JP2003206965A - Rolling bearing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem of lowering in braking performance and generation of abnormal noises or vibrations when a brake pads are brought into contact with a braking face, due to a brake disc inclined in an axial direction with respect to a plane perpendicular to the axial center when the brake pads are brought into press-contact with the braking face to heat the brake disc and then to be expanded by the heat, in a bearing device for a vehicle wheel. <P>SOLUTION: A fixing portion 28 of the brake disc 7 is formed separately from braking plates 29A, 29B, which is caught in an axial center 5 direction by a connecting member 43 having elastic force with respect to the fixing portion 28. Therefore, play of the braking plates 29A, 29B with respect to a fixing flange 38 is reduced. When the brake pad 16 is brought into press-contact with braking plates 29A, 29B from both sides in the axial center 5 direction of the braking plates 29A, 29B, and the braking plates 29A, 29B are gradually heated, braking plates 29A, 29B are independently expanded by the heat in the radial direction without influence on the fixing portion 28. Therefore, the inclination of the braking plates 29A, 29B with respect to the axial center 5 is prevented, and thereby occurrence of the abnormal noises and vibrations is prevented. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolling bearing device for wheels, for example, and more particularly to a brake disc mounting structure thereof.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
There is a rolling bearing device 1 for a wheel as shown in Japanese Patent No. This wheel rolling bearing device 1 has a configuration on the driven wheel side, and an outer ring member 2 that is non-rotatably assembled to the vehicle body side.
And an inner ring member 6 rotatably supported on the outer ring member 2 via two rows of balls 3 and 4 about an axis 5.

The inner ring member 6 has a hub wheel 10 having a mounting flange (hub flange) 9 for mounting a brake disc 7 and a tire wheel (wheel) 8 on the vehicle outer side, and a vehicle inner side of the hub wheel 10. The hub wheel 10 to be fitted is composed of a tubular member 11 which is a separate member.

A part of the outer peripheral surface of the hub wheel 10 is used as the inner ring raceway surface of the balls 3 in one row (vehicle outer side), and a part of the outer peripheral surface of the tubular member 11 of the balls 4 in the other row. It is used as the inner ring raceway surface, and a part of the inner peripheral surface of the outer ring member 2 is used as the outer ring raceway surface of the balls 3 and 4 in both rows.

By the way, the mounting flange 9 of the hub wheel 10 is integrally formed on the vehicle outer side. Then, the brake disc 7 and the tire wheel 8 are mounted on the mounting flange 9 in an overlapping manner,
When a nut member (wheel nut) 14 is screwed onto a mounting bolt (hub bolt) 13 press-fitted into the mounting flange 9, the mounting flange 9 is pressed against the brake disc 7 by the tightening force when the nut member 14 is tightened. Elastically deformed so that the brake disc 7 is stably attached to the attachment flange 9. As a result, surface wobbling of the braking surface of the brake disc 7 is suppressed, and it is possible to suppress vibration, abnormal noise, and brake judder during braking.

[0006]

In the above-described conventional rolling bearing device for a wheel 1, the mounting flange 9 is elastically deformed by the tightening force when the nut member 14 is tightened so that the brake disk 7 is pressed against the brake disk 7. It is stably mounted on the mounting flange 9 to suppress surface wobbling of the braking surface of the brake disc 7. However, when the brake pad 16 is pressed against the braking surface and the brake disk 7 is heated and thermally expanded, the brake disk 7 falls down in the direction of the axis 5 with respect to the plane perpendicular to the axis 5.
When the brake pad 16 contacts the braking surface in this state,
Braking performance may be reduced, or abnormal noise or vibration may occur.

Therefore, an object of the present invention is to provide a rolling bearing device which can solve the above problems.

[0008]

In order to solve the above-mentioned problems, a rolling bearing device according to the present invention comprises a fixed ring and a rotary wheel which is rotatably supported by the fixed ring around an axial center through rolling elements. And a mounting flange protruding outward in the radial direction is provided on the outer peripheral surface of the rotating wheel, a brake disc is mounted on the mounting flange, and the brake disc is joined to the mounting flange to extend radially outward. A fixing portion formed with a fixing flange projecting to the inner side, an annular braking plate in which the braking member presses from both sides in the axial direction and is superposed on the fixing flange, and the fixing flange and the braking plate are elastically coupled. And a plurality of first mounting holes formed at predetermined positions in the circumferential direction of the braking plate and positions facing the first mounting holes. The brake plate is inserted into the second mounting holes formed in the fixing flange, respectively, and the braking plate is urged in the radial direction and the circumferential direction in the state of being inserted into the first mounting hole and the second mounting hole, and An insertion portion for positioning in the circumferential direction, and a holding portion which is integrally formed with the insertion portion and urges and clamps the fixing flange and the braking plate in a direction of axially pressing them together. It consists of and.

In the above structure, the brake plate is slidably inserted into and fitted to the fixed portion of the brake disc, the side surface of the brake plate is brought into contact with the fixed flange, and either the brake plate or the fixed portion is attached to the shaft. Rotate about the center to align the first mounting hole and the second mounting hole in the circumferential direction, and then push the tip of the coupling member into the first mounting hole so that the tip attaches to the second mounting hole. Pass through the hole. Then, this tip portion is restored so as to expand its diameter due to its elasticity and is locked to the side surface of the fixed portion, and the insertion portion expands in the circumferential direction and the radial direction to form the first mounting hole and the second mounting hole. By fitting, the brake disc is positioned in the radial direction and the circumferential direction with respect to the fixed portion. As a result, the tip end of the coupling member is locked to the side surface of the fixed flange and the base end portion is pressed against the side surface of the braking plate, so that the braking plate is pinched in the axial direction by the tip end portion and the base end portion, that is, the pinching portion. The braking plate is positioned in the axial direction.

By the way, when the braking member is pressed against both sides of the braking plate in the axial direction during braking, the braking plate is gradually heated. However, since the fixed portion of the brake disc and the braking plate are separate bodies, the braking plate independently thermally expands in the radial direction without affecting the fixed portion, so that the braking plate tilts with respect to the axial center. To be prevented. Therefore, even when the braking plate is heated by the braking member coming into contact with or in pressure contact with the braking surface of the braking plate, generation of abnormal noise or vibration (or brake judder) is prevented.

Further, since the brake plate and the fixed portion are separate members, only the brake plate needs to be replaced at the time of maintenance of the brake disc. In this case, the elastic force of the connecting member is pulled out from the first mounting hole and the second mounting hole, or the elastic force of the connecting member is removed so that the braking plate is removed from the fixing portion. Time and cost can be reduced.

Further, in the rolling bearing device of the present invention, the connecting member integrally forms the insertion portion and the holding portion from a single wire rod.

In this structure, when the braking member is brought into contact with or in pressure contact with the braking surface of the braking plate to heat the braking plate, generation of abnormal noise or vibration (or brake judder) is prevented. Further, since the brake plate and the fixed portion are separate bodies, only the brake plate needs to be replaced when the brake disc is maintained. In this case, the elastic force of the connecting member is pulled out from the first mounting hole and the second mounting hole, or the elastic force of the connecting member is removed so that the braking plate is removed from the fixing portion. Time and cost can be reduced.

Further, in the rolling bearing device of the present invention, each of the plurality of coupling members is connected to each other by an annular body portion.

In this structure, when the braking member is brought into contact with or in pressure contact with the braking surface of the braking plate to heat the braking plate, abnormal noise and vibration (or brake judder) are prevented. Further, since the brake plate and the fixed portion are separate bodies, only the brake plate needs to be replaced when the brake disc is maintained. In this case, by pulling this together with the main body from the first mounting hole and the second mounting hole against the elasticity of the coupling member, or by removing the braking plate from the fixing portion against the elasticity of the coupling member. The maintenance time and cost can be reduced.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION A case where a rolling bearing device according to an embodiment of the present invention is applied to a wheel rolling bearing device will be described below with reference to the drawings. 1 is a sectional view showing the entire structure of a rolling bearing device for a wheel, FIG. 2 is a partially enlarged sectional view of a positioning means, FIG. 3 is an exploded view of a brake disc, FIG. 4 is a front view of the entire coupling member, and FIG. It is a perspective view of the whole coupling member.

As shown in FIG. 1, the wheel rolling bearing device 1 according to the embodiment of the present invention has a structure used on the driven wheel side of the drive wheel side and the driven wheel side. In this wheel rolling bearing device 1, two outer ring members (fixed wheels), which are non-rotatably supported via a knuckle 22 on the vehicle body side, are arranged at equidistant circumferential positions on the crown-shaped cage 20. Inner ring member (rotating ring) through rows of balls (an example of rolling elements) 3 and 4
6 is rotatably supported around the axis 5.

A support flange 21 is formed on the outer peripheral surface of the outer ring member 2 so as to project outward in the radial direction. The support flange 21 is mounted on the knuckle 2 via a mounting bolt 12.
By being fixed to 2, the outer ring member 2 is non-rotatably supported on the vehicle body side.

The inner ring member 6 includes a hub wheel 10 and
The hub wheel 10 is formed separately from a tubular member 11 that is fitted to the vehicle inner side (hereinafter simply referred to as “inner side”) A of the body portion of the hub wheel 10.

In the middle of the outer peripheral surface of the body portion of the hub wheel 10, an inner ring raceway surface of the balls 3 of one row, that is, the row B of the vehicle outer side (hereinafter simply referred to as "outer side") is formed, and the tubular member 11 The inner raceway surface of the balls 4 in the other row is formed on the outer peripheral surface, and the outer raceway surfaces of the balls 3, 4 in both rows are formed on the inner circumferential surface of the outer ring member 2.

The annular bearing space 23 between the outer ring member 2 and the inner ring member 6 is sealed on both sides in the direction of the axis 5 to prevent the lubricant in the annular bearing space 23 from leaking to the outside and from the outside. A sealing device 24 is provided to prevent the entry of muddy water or the like. Each sealing device 24 includes a cored bar fitted to the inner peripheral surface of the outer ring member 2, and an elastic seal body (reference numeral omitted) attached to the cored bar and having a seal lip.

A nut member 15 is screwed on the outer side B end of the hub wheel 10, and the nut member 15 is fastened to the end face of the tubular member 11. As a result, a necessary preload is applied to the balls 3 and 4 in both rows, and the hub wheel 10 and the tubular member 11 are assembled in a rotationally integrated manner about the axis 5.

A mounting flange (also referred to as a hub flange) 9 that projects radially outward is integrally formed in the middle of the outer peripheral surface of the hub wheel 10.
Further, a brake disc (braking member) 16 is attached to the brake disc 7 where the rotation around the shaft center 5 is braked by being pressed into contact with the brake pad 16 from both sides in the shaft center 5 direction. A tire wheel 8 is mounted on the mounting flange 9 via a brake disc 7.

The brake pad 16 is supported by a brake caliper 30 shown by an imaginary line in the drawing. The brake caliper 30 is supported by the knuckle 22 so as to be reciprocally movable along the direction of the axis 5.

The brake disc 7 is a so-called ventilated brake. The brake disc 7 includes a fixed portion (also referred to as a hat portion) 28 joined to the plate surface of the mounting flange 9 and a pair of braking plates 29.
A and 29B.

The braking plates 29A and 29B are connected to each other in the direction of the axis 5 through a fin 61 for heat dissipation.

Hub bolts 13 are press-fitted into respective through holes 9a formed in the mounting flange 9 at a plurality of positions equidistantly arranged in the circumferential direction. Bolt holes 35 through which the hub bolts 13 are inserted, at equidistant positions in the circumferential direction of the fixing portion 28.
Are formed. The fixed portion 28 has a face plate portion 36 having a fitting hole 36a that fits into the end of the hub wheel 10, and a tube formed by bending the face plate portion 36 toward the inner side A at a position radially outside the face plate portion 36. The cylindrical portion 37 and the inner side A of the cylindrical portion 37
Fixed flange 3 bent outward from the end in the radial direction
And 8 are integrally formed.

One of the braking plates 29A has a mounting hole 29a formed in the center thereof, the braking plates 29A and 29B are formed in an annular shape (donut shape), and the braking plate 29A is slidably fitted in the tubular portion 37. And the braking plate 29A is in contact with the fixed flange 38.

The hub bolts 13 are inserted into the bolt holes 35 formed in the face plate portion 36 of the fixing portion 28, and a nut member (not shown) is screwed into a portion where the hub bolts 13 project from the tire wheel 8. It is tightened, whereby the fixing portion 28 of the brake disc 7 is fixed to the mounting flange 9.

The braking plate 29A is fitted on the outer peripheral surface of the cylindrical portion 37 of the fixed portion 28 from the outer side B and is overlapped and fixed to the fixed flange 38, and the brake disc 7 is fixed. Positioning means 40 is provided for fixing the braking plates 29A and 29B to the fixing flange 38 of the portion 28.

The positioning means 40 is provided with the braking plate 29.
A first mounting holes 41 formed at equally distributed positions in the circumferential direction of A (four at equal intervals in the figure), and the fixing flanges arranged at positions facing the first mounting holes 41 in the axial direction 5 Three
Second mounting hole 42 formed on the plate surface of No. 8 and a coupling member 43 fitted into the first mounting hole 41 and the second mounting hole 42.
It consists of and.

The first mounting hole 41 and the second mounting hole 42
1 are each formed in a trapezoidal cross section when viewed from the side, as shown in FIG. Further, as shown in FIG. 2, the first mounting hole 41 and the second mounting hole 42 are formed to have a trapezoidal cross section in a plan view, and are formed so that the diameter gradually decreases from the outer side B to the inner side A. There is. Furthermore, the first mounting hole 41 and the second mounting hole 42 are formed as elongated holes along the circumferential direction, as shown in FIG. Then, the first mounting hole 41
The peripheral wall surface of the second mounting hole 42 is formed as inclined surfaces 50 and 51 whose diameter decreases toward the center of each hole.

As shown in FIGS. 4 and 5, the connecting member 43 is formed by processing a single wire material (general spring steel or stainless spring steel is used). The connecting member 43 has an annular main body 60 and a connecting portion 46. The connecting portions 46 are formed at four positions in the circumferential direction of the body 60, and the connecting member 43 has elasticity as a whole.

Each of these connecting portions 46 is formed by bending so as to stand upright from the main body 60. That is, the coupling portion 46 is inserted through the first mounting hole 41 and the second mounting hole 42 to hold the braking plate 29A in the radial direction and the circumferential direction, the fixing flange 38, and the braking plate 29A.
And a holding portion 45 for holding the braking plate 29A in the axial direction by holding the braking plate 29A in the axial direction.

The radial height of the insertion portion 44 is set to such a height that it can be fitted into the first mounting hole 41 and the second mounting hole 42 when projected on the side cross section shown in FIG. The width of the insertion portion 44 in the circumferential direction is set to a width that can be fitted into the first mounting hole 41 and the second mounting hole 42 as projected on the plan sectional view shown in FIG. A distal end portion 52 that is bent outward in the radial direction when viewed from the side and that is wider than the minimum diameter of the second mounting hole 42 when viewed in plan is formed at the distal end portion of the insertion portion 44. Both of the base end portions 53 of the insertion portion 44 are widened along the circumferential direction and extended toward the base end portions 53 of the adjacent coupling portions 46 to form the main body 60. The sandwiching portion 45
Is composed of a front end portion 52 and a base end portion 53.

Next, a procedure for fixing the braking plate 29A (braking plates 29A, 29B) to the fixing portion 28 of the brake disc 7 will be described. First, the side surface of the braking plate 29A is brought into contact with the fixing flange 38 by inserting the braking plate 29A into the face plate portion 36 of the fixing portion 28 so as to slide through the mounting hole 29a of the braking plate 29A and fitting the braking plate 29A. Then, either the braking plate 29A or the fixed portion 28 is rotated about the axis 5 to align the first mounting hole 41 and the second mounting hole 42 in the circumferential direction.

Subsequently, the main body 60 of the connecting member 43 is fitted into the tubular portion 37 of the fixing portion 28, the connecting portion 46 of the connecting member 43 is aligned with each first mounting hole 41, and these connecting portions are connected. The tips 52 of the portions 46 are pushed into the first mounting holes 41 against the elasticity of the tips 52.

Then, the tip portion 52 and the insertion portion 44 are formed.
Is pressed by the inclined surfaces 50 and 51, which are the peripheral wall surfaces of the first mounting hole 41 and the second mounting hole 42, and deforms so as to reduce the diameter. When the tip portion 52 passes through the second mounting hole 42, the tip portion 52 is restored so as to expand its diameter due to its elasticity and is locked to the side surface of the fixed portion 28, and the insertion portion 44 is circumferentially and radially oriented. The diameter is expanded to the first mounting hole 41 and the second mounting hole 4.
The two inclined surfaces 50 and 51 are fitted. As a result, the brake disc 7 is positioned in the radial direction and the circumferential direction with respect to the fixed portion 28.

Separately from this, the tip portion 52 has the second mounting hole 4
When the diameter is increased by passing through 2, the base end 5
3 is pressed against the side surface of the braking plate 29A, whereby the braking plate 2
9A is sandwiched in the axial center 5 direction by the distal end portion 52 and the proximal end portion 53, that is, the sandwiching portion 45, and the braking plate 29A (braking plates 29A, 29B) is positioned in the axial center 5 direction.

As described above, the braking plate 29A of the brake disc 7 is fitted into the tubular portion 37 of the fixed portion 28 so that the coupling portion 46 of the coupling member 43 is fitted into the first mounting hole 41 and the second mounting hole 42. With a simple work such as fitting, the braking plate 2 is attached to the fixing portion 28 of the brake disc 7.
9A (braking plates 29A, 29B) can be fixed.

Further, the braking plate 29A is securely clamped in the axial direction 5 with a predetermined elastic force by the clamping portion 45 composed of the front end portion 52 and the base end portion 53 of the coupling member 43, so that the braking plate 29A. It is possible to backlash the fixed flange 38.

The brake disc 7 thus assembled is aligned in the circumferential direction so that the hub bolt 13 can be inserted into the bolt hole 35 formed in the fixing portion 28 of the brake disc 7.
Further, the fitting hole 36a of the fixing portion 28 is fitted to the outer side A end of the hub wheel 10, and then the tire wheel 8 is overlapped with the fixing portion 28 of the brake disc 7, and the nut member is attached to the hub bolt 13. The brake disc 7 is fixed to the hub wheel 10 by screwing.

By the way, during braking, the brake pad 16 is pressed against both sides of the braking plates 29A and 29B in the direction of the axis 5 and the braking pad 16 is thus pressed.
When pressed against the braking surfaces of A and 29B, the braking plates 29A and 29B
B is gradually heated. However, since the fixed portion 28 of the brake disc 7 and the braking plates 29A and 29B are separate bodies, the braking plates 29A and 29B independently thermally expand in the radial direction without affecting the fixed portion 28. 29
It is possible to prevent A and 29B from inclining with respect to the axis 5, so that the brake pad 16 can be prevented from moving toward the brake plates 29A and 29B.
The brake plates 29A, 29 are brought into contact with or pressed against the braking surface of B.
Even when B is heated, it is possible to prevent generation of abnormal noise and vibration (or brake judder).

When the brake plates 29A, 29B are heated, it is possible that the brake plates 29A, 29B (particularly the brake plate 29A) expand in the direction of the axis 5 depending on the circumstances. Is slidably fitted to the fixed portion 28, and the braking plate 29A is sandwiched by the distal end portion 52 and the proximal end portion 53 of the coupling member 43, that is, the sandwiching portion 45 in the axial direction 5 with a predetermined elastic force. Therefore, the thermal expansion of the braking plate 29A in the direction of the axis 5 is elastically absorbed by the sandwiching portion 45 and does not act to deform the fixing portion 28.

Further, as described above, the braking plates 29A,
Since 29B and the fixed portion 28 are separate bodies, when the brake disc 7 is maintained, in some cases, the braking plate 2
Only 9A and 29B need to be replaced. In this case, it is pulled out from the first mounting hole 41 and the second mounting hole 42 against the elasticity of the connecting member 43, or the braking plates 29A and 29B are fixed against the fixing portion 28 against the elasticity of the connecting member 43. Be removed from the After the coupling member 43 is removed from the brake disc 7, it can be reused if there is no problem in strength, so that maintenance time and cost can be reduced.

The present invention is not limited to the above embodiment, and many applications and modifications are conceivable within the scope of the present invention as shown in the following (1) to (5).

(1) In the above embodiment, the example in which the brake disc 7 of the present invention is applied to the wheel rolling bearing device 1 on the driven wheel side is shown, but the invention is not limited to this.
That is, although not shown, the brake disc 7 of the present invention
It is of course possible to apply the above to the wheel rolling bearing device 1 on the drive wheel side. Even when the brake disc 7 of the present invention is applied to the wheel rolling bearing device 1 on the drive wheel side,
The same effect as that of the above embodiment can be obtained.

(2) The brake used in the wheel rolling bearing device 1 in the above embodiment was called a ventilated brake, but the present invention is not limited to this, and the ventilated brake is used. -Of course, it can be applied to solid type brakes that are not brakes. In this case, the brake disc 7 has a fixing part 28 joined to the plate surface of the mounting flange 9, a single braking plate, and a connecting member 43. Even if the brake is a solid type brake, the same operational effects as those of the above embodiment can be obtained.

(3) In the above embodiments, the connecting member 43 is used.
Is formed by processing one wire rod so that the coupling portions 46 are arranged at four positions in the circumferential direction of the annular main body 60, but the present invention is not limited to this. .
For example, without providing the main body 60 in which the connecting portions 46 are continuous, the connecting portion 46 is inserted into the first mounting hole 41 and the second mounting hole 42 to hold the braking plate in the radial direction and the circumferential direction. The insertion portions 44, the fixed flange 38, and the braking plate 29A are sandwiched in the direction of the axis 5 and the braking plates 29A, 29
B is composed of a holding portion 45 for holding the position in the direction of the axis 5 and a required number of such connecting portions 46,
That is, only the first mounting hole 41 may be prepared and attached to the plate surface of the fixing flange 38 of the fixing portion 28. Even in this case, the braking plate can be prevented from inclining with respect to the shaft center 5 as in each of the above-described embodiments, so that generation of abnormal noise or vibration (or brake judder) is prevented. In addition, it is possible to reduce the maintenance time and cost without deforming the fixing portion 28.

(4) As the rolling bearing device 1 for a wheel in each of the above-mentioned embodiments, the fixed wheel is the outer ring member 2 incorporated in the vehicle body side, and the rotating wheel is the outer ring member 2 with the balls 5 and 4 around the shaft center 5. The inner ring member 6 is rotatably supported by
It is not limited to this. For example, in a rolling bearing device for a wheel, the fixed wheel is an inner ring member that is non-rotatably supported on the vehicle body side, and the rotating wheel is an outer ring member that is rotatably supported by the inner ring member around the axis through rolling elements. The brake disc 7 of the present invention can be applied.

In short, the brake disc 7 of the present invention can be applied to any wheel rolling bearing device having a structure in which the mounting flange is provided on the rotary wheel.

Also in this case, the braking plate can be prevented from tilting with respect to the shaft center 5 as in the above-described embodiments, so that abnormal noise or vibration (or brake judder) occurs. In addition, it is possible to prevent the fixing portion 28 from being deformed, and it is possible to reduce the maintenance time and the cost.

(5) In each of the above embodiments, the connecting portion 46 or the connecting member 43 is formed of a wire rod, but the present invention is not limited to this, and the main body 60 and the connecting portion 46 are processed from a plate material having elasticity. Also, in this case, the same operational effects as those of the above-described respective embodiments can be obtained.

[0054]

As is apparent from the above description, according to the present invention, when the braking member is pressed against the braking plate from both sides in the axial direction of the braking plate to heat the braking plate, the braking plate is fixed to the fixed portion. The thermal expansion in the radial direction does not affect the brake plate, so the brake plate can be prevented from tilting with respect to the shaft center, and even if the brake plate vibrates, this vibration is elastically absorbed by the coupling member. By doing so, it is possible to prevent generation of abnormal noise and vibration (or brake judder).

[Brief description of drawings]

FIG. 1 is a half sectional view of a rolling bearing device for a vehicle showing an embodiment of the present invention.

FIG. 2 is a partially enlarged sectional view showing a positioning means of the same.

FIG. 3 is likewise an exploded perspective view of a brake disc.

FIG. 4 is also a front view of the coupling member.

FIG. 5 is also a perspective view of the coupling member.

FIG. 6 is a sectional view of a conventional rolling bearing device for a vehicle.

[Explanation of symbols]

1 Rolling bearing device for wheels 2 Outer ring member 5 axis 6 Inner ring member 7 brake disc 9 Mounting flange 16 brake pads 28 Fixed part 29A brake plate 36 Board 37 Cylindrical part 38 Fixed flange 40 Positioning means 41 First mounting hole 42 Second mounting hole 43 Connection member 44 insertion part 45 clamping part 46 Coupling member 50,51 slope 60 body

Claims (3)

[Claims] 1. A fixed wheel and a rotary wheel rotatably supported on the fixed wheel via a rolling element about an axis,
A rolling bearing device in which a mounting flange that projects outward in the radial direction is provided on the outer peripheral surface of the rotating wheel, and a brake disc is mounted on the mounting flange, wherein the brake disc is joined to the mounting flange. A fixed portion formed with a fixed flange protruding in a direction, and an annular braking plate that is pressed against the braking member from both sides in the axial direction and is superposed on the fixed flange.
The fixing flange and a braking plate are elastically coupled to each other, and the coupling member includes a plurality of first mounting holes formed at predetermined positions in the circumferential direction of the braking plate and the first mounting holes. And a second mounting hole formed in the fixing flange at a position facing each other, and urges the braking plate in the radial direction and the circumferential direction in a state of being inserted in the first mounting hole and the second mounting hole. And the insertion portion for positioning in the radial direction and the circumferential direction, and the fixing flange and the braking plate which are integrally formed with the insertion portion and combined with each other, urge them in the axially pressing direction. A rolling bearing device, comprising: 2. The rolling bearing device for a vehicle according to claim 1, wherein the connecting member has the insertion portion and the holding portion integrally formed from a single wire rod. 3. The rolling bearing device according to claim 1, wherein the plurality of coupling members are connected to each other by an annular body portion.