding part 4 is integrally formed with a bottom part 10 which extends perpendicularly to the axis of the holding part 4 and has a centrally located through hole 10'. The support body 8 is bent into an arc shape in the cross section and has a bottom portion 11.
is moving to. The bottom part 11 abuts the end face 12 of the outer race 2 and projects radially beyond the outer race 2 towards the inner race 1. The bottom portion 11 is formed into a disk shape, and its end surface 13 lies within an imaginary cylindrical surface 14 that includes the center M of the rolling element 3. Therefore, for the sealing part 5 there is a sufficiently large fastening surface on the bottom part 11, while the bottom part 11 has an inner ring such that the sealing part 5 can be elastically deformed together with the bottom part 11 without any hindrance. 1 outer surface 6
Keep a large enough distance from

This sealing device has a contact surface 38 formed by the inner wall of the support 8 and a bottom part 11 of the support 8.
Accordingly, it rests directly on the outer surface 9 and end surface 12 of the outer race 2. Cylindrical portion 8' of support 8
The radius of curvature of the transition region 15 from to the bottom part 11 is smaller than the radius of curvature of the curved transition region from the outer surface 9 to the end surface 12 of the outer race 2. This ensures that the bottom part 11 always contacts the end face 12 of the outer ring 2 when the sealing device is attached to the outer ring 2.

The support 8 has a constant outer diameter over its axial length and a substantially uniform thickness over its axial length. However, free end surface 1
Only in the region 6 does the support 8 have a larger internal diameter than in the other regions. The support 8 therefore does not rest directly on the outer surface 9 of the outer ring 2 in the region of its end face 16 . The support 8 therefore has a thinner wall portion 17 whose axial length corresponds to approximately 1/5 to 1/9 of the total axial length of the support 8. Similarly, the bottom part 11 has a constant thickness over its entire radial width, which is equal to the thickness of the cylindrical part 8' of the support 8. The support 8 provides the necessary rigidity to the packing device. The material is metal, but it can also consist of other suitable materials. Advantageously, the thickness of the support 8 is less than 0.3 mm, so that the thickness of the sealing device is only small and the outer diameter of the rolling bearing is only slightly increased. Therefore, a large installation space is not required for installing a rolling bearing equipped with a sealing device.

The support 8 is provided with a coating 18 made of elastomer on its outer surface. The covering portion 18 includes a cylindrical portion 19 placed on the cylindrical portion 8′ of the support 8;
It has a radially located disc-shaped part 20 which completely covers the bottom part 11 of the support 8 with its outer surface.
The cylindrical part 19 engages the end face 16 of said thin wall part 17 and by means of an annular part 21 the wall part 17
to be joined to the inner wall of the The inner surface of the annular portion 21 forms a continuous extension of the inner surface of the support 8. This sealing device rests on the outer surface 9 of the outer race 2 in the region of the wall section 17, which comprises an annular section 21 of elastomeric material. The annular portion 21 of the covering 18 is considerably thinner than the covering portion resting on the outer surface of the support 8. That is, it is considerably thinner than the covering portion, which has a substantially constant thickness over its entire axial length and radial width. The annular end face 22 of the sheath 18 is flat and perpendicular to the axis of the packing device. An end surface 22 of the covering section 18 is connected to a cylindrical covering surface 24 of the covering section 18 via a conical surface 23 .
The cylindrical covering surface 24 passes through the conical surface 25 to the covering portion 1 located radially with respect to the axis of the packing device.
8 to the flat outer surface 26 of the disc-shaped portion 20. The conical surfaces 23, 25 facilitate the installation of the rolling bearing in the annular groove of the casing that receives the rolling bearing. The end face 22 of the sheathing 18, which is located at a distance from the end face 16 of the support 8, lies in line with the end faces 27, 28 of the outer ring 2 and the inner ring 1, so that in this region the sealing device does not cross over the rolling bearing. It does not protrude and is therefore easy to install.

The cylindrical covering surface 24 of the covering part 18 is provided with a profile 29 so that installation tolerances can be easily corrected without impairing the sealing performance. This irregularly shaped part 2
9 is formed in a wave shape when viewed in cross section along the axial direction,
As a result, grooves are formed which extend over the periphery of the cylindrical covering surface 24 and are in each case separated from one another by ridges. When the rolling bearing is inserted into the annular groove of the casing, the raised part is deformed in the axial direction according to the installation tolerance and is pushed away in the axial direction so as to fill the adjacent groove, so that the covering part 18 is not easily installed. It has a smooth cylindrical outer surface.

The outer surface 26 of the disc-shaped portion 20 of the sheath 18 is flat and lies perpendicular to the axis of the packing device.

The disc-shaped part 20 of the covering part 18 transitions into a sealing part 5 which is located at an acute angle to the axis of the packing device and projects into the space surrounded by the cylindrical packing part. Outer surface 2 of disc-shaped portion 20
6 transitions into the outer surface 30 of the sealing part 5 in the form of a circular arc.
This outer surface 30 transitions approximately perpendicularly to the end surface 31 of the sealing part 5 under the formation of a sealing edge 7 . Furthermore, the end surface 31 transitions in an arcuate fashion into an inner surface 32 which converges in the direction of the bottom part 11 in relation to the outer surface 30 . Due to this configuration, the sealing part 5 is formed in the shape of a truncated cone, and its cross section tapers from the end face 31. The inner surface 32 of the sealing part 5 transitions in an arcuate manner into an inner surface 33 of the disc-shaped covering part 34, which is located perpendicularly to the axis of the sealing device. The disc-shaped covering part 34 joins the inner surface of the bottom part 11 of the support 8 and terminates at a distance from the inner wall 35 of the outer race 2. The thickness of the disc-shaped covering part 34 is thinner than the thickness of the disc-shaped part 20 and approximately equal to the thickness of the annular part 21 of the covering part 18. The bottom part 11 of the support 8 is surrounded at its end face 13 by a covering 18 .

In the installed state, the rolling bearing is joined to the bearing groove of the bearing casing by means of a covering 18. As a result, the introduction of noise into the bearing housing is significantly prevented, so that only very low noise is generated during operation. Furthermore, since the covering portion 18 is made of an elastomer material, vibrations of the entire bearing can be effectively suppressed. The elastomeric composite also prevents unduly high thermal blockage from the casing to the rolling bearing, so that the rolling bearing does not become excessively heated during operation.

The packing device shown in FIG. 5 is different from the packing device shown in FIG.
9b. Covering part 1
The end face 22b of 8b transitions via a conical surface 43 to the inner wall 44 of the cylindrical inner covering part 39b.
The inner wall 44 has a profile 42b with a corrugated cross section, so that the sealing device can be mounted without difficulty on a rolling bearing even if the tolerances of the outer circumference of the rolling bearing are relatively large. The cylindrical inner covering portion 39b extends to the inner surface 45 of the bottom portion 11b of the support 8b. This packing device is the fourth
The packing device shown in the figure is similar, but the holding portion 4b
Since it is shaped like a cap, it can be easily attached to a rolling bearing. In the installed state of the packing device, the bottom portion 11b of the support 8b is attached to the outer race 2 of the rolling bearing by means of its inner surface 45.
This is obtained when joining to the end surface 12b of.

The packing device shown in FIG. 6 has, as a holding portion, a cylindrical support 8c and a coating layer 46 that covers the inner surface of the support 8c over substantially its entire axial length. The support 8c is preferably made of metal and has a constant thickness over its entire length and around its circumference. The support 8c is therefore simply produced by cross-cutting the tube. The coating layer 46 is considerably thinner than the thickness of the support 8c and is used to improve the adhesion of the support 8c on the outer race 2 of the rolling bearing. Support 8
The end surface 16c of c is located slightly rearward with respect to the end surfaces 27 and 28 of the outer race 2 and the inner race 1,
As a result, the end faces 27, 28 of both races form one end of a rolling bearing with the present packing device.
The other end of the support 8c projects beyond the rolling bearing in the axial direction. The protruding portion 47 is the sealing portion 5c
Used for fixing. The sealing part 5c is formed as a lip-like seal and is secured to the outer surface 6 of the inner race 1 of the rolling bearing by means of a pivoting sealing ridge 7c.
is placed on top. The sealing part 5c is also arranged at an acute angle to the axis of the sealing device and projects into the space surrounded by the support 8c. The sealing part 5c transitions into a disc-shaped coupling member 48 located perpendicular to the axis of the sealing device. The coupling member 48 is spaced apart from the end faces 12, 49 of the outer race 2 and the inner race 1. Furthermore, the coupling member 48 has an outer edge 50 that
The projecting portion 47 is formed to increase in thickness in the direction of the support 8c which engages the thickened outer edge 50. The support body 8c is therefore surrounded by a thick outer edge 50 at its end face over its entire circumference. Coating layer 46 extends to outer edge 50. The sealing part 5c and the connecting member 48 are made of elastomeric synthetic material. The sealing part 5c has a rectangular cross-section, which tapers slightly in the direction of the free end, in the axial cross-section in FIG.
Outer surface 30c forming sealing edge 7c of sealing portion 5c
and 31c are located at obtuse angles to each other and are each located obliquely to the axis of the packing device.

Also in the sealing device shown in FIG.
It is combined with f. Projecting portion 47 of support body 8f
f is embedded with its free end into the thickened outer edge 50f of the coupling member 48f, so that the protruding portion 47f overlaps the outer edge 50f on the outer surface and on the inner surface.
surrounded by. However, the inner surface portion 53 of the outer edge 50f extends to the end face 16f of the support 8f and thus forms an inner covering portion 39f which surrounds the support 8f on its inner surface over its entire circumference.
The inner covering portion 39f includes, on its inner surface, a deformed portion 42f whose cross section in the axial direction is formed in a waveform. Furthermore, the inner covering part 39f is integrally formed with the coupling member 48f and the sealing part 5f. The profile 42f ensures easy attachment of the packing device to the rolling bearing.

The packing device shown in FIG. 8 is different from the packing device shown in FIG. 7 in that the outer surface portion 54 of the thick outer edge 50g, rather than the inner surface, reaches the end surface 16g of the cylindrical support 8g and extends over the entire length. 8g support
It extends to the outer covering portion 19g provided above. The outer sheathing part 19g has a profiled part 29g having a corrugated axial cross-section and is integrally formed with the coupling member 48g and the sealing part 15g. The profile 29g ensures easy attachment of the sealing device to the bearing casing that receives the rolling bearing. The packing device shown in FIG. 8 allows the installation tolerance of the mounting hole in the bearing casing to be corrected by the irregularly shaped portion 29g, while the packing device shown in FIG. Therefore, it can be corrected. Since the inner sheathing part 39f or the outer sheathing part 19g consists of the same material as the sealing parts 5f, 5g, a sealing on the outer surface of the rolling bearing or on the outer surface of the sealing device is also obtained. Sealing parts 5f and 5g placed on the outer surface of the inner race of the rolling bearing
This seals the rolling bearing and prevents dirt from entering the rolling elements.

In the packing device shown in FIG. 9, both portions 53h and 54h of the outer edge 50h are inner and outer portions that cover the cylindrical support 8h over its entire circumference and over its entire axial length. Covered part 39h
and extends to the outer covering portion 19h. Only the end face 16h which shares a radial plane of the packing device with the ends of the inner sheathing portion 19h and the outer sheathing portion 39h and lies within that plane is free. The inner covering portion 19h and the outer covering portion 39h each include a deformed portion 29h. This irregularly shaped portion 29h optimizes the installation when the installation space in the radial direction can be fully utilized.

The related technology described above is an example applied to a rolling bearing, but it can also be applied to a sliding bearing, so this will be described below.

The packing device shown in FIG. 10 consists of a cylindrical plain bearing 3 on which a shaft 37 is rotatably supported.
6. This packing device has a support 8a which is formed in a cylindrical shape and projects axially beyond the plain bearing 36 at one end. At this end, the support 8a is bent downwards at right angles in the direction of a bottom part 11a, which is located perpendicular to the axis A of the packing device and is formed in the form of a disk. The support 8a and its bottom portion 11a are
It has a constant thickness over its entire length and around its entire circumference. The radial length of the bottom portion 11a is considerably shorter than the axial length of the cylindrical support 8a. The support 8a forms part of the holding part 4a of the packing device. The sealing part 5a is formed as a lip-shaped seal and rests on the shaft 37 at an axial distance from the plain bearing 36 by a sealing edge 7a. The sealing part 5a is formed in the same way as in the packing device shown in FIG.

The holding portion 4a has a covering portion 18a made of an elastomer material on the outside of the support 8a. The covering portion 18a is provided on the outer surface and the inner surface of the support 8a, and completely covers the support 8a. Thereby, the sealing device is mounted not by the support 8a, but by the cylindrical inner sheathing part 39, which is joined to the inner wall 38a of the cylindrical support 8a.
6 is placed on the outer surface 40 of 6. The cylindrical outer covering part 19a, which is joined to the outer surface 41 of the cylindrical support 8a, is formed similarly to the outer covering part 19 of the packing device of FIG. Inner covering part 3
9 is provided with an irregularly shaped portion 42 having a wave-shaped cross section in the axial direction on its inner wall. This irregularly shaped portion 42 is formed in the same manner as the irregularly shaped portion 29a on the outer surface of the outer covering portion 19a. When the sealing device is mounted on the plain bearing 36, tolerances in the construction of the plain bearing 36 can be easily compensated for by means of the inner profile 42. If the plain bearing 36 has a suitably large external diameter, the ridges of the profiled section 42 extending beyond the circumferential surface of the sheathing section 18a are pushed aside in the axial direction, so that these ridges overlap the adjacent strips. fill the gap. Since the outer deformed portion 29a is also provided, tolerances on the bearing casing side can be corrected during attachment to the bearing casing, as explained in connection with the packing device in FIG. 4.

Covering portion 34 located radially with respect to the axis A of the packing device and joining to the inner surface of the bottom portion 11a
a transitions into an inner covering part 39 extending over the entire axial length of the cylindrical holding part 4a. The thickness of the cylindrical outer covering portion 19a and the inner covering portion 39 are equal, while the thickness of the covering portion 34a is only approximately half the thickness of these cylindrical covering portions. Since the support body 8a is completely embedded within the covering part 18a, the noise during operation can be considerably reduced. Further, since the covering portion 18a is made of an elastomer material, the vibration of the sliding bearing 36 can be suppressed to a considerable extent by the covering portion 18a. Heat transfer from the bearing casing to the plain bearing is carried out by the support 8
By completely embedding a in the covering portion 18a, it is possible to prevent the sliding bearing from being heated unduly strongly and to prevent the sliding friction characteristics from being impaired.

In the embodiments of the invention and related art described above, the inner and outer covering portions can be adhered to the support, in particular baked onto the support, so that the support and the covering portion are held firmly together. It can be fixed.

〔Effect of the invention〕

In the sealing device according to the invention, the carrier has an inner jacket part and an outer jacket part, so that metal contact between the sealer and the rolling bearing (particularly with the carrier, which is advantageously made of metal) is prevented. Therefore, generation of noise due to this metal contact can be prevented.

The inner sheathing between the outer race and the support of the rolling bearing prevents the transmission of noise and vibrations from the rolling bearing to the bearing casing. The inner coating also prevents contact wear between the support and the outer race of the rolling bearing, so that the rolling bearing is not damaged. According to the invention, on the other hand, the transition area from the cylindrical part to the bottom part of the support body is not provided with an outer covering part and the support body is exposed, so that it is possible to attach the packing device to the rolling bearing. The installation tool can be easily applied to the exposed parts without damaging the packing device and the bearing casing. Also, there should be enough free play to insert the installation tool into the bearing casing to the appropriate depth.
is formed between the bearing housing and the sealing device, so that a perfect fastening of the sealing device is ensured.

[Brief explanation of drawings]

FIG. 1 to FIG. 3 are diagrams showing different embodiments of the packing device according to the present invention, and FIG. 4 to FIG. 10 are diagrams showing related technology of the present invention.
4 to 9 are diagrams in which the present invention is applied to a rolling bearing, and FIG. 10 is a diagram in which the present invention is applied to a sliding bearing. 1...Inner lace, 2...Outer lace, 5d; 5i; 5
m... sealed portion, 8d; 8i; 8m... support, 8
d';8i';8m'... Cylindrical part of support, 11d; 1
1i; 11m...bottom part of support, 15d; 15
i; 5m...transition area, 19d, 52; 19i, 5
2i; 19m, 52m...outer covering part, 39d,
51; 39i, 51i; 39m, 51m...Inner covering portion.

Claims (1)

[Scope of Claims] 1. A packing device for a rolling bearing comprising an inner race 1 and an outer race 2, the inner covering portion 39 being made of an elastic material on at least a portion of the inner surface.
d, 51; 39i, 51i; 39m, 51m, and the inner covering portion 39d, 51; 39i, 51
In a packing device for a rolling bearing, the sealing portions 5d, 5i; 5m are in contact with the inner race 1, and the inner covering portions 39d, 51; 39i, 51i;
39m and 51m are provided on the support 8d; 8i; 8m, and the support 8d; 8i;
8i';8m' and bottom part 11d; 11i; 11m
, outer covering portions 19d, 52; 19i, 52i; 19m, 5 provided on the opposite side from the outer race 2;
2m and a transition area 15 from the bottom part 11d; 11i; 11m to the cylindrical part 8d';8i';8m'
On the side of d; 15i; 15m opposite to the outer race 2, the support 8d; 8i; 8m is exposed; and the inner covering parts 39d, 51; 39i, 51i;
39m, 51m, bottom part 11d; 11i; 1
The portion 51; 51i; 51m provided at 1 m is
The sealing part 5d; 5i; 5m is connected to the support body 8d; 8i;
Connecting member 48d; 48i connected to 8m;
48m, the coupling member 48d; 4
8i; 48m is the bottom part 11d; 11i; 11m
A packing device for a rolling bearing, characterized in that the packing device surrounds the radially inner edge of the rolling bearing. 2 The outer surface of at least one of the outer covering portion 19d; 19m and the inner covering portion 39d is an irregularly shaped portion 29d,
42d; 29m. The packing device for a rolling bearing according to claim 1. 3. A covering part 18d comprising an inner covering part 39d and an outer covering part 19d provided on the cylindrical part 8d' of the support body 8d is made of an elastic material different from that of the sealing part 5d. A packing device for a rolling bearing according to item 1 or 2. 4. The packing for a rolling bearing according to any one of claims 1 to 3, characterized in that the coupling member 48d and the covering portion 18d are arranged with a distance from each other. Device. 5 The connecting member 48i; 48m is connected to the support body 8i;
Claim 1 or 2, characterized in that it is formed integrally with the inner covering portion 39i; 39m provided in the cylindrical portion 8i';
Packing device for rolling bearings described in . 6 Support 8d; 8i; 8m cylindrical portion 8d'; 8
A packing device for a rolling bearing according to any one of claims 1 to 5, characterized in that i';8m' extends over the entire axial length of the rolling bearing. 7. Claims 1 to 6, characterized in that the sealing portion 5m is formed into a substantially cylindrical shape.
A packing device for a rolling bearing as described in any one of the preceding paragraphs. 8. According to claim 7, the coupling member 48m is of frustoconical design and surrounds a radially extending portion 56 of the L-shaped sealing portion 5m in cross section. Packing device for rolling bearings.