JP7316657B2 - Mounting method and sealing structure of slinger member - Google Patents

Description

The present invention relates to a method for mounting a slinger member and a sealing structure for a bearing device to which the mounting method is applied.

Generally, in a bearing device, a slinger member and a seal member having a seal lip in contact with the slinger member are interposed between an inner ring and an outer ring that rotate with respect to each other, thereby sealing between the inner ring and the outer ring. configured to Such sealing prevents muddy water from entering the bearing space, or prevents lubricant such as grease filled in the bearing space from leaking to the outside.

The slinger member is attached, for example, by fitting to the outer peripheral surface of the inner ring on the rotating side. In this case, the slinger member includes a fitting cylindrical portion and a disk portion extending radially outward from one end of the fitting cylindrical portion, and by fitting the fitting cylindrical portion to the inner ring along the axial direction, Mounted. In order to prevent the slinger member from coming off, the outer circumference of the inner ring may be provided with a retaining projection protruding radially outward in proximity to the rear end in the fitting direction of the slinger member in the axial direction. (See Patent Documents 1 and 2, for example).

JP 2014-52070 A Japanese Patent No. 6228756

By the way, in the examples disclosed in Patent Document 1 and Patent Document 2, the retaining protrusions (in Patent Document 1, locking protrusions (see FIG. 5 and related descriptions)), and in Patent Document 2, retaining portions (FIGS. See FIG. 3 and its related description)) is formed in advance on the outer peripheral surface of the inner ring. Therefore, when attaching the slinger member to the inner ring, it is necessary to fit the cylindrical fitting portion onto the inner ring so that the fitting cylindrical portion rides over the retaining protrusion. As a result, warping and plastic deformation of the slinger member may occur, and the fitting interference with the inner ring may decrease. As a result, the desired interference interference between the seal lip and the slinger member cannot be obtained, and there is a concern that the sealing function may deteriorate.

SUMMARY OF THE INVENTION The present invention has been made in view of the actual situation described above. is intended to provide

A method of attaching a slinger member according to a first aspect of the present invention is a method of attaching a slinger member attached to one of two members, the inner and the outer members, which are mutually axially rotated, wherein the slinger member is fitted to the one member. and a disk portion radially extending from an axial end of the fitting cylindrical portion, wherein the slinger member is fitted to the one member along the axial direction of the fitting cylindrical portion. After the mating, the one member is formed with a projection projecting radially so as to axially approach a rear end portion of the fitting cylindrical portion in the fitting direction.

According to the method of attaching the slinger member of the present invention, when the slinger member is attached to one member by fitting, the one member does not have a projection that applies an excessive load to the fitting. The fit is achieved without warping or plastic deformation of the slinger member. After the fitting, the one member is formed with a projection protruding in the radial direction close to the rear end of the fitting cylindrical portion of the slinger member in the fitting direction, thereby preventing the slinger member from coming off. and the intended function of the slinger member is stably exhibited.

In the method of attaching a slinger member according to the present invention, the projection is formed by fitting the fitting cylindrical portion to the one member, pressing the one member along the axial direction, and forming the projection on the one member. It may be formed by deforming a part of the member to protrude in the radial direction.
In this case, the part of the one member has a shape that protrudes from the one member in the axial direction in the opposite direction to the fitting direction, and the protrusion is formed by pressing the part. It may be formed by bending deformation so as to protrude in the radial direction.

In the mounting method of the slinger member of the present invention, a ring member separate from the one member and the slinger member is prepared, and the protrusion is formed by fitting the fitting cylindrical portion to the one member. The ring member may be formed by assembling the ring member to the one member so that a portion of the ring member protrudes radially from the one member.
In this case, the ring member is formed of a flat washer-like member, and the projection attaches the ring member to the one member via an adhesive so that a portion of the ring member protrudes radially from the one member. It may be formed by assembling together.
Further, the ring member is composed of a cylindrical portion and a flange portion which can be caulked and fitted to the one member along the axial direction, and the protrusion is the ring member and a part of the flange portion is the one member. It may be formed by assembling the cylindrical portion to the one member through crimp fitting so as to protrude radially from the member.
Alternatively, the ring member and the one member are provided with concave and convex portions that can be caulked and fitted to each other along the axial direction, and the protrusions are configured such that a part of the ring member has a diameter greater than that of the one member. It may be formed by assembling to the one member through mutual caulking of the concave and convex portions so as to protrude in the direction.

A sealing structure according to a second aspect of the present invention is a sealing structure for a bearing device to which any one of the slinger member mounting methods described above is applied, wherein the two mutually axially rotating inner and outer members are attached to the bearing device. The slinger member is attached to the one member of the two members by any of the attachment methods described above, and the other member of the two members is in contact with the slinger member. A seal member having a seal lip is attached, and the slinger member and the seal member are configured to seal between the inner and outer members.

According to the sealing structure of the present invention, since the slinger member is maintained in a stable attachment state at a predetermined position without warping or plastic deformation, the desired contact interference state with the seal member is maintained. . As a result, the sealing accuracy of the bearing device can be stabilized.

According to the slinger member mounting method and sealing structure of the present invention, the slinger member can be mounted without warping or plastic deformation. can be achieved.

1(a) is a longitudinal sectional view schematically showing a bearing device to which the slinger member mounting method and sealing structure of the present invention are applied; FIG. It is an enlarged view of the X section of FIG. 1A and 1B are process diagrams showing a first embodiment of a method for attaching a slinger member according to the present invention, in which (a) shows the process before fitting the slinger to the object to be installed, and (b) shows the process before fitting the slinger member to be installed. (c) shows the step of forming a projection on the object to be attached, respectively. It is the same figure as FIG.3(a)(b)(c) which shows the modification of the same embodiment. It is the same figure as FIG.3(a)(b)(c) which shows 2nd embodiment of the attachment method of the slinger member which concerns on this invention. It is the same figure as FIG.3(a)(b)(c) which shows the modification of the same embodiment. It is the same figure as FIG.3(a)(b)(c) which shows the 2nd modification of the same embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a bearing device 1 that supports a wheel (not shown) of an automobile so that it can rotate about an axis L (axial rotation). This bearing device 1 is a hub bearing, and generally consists of an outer ring (the other member of two inner and outer members) 2, a hub wheel 3, and an inner ring member 4 fitted integrally with the hub wheel 3 on the vehicle body side. and two rows of rolling elements (balls) 6 interposed between the outer ring 2, the hub ring 3, and the inner ring member 4. In this example, the hub wheel 3 and the inner ring member 4 constitute an inner ring (one member of two inner and outer members) 5 . The outer ring 2 is fixed to the vehicle body (not shown) of the automobile. A drive shaft 7 is coaxially spline-fitted to the hub wheel 3 , and the drive shaft 7 is connected to a drive source (drive transmission section) (not shown) through a constant velocity joint 70 . The drive shaft 7 is integrated with the wheel hub 3 by a nut 71 to prevent the wheel hub 3 from coming off from the drive shaft 7 . The inner ring 5 (the hub ring 3 and the inner ring member 4) is rotatable (coaxially rotated) with respect to the outer ring 2, and an annular bearing space S is formed between the outer ring 2 and the inner ring 5. be. In the bearing space S, two rows of rolling elements 6 are held by a retainer 6a to allow the bearing ring 2a of the outer ring 2, the hub ring 3, and the bearing rings 3a and 4a of the inner ring member 4 to roll. intervened. The hub wheel 3 has a cylindrical hub wheel main body 30 and a hub flange 32 formed to extend radially outward from the hub wheel main body 30 via a rising base portion 31 . A wheel is attached and fixed by a nut (not shown).
Hereinafter, the side facing the wheels along the direction of the axis L (the side facing the left in FIG. 1) will be referred to as the wheel side, and the side facing the vehicle body (the side facing the right in FIG. 1) will be referred to as the vehicle body side.

Bearing seals (sealing devices) 8 and 9 are provided between the outer ring 2 and the inner ring member 4 and between the outer ring 2 and the hub ring 3 at both ends along the axis L direction of the bearing space S. It is mounted, and both ends of the bearing space S along the direction of the axis L are sealed. As a result, muddy water or the like is prevented from entering the bearing space S and the lubricant (grease or the like) filled in the bearing space S is prevented from leaking to the outside. The slinger member mounting method and sealing structure according to the present invention are applied to, for example, the vehicle body side bearing seal 8 and the wheel side bearing seal 9 in the bearing device 1 .

Hereinafter, the wheel-side bearing seal 9 to which one example of the slinger member mounting method and sealing structure according to the present invention is applied will be described with reference to FIG. 2 as well. The illustrated bearing seal 9 is configured by combining a slinger member 10 attached to the hub wheel 3 forming the inner ring 5 and a seal member 20 attached to the outer ring 2 . The slinger member 10 includes a fitting cylindrical portion 11 externally fitted (fitted) to the outer peripheral surface 30a of the hub wheel main body 30 of the hub wheel 3 constituting the inner ring 5, and an axial end of the fitting cylindrical portion 11 on the wheel side. A disc portion 13 extends radially outward from the portion 11 a along the vehicle body side surface 32 a of the hub flange 32 via the curved portion 12 . The slinger member 10 is attached to a predetermined position of the hub bearing 3 by a method to be described later. A protrusion 30c protruding in the outer diameter direction so as to approach the direction of the axis L is described later on the rear end portion 11c of the fitting cylindrical portion 11 of the slinger member 10 attached at this predetermined position in the fitting direction a. formed by the method.

The seal member 20 is composed of a core metal 21 fitted in the wheel-side inner peripheral surface 2b of the outer ring 2, and a lip member 22 made of an elastic material such as rubber integrated with the core metal 21 by insert molding. The lip member 22 has three sealing lips 23 , 24 , 25 which contact the slinger member 10 . More specifically, the first seal lip 23 is a radial lip and elastically contacts the outer peripheral surface 11 b of the fitting cylindrical portion 11 . The second seal lip 24 is an axial lip and elastically contacts the concave curved surface 12 a of the curved portion 12 . Further, the third seal lip 25 is an axial lip and elastically contacts the vehicle body side surface 13a of the disk portion 13. As shown in FIG. 2 indicate the original shape of the seal lips 23, 24, 25 before elastic deformation. The core bar 21 includes a cylindrical portion 211 fitted to the wheel-side inner peripheral surface 2b of the outer ring 2, and a curved inward flange portion 212 extending radially inward from the vehicle body-side end portion 211a of the cylindrical portion 211. The lip member 22 covers from the wheel-side end 211b of the cylindrical portion 211 to the inner peripheral surface 211c of the cylindrical portion 211 and the wheel side surface 212a of the inward flange 212, and extends to the inner diameter-side end 212b of the inward flange 212. Furthermore, it is integrated with the cored bar 21 . The lip member 22 further extends around the wheel-side end portion 211b of the cylindrical portion 211 to form an annular protrusion 26 interposed in a compressed state between the wheel-side inner peripheral surface 2b of the outer ring 2 and the outer peripheral surface 211d of the cylindrical portion 211. I have. In FIG. 2, the original shape of the annular protrusion 26 before compression deformation is indicated by a chain double-dashed line.

The slinger member 10 is attached to the hub wheel 3 (inner ring 5) so that the disk portion 13 is on the wheel side. FIGS. 3(a), 3(b), 4(c) and 4(a), 4(b), and 4(c) show the first embodiment and its modification of the method of attaching the slinger member 10 according to the present invention. In these examples, after the slinger member 10 is attached to the hub wheel 3 by fitting, a protrusion 30c, which will be described later, is formed by pressing the hub wheel 3 along the direction of the axis L so that a part of the hub wheel 3 is radially deformed. It is characterized by being formed by deforming it to protrude in a direction.

3(a), 3(b), and 3(c), as also shown in FIG. 2, the mounting portion of the slinger member 10 on the outer peripheral surface 30a of the hub wheel main body 30 is located in the bearing space via the stepped wall portion 30b. It is formed to have a larger diameter than the S side. 3(a) and 3(b), the slinger member 10 is fixed to the end portion (rear side end portion in the fitting direction a) 11c of the fitting cylindrical portion 11 opposite to the disk portion 13. A tool (not shown) is operated to press-fit the fitting cylindrical portion 11 into the large-diameter portion of the hub wheel body 30 along the direction of the white arrow (fitting direction) a along the direction of the axis L. As shown in FIG. This press-fitting is performed until the disk portion 13 comes into contact with the vehicle body side surface 13a of the hub flange 32. As shown in FIG. 3(c), a portion 30c0 of the outer diameter side portion of the stepped wall portion 30b of the hub wheel main body 30 is pressed along the same direction as the fitting direction a (the direction of the outlined arrow b). Then, the part 30c0 is deformed to protrude from the outer peripheral surface 30a of the hub wheel main body 30 in the outer diameter direction, and the rear end of the fitting cylindrical portion 11 in the fitting direction a (the end opposite to the disk portion 13) is deformed. part) forming a protrusion 30c close to 11c. This completes the attachment of the slinger member 10 to the hub ring 3 (inner ring 5). Subsequently, the assembly of the bearing device 1 is completed by assembling the outer ring 2, to which the seal member 20 is attached in advance at a predetermined position, to the hub wheel 3 via the rolling elements 6, etc. As shown in FIG.

In the bearing device 1 in which the slinger member 10 is attached and the outer ring 2 is assembled together with the seal member 20 as described above, the inner ring 5 rotates (axially rotates) around the axis L as the bearing device 1 is operated, and the seal lip 23 , 24 , 25 are in elastic relative sliding contact with the slinger member 10 . Thus, the slinger member 10 and the seal member 20 form a sealing structure. Therefore, muddy water or the like is prevented from entering the bearing space S, and the lubricant filled in the bearing space S is prevented from leaking to the outside. In addition, since the annular projection 26 is interposed in a compressed state at the mounting portion of the seal member 20 to the outer ring 2, muddy water or the like is prevented from entering the metal fitting portion between the outer ring 2 and the core metal 2. There is little concern that the metal fitting portion will rust.

When the slinger member 10 is attached to the inner ring 5 by fitting, since there is no projection that applies an excessive load to the fitting, the slinger member 10 can be fitted without warping or plastic deformation. be. Therefore, the fitting interference does not fluctuate, and the slinger member 10 is maintained in a stable fitted state. Moreover, after the slinger member 10 is fitted, the inner ring 5 is formed with the protrusion 30c protruding in the radial direction close to the rear end of the fitting cylindrical portion 11 of the slinger member 10 in the fitting direction a. , the detachment of the slinger member 10 is prevented, and the desired function of the slinger member 10 is exhibited stably. In particular, as the inner ring 5 rotates, the slinger member 10 is maintained at a predetermined position without being displaced in the direction of the axis L, so that the contact interference between the seal lips 23, 24, and 25 with respect to the slinger member 10 is as desired. state, thereby exerting a stable sealing function of the bearing seal 9. In addition, since the protrusion 30c is formed by pressing the hub wheel 30, the slinger member 10 can be mounted without any additional member, the number of man-hours and costs can be suppressed, and the load increase is small.

In the example shown in FIGS. 4(a), 4(b) and 4(c), a portion 30c0 of the outer diameter side portion of the stepped wall portion 30b of the hub wheel main body 30 is formed in advance as shown in FIG. 4(a). It is shaped so as to protrude from the portion 30b along the direction of the axis L in the direction opposite to the fitting direction a. 4(a) and 4(b), the fitting cylindrical portion 11 is aligned with the large diameter portion of the hub wheel main body 30 along the axis L direction, as in the case of FIGS. 3(a) and 3(b). They are press-fitted along the outline arrow direction (fitting direction) a. 4(c), the portion 30c0 of the hub wheel main body 30 having the protruding shape is press-formed along the direction of the outlined arrow b, and the portion 30c0 is formed into the hub wheel main body 30. The projection 30c is bent and deformed so as to protrude radially outward from the outer peripheral surface 30a to form a protrusion 30c close to the rear end 11c of the fitting cylindrical portion 11 in the fitting direction a. Also in this case, the protrusion 30c exhibits the same function as described above. In addition, the slinger member 10 can be mounted without additional members, with reduced man-hours and costs, and with less increase in load.
Since other configurations are the same as those of the example shown in FIG. 3, common parts are denoted by the same reference numerals and explanations thereof are omitted.
In the present embodiment, the bearing ring 3a is separated from the slinger fitting surface of the inner ring to which the fitting cylindrical portion 11 of the slinger member 10 is fitted. is provided, and the protrusion 30c is formed by pressing a part of the stepped wall portion 30b. It is also possible to form the protrusions similar to those described above by pressing the vicinity of the boundary between .

FIGS. 5(a)(b)(c) to 7(a)(b)(c) show a second embodiment of the method for attaching the slinger member 10 according to the present invention and its modification. In these examples, the ring member 15 is prepared separately from the inner ring 5 and the slinger member 10, and after the slinger member 10 is attached to the hub wheel 3 by fitting, the ring member 15 is partly attached to the hub wheel main body 30. It is characterized by being attached to the hub wheel main body 30 so as to protrude further in the radial direction. In these examples, the part concerned of ring member 15 constitutes projection 15a mentioned below.

5(a), 5(b) and 5(c), the ring member 15 is shaped like a flat washer, and its outer diameter is larger than the diameter of the large diameter portion of the hub wheel main body 30. In the example shown in FIGS. Further, when the slinger member 10 is fitted to the hub wheel body 30 at a predetermined position, the stepped wall portion 30b of the hub wheel body 30 is substantially the same as the rear end portion 11c of the fitting cylindrical portion 11 of the slinger member 10. They are formed to be flush with each other. 5(a) and 5(b), the cylindrical fitting portion 11 is attached to the large diameter portion of the hub wheel main body 30 in the direction of the white arrow (fitting direction) along the direction of the axis L in the same manner as in the above examples. ) press fit along a. Thereafter, in the step shown in FIG. 5(c), the ring member 15 is applied with the adhesive 16 to the stepped wall portion 30b so that a portion of the outer diameter side of the ring member 15 protrudes radially outward from the outer peripheral surface 30a of the hub wheel main body 30. Assemble and fix via As a result of this assembly, a portion of the ring member 15 on the outer diameter side is fixed so as to protrude radially outward from the outer peripheral surface 30a of the hub wheel body 30, and the portion is fixed to the fitting cylindrical portion 11 in the fitting direction a. A projection 15a protrudes radially so as to be close to the rear end 11c in the direction of the axis L. As shown in FIG.

In the bearing device 1 to which the slinger member 10 is attached and the outer ring 2 is assembled as described above, the inner ring 5 rotates (axially rotates) around the axis L as the bearing device 1 is operated, and the seal lips 23, 24, . 25 is in elastic relative sliding contact with the slinger member 10 . Thus, the slinger member 10 and the seal member 20 form a sealing structure. Therefore, muddy water or the like is prevented from entering the bearing space S, and the lubricant filled in the bearing space S is prevented from leaking to the outside. When the slinger member 10 is attached to the inner ring 5 by fitting, since there is no projection that applies an excessive load to the fitting, the slinger member 10 can be fitted without warping or plastic deformation. be. Moreover, after the slinger member 10 is fitted, the inner ring 5 is formed with the protruding portion 15a protruding in the radial direction close to the rear end portion 11c of the fitting cylindrical portion 11 of the slinger member 10 in the fitting direction a. Therefore, the slinger member 10 is prevented from slipping off, and the desired function of the slinger member 10 is stably exhibited. In particular, as the inner ring 5 rotates, the slinger member 10 is maintained at a predetermined position without being displaced in the direction of the axis L, so that the contact interference between the seal lips 23, 24, and 25 with respect to the slinger member 10 is as desired. state, which provides a stable sealing function. Further, by bonding and fixing the ring member 15 to the hub wheel 30, the projecting portion 15a can be formed with high dimensional accuracy.

In the example shown in FIGS. 6(a), 6(b) and 6(c), an annular protrusion 30d extending in the opposite direction to the fitting direction a is formed on the outer diameter side portion of the stepped wall portion 30b of the hub wheel main body 30. . The ring member 15 is composed of a cylindrical portion 150 that can be caulked and fitted to the hub wheel main body 30 along the direction of the axis L, and a flange portion 151 that extends radially from one end of the cylindrical portion 150 . The outer diameter of the flange portion 151 is larger than the diameter of the large diameter portion of the hub wheel main body 30 . Further, the cylindrical portion 150 of the ring member 15 is shaped so as to be caulked (inwardly fitted) into the annular projection 30d along the axis L direction. 6(a) and 6(b), the cylindrical fitting portion 11 is attached to the large diameter portion of the hub wheel main body 30 in the direction of the white arrow (fitting Direction) is press-fitted along a. 6(c), the cylindrical portion 150 of the ring member 15 is caulked and fitted to the annular protrusion 30d along the direction of the white arrow c, and a portion of the flange portion 151 is attached to the hub wheel main body 30. is attached to the hub wheel main body 30 so as to protrude radially outward from the outer peripheral surface 30a. The part of the flange 151 is a projecting portion 15a projecting radially so as to be close to the rear end portion 11c of the fitting cylindrical portion 11 in the fitting direction a in the axial L direction.
Also in this example, the protrusion 15a has the same function as the example shown in FIG. Further, by crimping the cylindrical portion 150 onto the annular protrusion 30d, the protrusion 15a can be formed with high dimensional accuracy.

In the example shown in FIGS. 7(a), (b) and (c), the stepped wall portion 30b of the hub wheel body 30 and the ring member 15 are provided with uneven portions that can be caulked and fitted together along the axis L direction. ing. Specifically, the stepped wall portion 30b is provided with a concave portion 30e that is recessed in the axial direction, and the ring member 15 is provided with a convex portion 15b that is protruded in the axial direction. The recessed portion 30e and the projecting portion 15b are configured to face each other in the direction of the axis L so as to be crimp-fitted. Also, the outer diameter of the ring member 15 is larger than the outer diameter of the hub wheel main body 30 . 7(a) and 7(b), the cylindrical fitting portion 11 is attached to the large-diameter portion of the hub wheel main body 30 in the direction of the white arrow (fitting Direction) is press-fitted along a. Thereafter, in the step shown in FIG. 7(c), the ring member 15 is caulked and fitted with its convex portion 15b into the concave portion 30e along the direction d of the white arrow, and a part of the outer diameter side of the ring member 15 is a hub. It is attached to the hub wheel main body 30 so as to protrude radially outward from the outer peripheral surface 30a of the wheel main body 30. - 特許庁The part of the ring member 15 is a projecting portion 15a projecting radially so as to be close to the rear end portion 11c of the fitting cylindrical portion 11 in the fitting direction a in the axial L direction.
Also in this example, the protrusion 15a has the same function as the example shown in FIG. Further, by caulking the projection 15b into the recess 30e, the projection 15a can be formed with high dimensional accuracy.

In each of the above-described embodiments, the object to which the slinger member mounting method of the present invention is applied is a bearing device such as a hub bearing. It is not limited to the apparatus, and may be other industrial machines as long as they are composed of two members, inner and outer, which are axially rotated with respect to each other. Further, the shape and formation mode of the protrusion 30c (15a) are not limited to those illustrated, and it is possible to adopt other shapes. Furthermore, the protrusion 30c (15a) may be formed in a ring shape that is continuous in the circumferential direction, or may be formed in a plurality intermittently in the circumferential direction. Whether the protrusion 30c (15a) is formed in a continuous annular shape in the circumferential direction or intermittently formed in the circumferential direction depends on the selection of the shape of the die of the press machine in the case of the first embodiment and the shape of the die of the second embodiment. In the case of the form, it can be carried out appropriately by setting the shape of the ring member 5 or the like.

In each of the above-described embodiments, the inner ring 5 of the bearing device 1 is on the rotating side and the outer ring 2 is on the stationary side, but the outer ring 2 may be on the rotating side and the inner ring 5 may be on the stationary side. In this case, the slinger member 10 is attached to the outer ring 2 and the seal member 20 is attached to the inner ring 5 . Each portion facing the radial direction faces in the direction opposite to that in each of the above examples. Furthermore, the present invention can also be applied to the bearing seal 8 on the vehicle body side. In addition, the shapes of the slinger member 10 and the seal member 20 can also be changed as appropriate according to application locations, specifications, and the like.

1 hub bearing (bearing device)
2 Outer ring (other member)
3 Hub ring (inner ring)
5 Inner ring (one member)
REFERENCE SIGNS LIST 10 slinger member 11 fitting cylindrical portion 11a axial end portion 11c rear end portion in the fitting direction 12 disk portion 15 ring member 150 cylindrical portion 151 flange portion 16 adhesive 20 sealing member 23, 24, 25 sealing lip 30c, 15a Projection 30c0, 15a Part a Fitting direction L Axis

Claims (8)

A method for attaching a slinger member to be attached to one of two members, the inner and outer members that rotate about each other, comprising:
The slinger member includes a fitting cylindrical portion fitted to the one member, and a disk portion extending radially from an axial end of the fitting cylindrical portion,
After the fitting cylindrical portion of the slinger member is fitted to the one member along the axial direction, a slinger member is axially fitted to the rear end portion of the fitting cylindrical portion in the fitting direction to the one member. A method for mounting a slinger member, characterized in that a radially protruding projection is formed so as to be close to the . In the method of attaching the slinger member according to claim 1,
After the fitting cylindrical portion is fitted to the one member, the protrusion is formed by pressing the one member along the axial direction so that a part of the one member is deformed to protrude in the radial direction. A method of attaching a slinger member, characterized in that the slinger member is formed by In the mounting method of the slinger member according to claim 2,
The part of the one member has a shape that protrudes from the one member in the axial direction in the opposite direction to the fitting direction, and the protrusion is formed by pressing the part in the radial direction. A method for attaching a slinger member, characterized in that the slinger member is formed by bending and deforming it so as to protrude. In the method of attaching the slinger member according to claim 1,
preparing a ring member separate from the one member and the slinger member;
After fitting the fitting cylindrical portion to the one member, the ring member is assembled to the one member such that a part of the ring member protrudes radially from the one member. A mounting structure for a slinger member characterized by being formed by: In the mounting method of the slinger member according to claim 4,
The ring member is made of a flat washer-shaped member,
The protrusion is formed by assembling the ring member to the one member with an adhesive so that a portion of the ring member protrudes radially from the one member. Mounting method. In the mounting method of the slinger member according to claim 4,
The ring member comprises a cylindrical portion and a flange portion that can be caulked and fitted to the one member along the axial direction,
The protrusion is formed by assembling the ring member by caulking the cylindrical portion to the one member such that a portion of the flange portion radially protrudes from the one member. A method for attaching a slinger member, characterized by: In the mounting method of the slinger member according to claim 4,
The ring member and the one member have concave and convex portions that can be caulked and fitted to each other along the axial direction,
The protrusion is formed by assembling the ring member to the one member through mutual caulking of the concave and convex portions so that a portion of the ring member protrudes radially from the one member. A method for attaching a slinger member, characterized by: A sealing structure for a bearing device to which the slinger member mounting method according to any one of claims 1 to 7 is applied,
The two inner and outer members that axially rotate with each other are an inner ring and an outer ring of the bearing device,
The slinger member is attached to the one member of the two members by the attachment method according to any one of claims 1 to 7,
A seal member having a seal lip that contacts the slinger member is attached to the other member of the two members,
A sealing structure, wherein the slinger member and the sealing member are configured to seal between the inner and outer members.

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