WO2020225992A1 - Vehicle wheel bearing device - Google Patents

Vehicle wheel bearing device Download PDF

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Publication number
WO2020225992A1
WO2020225992A1 PCT/JP2020/012922 JP2020012922W WO2020225992A1 WO 2020225992 A1 WO2020225992 A1 WO 2020225992A1 JP 2020012922 W JP2020012922 W JP 2020012922W WO 2020225992 A1 WO2020225992 A1 WO 2020225992A1
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WO
WIPO (PCT)
Prior art keywords
weir member
weir
bearing device
fitted
wheel bearing
Prior art date
Application number
PCT/JP2020/012922
Other languages
French (fr)
Japanese (ja)
Inventor
啓太郎 森田
浩也 加藤
Original Assignee
Ntn株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ntn株式会社 filed Critical Ntn株式会社
Publication of WO2020225992A1 publication Critical patent/WO2020225992A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/02—Dead axles, i.e. not transmitting torque
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces

Definitions

  • the present invention relates to a wheel bearing device.
  • a wheel bearing device that rotatably supports a wheel in a suspension device such as an automobile.
  • the wheel bearing device is provided with a sealing member between the outer member and the inner member to prevent foreign matter such as muddy water from entering.
  • the outer side seal member of the wheel bearing device is fitted to the outer side end portion of the outer member, and closes the outer side opening end of the annular space formed by the outer member and the inner member.
  • an annular weir member protruding outward in the radial direction is fitted to the outer end of the outer member to remove foreign matter such as muddy water flowing from the outer member toward the outer seal member. By damming it, it is possible to suppress the intrusion of foreign matter such as muddy water into the bearing device (see Patent Document 1).
  • the weir member described in Patent Document 1 is fitted to the outer member before assembling the outer member and the inner member, and cannot be removed after the outer member and the inner member are assembled. It has become.
  • the hub wheel which is an inner member of the wheel bearing device, has a wheel mounting flange protruding outward in the radial direction at the outer end, and a hub bolt is press-fitted into the wheel mounting flange in the axial direction. ..
  • the protruding height of the weir member in the radial direction was necessary to limit the protruding height of the weir member in the radial direction to a height that does not interfere with the hub bolt when the hub bolt is press-fitted or replaced.
  • the larger the protruding height of the weir member the larger the amount of blocking foreign matter such as muddy water. Therefore, if the protruding height of the weir member is limited to a height that does not interfere with the hub bolt, a sufficient amount of blocking can be obtained. It was difficult to obtain.
  • An object of the present invention is to provide a bearing device for wheels.
  • the first invention is an outer member having a double row of outer raceway surfaces on the inner circumference, a hub ring having a wheel mounting flange at one end and a small diameter step portion extending in the axial direction on the outer circumference, and the above-mentioned.
  • An inner member composed of at least one inner ring press-fitted into the small diameter step portion of the hub wheel and having a double-row inner raceway surface facing the outer raceway surface of the double-row, and the outer member and the inner member.
  • a double-row rolling element rotatably accommodated between the two raceway surfaces, and an outer-side sealing member that closes the outer-side opening end of the annular space formed by the outer member and the inner member.
  • a wheel bearing device provided, wherein the outer member is formed in an annular shape with a groove portion formed along the circumferential direction on the outer peripheral surface at the outer end side end portion, and is fitted in the groove portion to the outer side.
  • a wheel bearing device having a dam member projecting radially outward from the outer peripheral surface of the member, and the dam member having at least one cut portion cut in the radial direction.
  • FIG. 6A is a side sectional view showing the weir member according to the third embodiment
  • FIG. 6B is a side sectional view showing the weir member according to the fourth embodiment.
  • the wheel bearing device 1 shown in FIGS. 1 and 2 is an embodiment of the wheel bearing device according to the present invention, and rotatably supports wheels in a suspension device for a vehicle such as an automobile.
  • the wheel bearing device 1 includes an outer ring 2 which is an outer member, a hub ring 3 and an inner ring 4 which are inner members, two rows of inner ball rows 5 and outer side ball rows 6 which are rolling rows.
  • the inner side sealing member 9 and the outer side sealing member 10 are provided.
  • the inner side represents the vehicle body side of the wheel bearing device 1 when attached to the vehicle body
  • the outer side represents the wheel side of the wheel bearing device 1 when attached to the vehicle body
  • the axial direction represents a direction along the rotation axis of the wheel bearing device 1.
  • An inner side opening 2a into which the inner side sealing member 9 can be fitted is formed at the inner side end of the outer ring 2.
  • An outer side opening 2b into which the outer side sealing member 10 can be fitted is formed at the outer side end of the outer ring 2.
  • An outer raceway surface 2c on the inner side and an outer raceway surface 2d on the outer side are formed on the inner peripheral surface of the outer ring 2.
  • a vehicle body mounting flange 2e for attaching the outer ring 2 to a vehicle body side member (knuckle) is integrally formed on the outer peripheral surface 2o of the outer ring 2.
  • the vehicle body mounting flange 2e is provided with a bolt hole 2f through which a fastening member for fastening the vehicle body side member and the outer ring 2 is inserted.
  • the outer ring 2 has a groove portion 2g and a weir member 11. Grooves 2g are formed on the outer peripheral surface 2o at the outer end of the outer ring 2 along the circumferential direction. A weir member 11 formed in an annular shape is fitted in the groove portion 2g. The weir member 11 projects radially outward from the outer peripheral surface 2o over the entire circumference of the outer ring 2 on the outer peripheral surface 2o.
  • a small diameter step portion 3a having a diameter smaller than that of the outer side end portion is formed at the inner side end portion on the outer peripheral surface 3o of the hub ring 3.
  • a wheel mounting flange 3b for mounting a wheel is integrally formed at the outer end of the hub wheel 3.
  • the wheel mounting flange 3b is provided with a bolt hole 3f into which a hub bolt 3g is press-fitted.
  • a plurality of hub bolts 3g are press-fitted into the wheel mounting flange 3b along the circumferential direction.
  • the plurality of hub bolts 3g are arranged on the pitch circle P1 centered on the central axis C1 of the hub wheel 3, and the central axis C2 of the hub bolt 3g is located on the pitch circle P1.
  • the hub wheel 3 is provided so that the inner raceway surface 3c on the outer side faces the outer raceway surface 2d on the outer side of the outer ring 2. Further, in the hub wheel 3, a lip sliding surface 3d to which the outer side sealing member 10 slides is formed on the base side of the wheel mounting flange 3b. An inner ring 4 is provided on the small diameter step portion 3a of the hub ring 3.
  • An inner raceway surface 4a is formed on the outer peripheral surface of the inner ring 4.
  • the inner ring 4 is integrally fixed to the inner end of the hub ring 3 by caulking. That is, on the inner side of the hub ring 3, the inner raceway surface 4a is formed by the inner ring 4, and is arranged so as to face the outer raceway surface 2c on the inner side of the outer ring 2.
  • the inner side ball row 5 and the outer side ball row 6 which are rolling rows are configured by holding a plurality of balls 7 which are rolling bodies by a cage 8.
  • the inner ball row 5 is rotatably sandwiched between the inner raceway surface 4a of the inner ring 4 and the outer raceway surface 2c on the inner side of the outer ring 2.
  • the outer ball row 6 is rotatably sandwiched between the inner raceway surface 3c of the hub ring 3 and the outer raceway surface 2d on the outer side of the outer ring 2.
  • a double row angular contact ball bearing is composed of an outer ring 2, a hub ring 3, an inner ring 4, an inner ball row 5, and an outer ball row 6.
  • the wheel bearing device 1 may be composed of double-row tapered roller bearings.
  • the weir member 11 has an inner peripheral edge portion 11a and an outer peripheral edge portion 11b, and the inner peripheral edge portion 11a is fitted in the groove portion 2g of the outer ring 2.
  • vibration is applied to the outer ring 2 or the outer ring 2 is repeatedly deformed when the wheel bearing device 1 is used. This makes it possible to prevent the weir member 11 from coming out of the outer ring 2.
  • the protrusion height h from the outer peripheral surface 2o in the radial direction of the dam member 11 is such that the outer peripheral edge portion 11b of the dam member 11 has a circle centered on the central axis C1 and passing through the inner diameter side end of the hub bolt 3g as P2.
  • the height is set to be located between the circle P2 and the pitch circle P1 in the radial direction.
  • the weir member 11 has a cutting portion 11c cut in the radial direction at one position in the circumferential direction, and the first cutting surface 11d and the second cutting portion adjacent to each other in the cutting portion 11c.
  • the surfaces 11e can be separated from each other.
  • the outer peripheral surface 2o of the outer ring 2 has an outer diameter D1
  • the inner peripheral edge portion 11a of the weir member 11 has an inner diameter D2.
  • the inner diameter D2 of the inner peripheral edge portion 11a is formed to be smaller than the outer diameter D1 of the outer ring 2.
  • the weir member 11 is made of a member having bendable elasticity, and can be bent so that the inner diameter D2 of at least a part of the inner peripheral edge portion 11a is equal to or larger than the outer diameter D1. ..
  • the weir member 11 configured in this way can be fitted into the groove portion 2g of the outer ring 2 as follows, for example. First, as shown in FIG. 3A, the inner peripheral edge portion 11a in the upper half portion of the weir member 11 is inserted into the groove portion 2g in a state where the lower half portion of the weir member 11 is bent at a substantially right angle to the upper half portion. ..
  • the left side portion of the lower half portion of the weir member 11 having the first cut surface 11d is bent toward the back side of the paper surface in FIG. 3A, and the lower half portion of the weir member 11 having the second cut surface 11e is bent.
  • the right side portion in FIG. 3A can be bent toward the front side of the paper surface in FIG. 3A.
  • the bending angle of the lower half portion of the weir member 11 with respect to the upper half portion is not limited to a substantially right angle, and may be bent to an angle larger or smaller than a substantially right angle.
  • the inner peripheral edge portion 11a in the lower half portion of the weir member 11 is inserted into the groove portion 2g.
  • the weir member 11 is bent so that the inner diameter D2 of the inner peripheral edge portion 11a is equal to or larger than the outer diameter D1, so that the lower half portion of the weir member 11 is smoothly moved along the outer peripheral surface 2o of the outer ring 2. This makes it possible to easily insert the inner peripheral edge portion 11a of the weir member 11 into the groove portion 2g.
  • the weir member 11 When all the inner peripheral edges 11a in the lower half of the weir member 11 are inserted into the groove 2g, the weir member 11 is fitted into the groove 2g of the outer ring 2 as shown in FIG. 3B. In a state where the weir member 11 is fitted in the groove portion 2g, the first cut surface 11d and the second cut surface 11e are in contact with each other.
  • the weir member 11 has the cut portion 11c, and the gap between the first cut surface 11d and the second cut surface 11e in the cut portion 11c can be widened and fitted in the groove portion 2g of the outer ring 2. Therefore, after the outer ring 2 and the hub ring 3 are assembled and the hub bolt 3g is press-fitted into the wheel mounting flange 3b, the weir member 11 can be mounted on the groove portion 2g.
  • the protruding height h of the weir member 11 in the radial direction is not limited by the hub bolt 3.
  • the protruding height h can be set to a large height at which the outer peripheral edge portion 11b of the weir member 11 is located radially outside the circle P2 or the circle P2, and the weir member 11 allows foreign matter such as muddy water. It is possible to obtain a sufficient amount of damming.
  • the weir member 11 is made larger than necessary. Without this, it is possible to obtain a sufficient amount of blocking foreign matter such as muddy water.
  • the weir member 12 As shown in FIG. 4, the weir member 12 according to the second embodiment has an inner peripheral edge portion 12a and an outer peripheral edge portion 12b, and the inner peripheral edge portion 12a is fitted in the groove portion 2g of the outer ring 2. .. By fitting the inner peripheral edge portion 12a into the groove portion 2g and mounting the weir member 12 on the outer ring 2, it is possible to prevent the weir member 12 from coming out of the outer ring 2 as in the case of the weir member 11.
  • the protrusion height h from the outer peripheral surface 2o in the radial direction of the weir member 12 is set to a height at which the outer peripheral edge portion 12b of the weir member 12 is located between the circle P2 and the pitch circle P1 in the radial direction. ..
  • the weir member 12 has a first cutting portion 12c and a second cutting portion 12d cut in the radial direction.
  • the weir member 12 is divided into two first weir member pieces 12A and a second weir member piece 12B by being cut by the first cutting portion 12c and the second cutting portion 12d.
  • the first cutting portion 12c and the second cutting portion 12d are arranged at positions that are point-symmetrical with respect to the center of the weir member 12, and the first weir member piece 12A and the second weir member piece 12B are semicircular rings. It is formed in a shape.
  • the first weir member piece 12A has a first cut surface 12e in the first cut portion 12c and a second cut surface 12 g in the second cut portion 12d.
  • the second weir member piece 12B has a first cut surface 12f in the first cut portion 12c and a second cut surface 12h in the second cut portion 12d.
  • the surface 12h is in contact with the surface 12h in a state where the weir member 12 is attached to the outer ring 2 (see FIG. 4B).
  • the inner peripheral edge portion 12a of the weir member 12 mounted on the outer ring 2 has an inner diameter D3.
  • the inner diameter D3 is formed to be smaller than the outer diameter D1 of the outer ring 2.
  • the weir member 12 configured in this way can be fitted into the groove portion 2g of the outer ring 2 as follows, for example. First, as shown in FIG. 4A, the first weir member piece 12A and the second weir member piece 12B are arranged in a posture in which the inner peripheral edge portion 12a and the outer peripheral surface 2o of the outer ring 2 face each other. Next, the first weir member piece 12A is inserted into the groove 2g of the outer ring 2 from one side in the direction orthogonal to the axial direction, and the second weir member piece 12B is inserted into the groove 2g of the outer ring 2 from the other side in the direction orthogonal to the axial direction. Insert into the groove 2g.
  • first weir member piece 12A and the second weir member piece 12B are the first cut surface 12e and the second cut surface 12 g of the first weir member piece 12A, and the first cut surface of the second weir member piece 12B.
  • first weir member piece 12A and the second weir member piece 12B are fitted into the groove portion 2g, the inner peripheral edge portion 12a of the first weir member piece 12A and the second weir member piece 12B, or the groove portion of the outer ring 2 Adhesive 13 is applied to 2 g.
  • the weir member 12 By fitting the first weir member piece 12A and the second weir member piece 12B to the groove portion 2g in a state where the adhesive 13 is applied to the inner peripheral edge portion 12a or the groove portion 2g, the weir member 12 can be formed as shown in FIG. It is in a state of being fitted in the groove portion 2g via the adhesive 13.
  • the adhesive 13 is an adhesive for adhering the first weir member piece 12A and the second weir member piece 12B to the outer ring 2, and the first weir member piece 12A and the second weir member piece 12B fit into the groove portion 2g. It is adhered to the outer ring 2 in the mounted state.
  • the first weir member piece 12A and the second weir member piece 12B are fixed to the groove portion 2g and are prevented from coming out of the groove portion 2g.
  • the weir member 11 according to the first embodiment is also fitted into the groove portion 2g via the adhesive 13 by, for example, fitting the weir member 11 into the groove portion 2g in the state where the adhesive 13 is applied. Can be in a state.
  • the weir member 12 has the first cut portion 12c and the second cut portion 12d, and is divided into the first weir member piece 12A and the second weir member piece 12B, so that the first weir member 12 It is possible to fit the piece 12A and the second weir member piece 12B into the groove 2g from the opposite side. Therefore, after the outer ring 2 and the hub ring 3 are assembled and the hub bolt 3g is press-fitted into the wheel mounting flange 3b, the weir member 12 can be mounted on the groove portion 2g.
  • the protruding height h of the weir member 12 is set to a height at which the outer peripheral edge portion 12b is located radially outside the circle P2 or the circle P2, after the hub bolt 3g is press-fitted into the wheel mounting flange 3b.
  • the weir member 12 by mounting the weir member 12 in the groove portion 2g after replacing the hub bolt 3g, it is possible to prevent the weir member 12 and the hub bolt 3g from interfering with each other.
  • the protruding height h is set to the outer peripheral edge portion 12b of the weir member 12 as in the case of the weir member 11.
  • the weir member 12 in the present embodiment is divided into two weir member pieces, a first weir member piece 12A and a second weir member piece 12B, but may be divided into three or more weir member pieces. It is possible.
  • the weir member 14 As shown in FIG. 6A, the weir member 14 according to the third embodiment has an inner peripheral portion 14d and an outer peripheral portion 14c, and the inner peripheral edge portion 14a in the inner peripheral portion 14d fits into the groove portion 2g of the outer ring 2. It is dressed up. Further, the outer peripheral portion 14c of the weir member 14 is bent toward the inner side in the axial direction with respect to the inner peripheral portion 14d, and the outer peripheral edge portion 14b of the outer peripheral portion 14c is located on the inner side of the inner peripheral edge portion 14a. ..
  • the bending angle ⁇ 1 of the outer peripheral portion 14c of the weir member 14 with respect to the inner peripheral portion 14d is preferably 90 degrees or less from the viewpoint of enhancing the effect of blocking foreign substances such as muddy water.
  • the weir member 14 is configured to have one cut portion like the weir member 11, or to have a plurality of cut portions like the weir member 12 and to be divided into a plurality of weir member pieces. Can be done.
  • the weir member 15 As shown in FIG. 6B, the weir member 15 according to the fourth embodiment has an inner peripheral portion 15d and an outer peripheral portion 15c, and the inner peripheral edge portion 15a in the inner peripheral portion 15d fits into the groove portion 2g of the outer ring 2. It is dressed up. Further, the outer peripheral portion 15c of the weir member 15 is bent toward the outer side in the axial direction with respect to the inner peripheral portion 15d, and the outer peripheral edge portion 15b of the outer peripheral portion 15c is located on the outer side of the inner peripheral edge portion 15a. .. The outer peripheral portion 15c bent toward the outer side covers the outer peripheral portion of the outer side seal member 10.
  • the outer peripheral portion 15c of the weir member 15 is bent toward the outer side, and the outer peripheral portion 15c covers the outer peripheral portion of the outer side seal member 10, so that the hub wheel 3 side is directed toward the outer side seal member 10 side.
  • Foreign matter such as flowing muddy water can be blocked by the outer peripheral portion 15c. As a result, it is possible to prevent foreign matter such as muddy water from reaching the outer side sealing member 10.
  • the bending angle ⁇ 2 of the outer peripheral portion 15c of the weir member 15 with respect to the inner peripheral portion 15d is preferably 90 degrees or less from the viewpoint of suppressing foreign matter such as muddy water from reaching the outer side sealing member 10.
  • the weir member 15 is configured to have one cut portion like the weir member 11, or to have a plurality of cut portions like the weir member 12 and to be divided into a plurality of weir member pieces. Can be done.
  • the wheel bearing device 1 in the present embodiment is configured as a wheel bearing device 1 having a third generation structure in which an inner raceway surface 3c is directly formed on the outer periphery of the hub wheel 3, but the present invention is limited to this. Instead, it may have a second-generation structure in which a pair of inner rings 4 are press-fitted and fixed to the hub wheels 3.
  • the present invention can be used for wheel bearing devices.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Gasket Seals (AREA)
  • Sealing Of Bearings (AREA)

Abstract

A vehicle wheel bearing device is provided which can dam a sufficient amount of mud or other foreign matter. This vehicle wheel bearing device (1) is provided with: an outer race (2) having an outer raceway (2c, 2d); an inner member which comprises a hub wheel (3) having a small-diameter stepped part (3a) and an inner race (4) press-fitted into the small-diameter stepped part (3a), and which has an inner raceway (3c,4a) opposite of the outer raceway (2c, 2d); a row of balls (5, 6); and an outer-side sealing member (10), wherein the outer race (2) has a groove (2g) which is formed along the circumferential direction in the outer peripheral surface (2o) on the outer-side end of the outer race (2), and a dam member (11) which is formed in a ring shape and which is fitted in the groove (2g) and projects radially outwards from the outer peripheral surface (2o) of the outer race (2), and the dam member (11) has a cut part (11c) which has been radially cut.

Description

車輪用軸受装置Bearing device for wheels
　本発明は車輪用軸受装置に関する。 The present invention relates to a wheel bearing device.
　従来、自動車等の懸架装置において車輪を回転自在に支持する車輪用軸受装置が知られている。車輪用軸受装置には、泥水等の異物の入り込みを防止するシール部材が外方部材と内方部材との間に設けられている。車輪用軸受装置のアウター側シール部材は、外方部材のアウター側端部に嵌合され、外方部材と内方部材とによって形成された環状空間のアウター側開口端を塞いでいる。 Conventionally, a wheel bearing device that rotatably supports a wheel in a suspension device such as an automobile is known. The wheel bearing device is provided with a sealing member between the outer member and the inner member to prevent foreign matter such as muddy water from entering. The outer side seal member of the wheel bearing device is fitted to the outer side end portion of the outer member, and closes the outer side opening end of the annular space formed by the outer member and the inner member.
　さらに車輪用軸受装置においては、外方部材のアウター側端部に径方向外側へ突出する環状の堰部材を嵌合して、外方部材からアウター側シール部材に向かって流れる泥水等の異物を堰き止めることにより、泥水等の異物の軸受装置内部への浸入を抑制することが行われている（特許文献１参照）。 Further, in the wheel bearing device, an annular weir member protruding outward in the radial direction is fitted to the outer end of the outer member to remove foreign matter such as muddy water flowing from the outer member toward the outer seal member. By damming it, it is possible to suppress the intrusion of foreign matter such as muddy water into the bearing device (see Patent Document 1).
　特許文献１に記載の堰部材は、外方部材と内方部材を組み立てる前に外方部材に嵌合されるものであり、外方部材と内方部材を組み立てた後には取り外すことができない構成となっている。また、車輪用軸受装置における内方部材であるハブ輪は、アウター側端部に径方向外側へ突出する車輪取り付けフランジを有しており、車輪取り付けフランジにはハブボルトが軸方向に圧入されている。 The weir member described in Patent Document 1 is fitted to the outer member before assembling the outer member and the inner member, and cannot be removed after the outer member and the inner member are assembled. It has become. Further, the hub wheel, which is an inner member of the wheel bearing device, has a wheel mounting flange protruding outward in the radial direction at the outer end, and a hub bolt is press-fitted into the wheel mounting flange in the axial direction. ..
　従って、堰部材の径方向における突出高さは、ハブボルトを圧入または交換する際にハブボルトと干渉しない程度の高さに制限する必要があった。堰部材の突出高さは大きい方が泥水等の異物の堰き止め量が多くなるため、堰部材の突出高さがハブボルトと干渉しない程度の高さに制限されると、十分な堰き止め量を得ることが困難であった。 Therefore, it was necessary to limit the protruding height of the weir member in the radial direction to a height that does not interfere with the hub bolt when the hub bolt is press-fitted or replaced. The larger the protruding height of the weir member, the larger the amount of blocking foreign matter such as muddy water. Therefore, if the protruding height of the weir member is limited to a height that does not interfere with the hub bolt, a sufficient amount of blocking can be obtained. It was difficult to obtain.
特開２００８－２２３８９３号公報Japanese Unexamined Patent Publication No. 2008-223893
　本発明は以上の如き状況に鑑みてなされたものであり、堰部材の径方向における突出高さがハブボルトにより制限されることがなく、泥水等の異物の堰き止め量を十分に得ることができる車輪用軸受装置の提供を目的とする。 The present invention has been made in view of the above circumstances, and the protruding height of the weir member in the radial direction is not limited by the hub bearing, and a sufficient amount of blocking foreign matter such as muddy water can be obtained. An object of the present invention is to provide a bearing device for wheels.
　即ち、第一の発明は、内周に複列の外側軌道面を有する外方部材と、一端部に車輪取り付けフランジを有し、外周に軸方向に延びる小径段部を有するハブ輪、および前記ハブ輪の小径段部に圧入された少なくとも一つの内輪からなり、前記複列の外側軌道面に対向する複列の内側軌道面を有する内方部材と、前記外方部材と前記内方部材との両軌道面間に転動自在に収容された複列の転動体と、前記外方部材と前記内方部材とによって形成された環状空間のアウター側開口端を塞ぐアウター側シール部材と、を備える車輪用軸受装置であって、前記外方部材は、アウター側端部における外周面に周方向に沿って形成される溝部と、円環状に形成され、前記溝部に嵌装されて前記外方部材の外周面よりも径方向外側に突出する堰部材とを有し、前記堰部材は、径方向に切断された少なくとも一つの切断部を有することを特徴とする車輪用軸受装置である。 That is, the first invention is an outer member having a double row of outer raceway surfaces on the inner circumference, a hub ring having a wheel mounting flange at one end and a small diameter step portion extending in the axial direction on the outer circumference, and the above-mentioned. An inner member composed of at least one inner ring press-fitted into the small diameter step portion of the hub wheel and having a double-row inner raceway surface facing the outer raceway surface of the double-row, and the outer member and the inner member. A double-row rolling element rotatably accommodated between the two raceway surfaces, and an outer-side sealing member that closes the outer-side opening end of the annular space formed by the outer member and the inner member. A wheel bearing device provided, wherein the outer member is formed in an annular shape with a groove portion formed along the circumferential direction on the outer peripheral surface at the outer end side end portion, and is fitted in the groove portion to the outer side. A wheel bearing device having a dam member projecting radially outward from the outer peripheral surface of the member, and the dam member having at least one cut portion cut in the radial direction.
　本発明によれば、泥水等の異物の堰き止め量を十分に得ることができる。 According to the present invention, a sufficient amount of blocking foreign matter such as muddy water can be obtained.
車輪用軸受装置を示す側面断面図である。It is a side sectional view which shows the bearing device for a wheel. 車輪用軸受装置を示す正面図である。It is a front view which shows the bearing device for a wheel. 図３Ａおよび図３Ｂは、外輪および第１実施形態に係る堰部材を示す正面断面図である。3A and 3B are front sectional views showing an outer ring and a weir member according to the first embodiment. 図４Ａおよび図４Ｂは、外輪および第２実施形態に係る堰部材を示す正面断面図である。4A and 4B are front sectional views showing an outer ring and a weir member according to the second embodiment. 堰部材が接着剤を介して外輪の溝部に嵌装された状態を示す側面断面図である。It is a side sectional view which shows the state which the weir member is fitted in the groove part of the outer ring through an adhesive. 図６Ａは第３実施形態に係る堰部材を示す側面断面図であり、図６Ｂは第４実施形態に係る堰部材を示す側面断面図である。FIG. 6A is a side sectional view showing the weir member according to the third embodiment, and FIG. 6B is a side sectional view showing the weir member according to the fourth embodiment.
　以下に、本発明を実施するための形態を、添付の図面を用いて説明する。 Hereinafter, a mode for carrying out the present invention will be described with reference to the attached drawings.
[車輪用軸受装置]
　図１、図２に示す車輪用軸受装置１は、本発明に係る車輪用軸受装置の一実施形態であり、自動車等の車両の懸架装置において車輪を回転自在に支持するものである。車輪用軸受装置１は、外方部材である外輪２と、内方部材であるハブ輪３および内輪４と、転動列である二列のインナー側ボール列５およびアウター側ボール列６と、インナー側シール部材９と、アウター側シール部材１０とを具備する。 [Wheel bearing device]
The wheel bearing device 1 shown in FIGS. 1 and 2 is an embodiment of the wheel bearing device according to the present invention, and rotatably supports wheels in a suspension device for a vehicle such as an automobile. The wheel bearing device 1 includes an outer ring 2 which is an outer member, a hub ring 3 and an inner ring 4 which are inner members, two rows of inner ball rows 5 and outer side ball rows 6 which are rolling rows. The inner side sealing member 9 and the outer side sealing member 10 are provided.
　ここで、インナー側とは、車体に取り付けた際の車輪用軸受装置１の車体側を表し、アウター側とは、車体に取り付けた際の車輪用軸受装置１の車輪側を表す。また、軸方向とは、車輪用軸受装置１の回転軸に沿った方向を表す。 Here, the inner side represents the vehicle body side of the wheel bearing device 1 when attached to the vehicle body, and the outer side represents the wheel side of the wheel bearing device 1 when attached to the vehicle body. Further, the axial direction represents a direction along the rotation axis of the wheel bearing device 1.
　外輪２のインナー側端部には、インナー側シール部材９が嵌合可能なインナー側開口部２ａが形成されている。外輪２のアウター側端部には、アウター側シール部材１０が嵌合可能なアウター側開口部２ｂが形成されている。外輪２の内周面には、インナー側の外側軌道面２ｃと、アウター側の外側軌道面２ｄとが形成されている。 An inner side opening 2a into which the inner side sealing member 9 can be fitted is formed at the inner side end of the outer ring 2. An outer side opening 2b into which the outer side sealing member 10 can be fitted is formed at the outer side end of the outer ring 2. An outer raceway surface 2c on the inner side and an outer raceway surface 2d on the outer side are formed on the inner peripheral surface of the outer ring 2.
　外輪２の外周面２ｏには、外輪２を車体側部材（ナックル）に取り付けるための車体取り付けフランジ２ｅが一体的に形成されている。車体取り付けフランジ２ｅには、車体側の部材と外輪２とを締結する締結部材が挿通されるボルト孔２ｆが設けられている。 A vehicle body mounting flange 2e for attaching the outer ring 2 to a vehicle body side member (knuckle) is integrally formed on the outer peripheral surface 2o of the outer ring 2. The vehicle body mounting flange 2e is provided with a bolt hole 2f through which a fastening member for fastening the vehicle body side member and the outer ring 2 is inserted.
　外輪２は、溝部２ｇと堰部材１１とを有している。外輪２のアウター側端部における外周面２ｏには、溝部２ｇが周方向に沿って、全周に形成されている。溝部２ｇには、円環状に形成される堰部材１１が嵌装されている。堰部材１１は、外輪２の外周面２ｏにおける全周にわたって、外周面２ｏよりも径方向外側に突出している。 The outer ring 2 has a groove portion 2g and a weir member 11. Grooves 2g are formed on the outer peripheral surface 2o at the outer end of the outer ring 2 along the circumferential direction. A weir member 11 formed in an annular shape is fitted in the groove portion 2g. The weir member 11 projects radially outward from the outer peripheral surface 2o over the entire circumference of the outer ring 2 on the outer peripheral surface 2o.
　外輪２に堰部材１１を設けることによって、外輪２の外周面２ｏからアウター側シール部材１０に向かって流れる泥水等の異物を堰き止めて下方に流下させ、泥水等の異物が車輪用軸受装置１の内部に浸入することを抑制している。 By providing the weir member 11 on the outer ring 2, foreign matter such as muddy water flowing from the outer peripheral surface 2o of the outer ring 2 toward the outer side seal member 10 is blocked and allowed to flow downward, and the foreign matter such as muddy water flows down to the wheel bearing device 1. It suppresses the invasion into the inside of the.
　ハブ輪３の外周面３ｏにおけるインナー側端部には、アウター側端部よりも縮径された小径段部３ａが形成されている。ハブ輪３のアウター側端部には、車輪を取り付けるための車輪取り付けフランジ３ｂが一体的に形成されている。車輪取り付けフランジ３ｂには、ハブボルト３ｇが圧入されるボルト孔３ｆが設けられている。 A small diameter step portion 3a having a diameter smaller than that of the outer side end portion is formed at the inner side end portion on the outer peripheral surface 3o of the hub ring 3. A wheel mounting flange 3b for mounting a wheel is integrally formed at the outer end of the hub wheel 3. The wheel mounting flange 3b is provided with a bolt hole 3f into which a hub bolt 3g is press-fitted.
　車輪取り付けフランジ３ｂには、複数のハブボルト３ｇが周方向に沿って圧入されている。複数のハブボルト３ｇは、ハブ輪３の中心軸Ｃ１を中心とするピッチ円Ｐ１上に配置されており、ハブボルト３ｇの中心軸Ｃ２はピッチ円Ｐ１上に位置している。 A plurality of hub bolts 3g are press-fitted into the wheel mounting flange 3b along the circumferential direction. The plurality of hub bolts 3g are arranged on the pitch circle P1 centered on the central axis C1 of the hub wheel 3, and the central axis C2 of the hub bolt 3g is located on the pitch circle P1.
　ハブ輪３には、アウター側の内側軌道面３ｃが外輪２のアウター側の外側軌道面２ｄに対向するように設けられている。また、ハブ輪３においては、車輪取り付けフランジ３ｂの基部側にアウター側シール部材１０が摺接するリップ摺動面３ｄが形成されている。ハブ輪３の小径段部３ａには、内輪４が設けられている。 The hub wheel 3 is provided so that the inner raceway surface 3c on the outer side faces the outer raceway surface 2d on the outer side of the outer ring 2. Further, in the hub wheel 3, a lip sliding surface 3d to which the outer side sealing member 10 slides is formed on the base side of the wheel mounting flange 3b. An inner ring 4 is provided on the small diameter step portion 3a of the hub ring 3.
　内輪４の外周面には、内側軌道面４ａが形成されている。内輪４は、ハブ輪３のインナー側端部にかしめ加工をすることにより一体的に固定されている。つまり、ハブ輪３のインナー側には、内輪４によって内側軌道面４ａが構成され、外輪２のインナー側の外側軌道面２ｃに対向するように配置されている。 An inner raceway surface 4a is formed on the outer peripheral surface of the inner ring 4. The inner ring 4 is integrally fixed to the inner end of the hub ring 3 by caulking. That is, on the inner side of the hub ring 3, the inner raceway surface 4a is formed by the inner ring 4, and is arranged so as to face the outer raceway surface 2c on the inner side of the outer ring 2.
　転動列であるインナー側ボール列５とアウター側ボール列６とは、転動体である複数のボール７が保持器８によって保持されることにより構成されている。インナー側ボール列５は、内輪４の内側軌道面４ａと、外輪２のインナー側の外側軌道面２ｃとの間に転動自在に挟まれている。アウター側ボール列６は、ハブ輪３の内側軌道面３ｃと、外輪２のアウター側の外側軌道面２ｄとの間に転動自在に挟まれている。 The inner side ball row 5 and the outer side ball row 6 which are rolling rows are configured by holding a plurality of balls 7 which are rolling bodies by a cage 8. The inner ball row 5 is rotatably sandwiched between the inner raceway surface 4a of the inner ring 4 and the outer raceway surface 2c on the inner side of the outer ring 2. The outer ball row 6 is rotatably sandwiched between the inner raceway surface 3c of the hub ring 3 and the outer raceway surface 2d on the outer side of the outer ring 2.
　車輪用軸受装置１においては、外輪２と、ハブ輪３および内輪４と、インナー側ボール列５と、アウター側ボール列６とによって複列アンギュラ玉軸受が構成されている。なお、車輪用軸受装置１は、複列円錐ころ軸受によって構成されていてもよい。 In the wheel bearing device 1, a double row angular contact ball bearing is composed of an outer ring 2, a hub ring 3, an inner ring 4, an inner ball row 5, and an outer ball row 6. The wheel bearing device 1 may be composed of double-row tapered roller bearings.
[堰部材の第１実施形態]
　図１、図２に示すように、堰部材１１は、内周縁部１１ａと外周縁部１１ｂとを有しており、内周縁部１１ａが外輪２の溝部２ｇに嵌装されている。内周縁部１１ａを溝部２ｇに嵌装して堰部材１１を外輪２に装着することで、車輪用軸受装置１の使用時等に外輪２に振動が加わる、または外輪２に繰り返し変形が生じることにより堰部材１１が外輪２から抜け出すことを抑制可能となっている。 [First Embodiment of Weir Member]
As shown in FIGS. 1 and 2, the weir member 11 has an inner peripheral edge portion 11a and an outer peripheral edge portion 11b, and the inner peripheral edge portion 11a is fitted in the groove portion 2g of the outer ring 2. By fitting the inner peripheral edge portion 11a into the groove portion 2g and mounting the weir member 11 on the outer ring 2, vibration is applied to the outer ring 2 or the outer ring 2 is repeatedly deformed when the wheel bearing device 1 is used. This makes it possible to prevent the weir member 11 from coming out of the outer ring 2.
　堰部材１１の径方向における外周面２ｏからの突出高さｈは、中心軸Ｃ１を中心としハブボルト３ｇの内径側端部を通る円をＰ２とした場合、堰部材１１の外周縁部１１ｂが、径方向において円Ｐ２とピッチ円Ｐ１との間に位置する高さに設定されている。 The protrusion height h from the outer peripheral surface 2o in the radial direction of the dam member 11 is such that the outer peripheral edge portion 11b of the dam member 11 has a circle centered on the central axis C1 and passing through the inner diameter side end of the hub bolt 3g as P2. The height is set to be located between the circle P2 and the pitch circle P1 in the radial direction.
　図３に示すように、堰部材１１は、周方向における１箇所に、径方向に切断された切断部１１ｃを有しており、切断部１１ｃにおいて隣接する第１切断面１１ｄと、第２切断面１１ｅとは、互いに離間することが可能である。 As shown in FIG. 3, the weir member 11 has a cutting portion 11c cut in the radial direction at one position in the circumferential direction, and the first cutting surface 11d and the second cutting portion adjacent to each other in the cutting portion 11c. The surfaces 11e can be separated from each other.
　図３Ｂに示すように、外輪２の外周面２ｏは外径Ｄ１を有しており、堰部材１１の内周縁部１１ａは内径Ｄ２を有している。堰部材１１の第１切断面１１ｄと第２切断面１１ｅとが当接した状態においては、内周縁部１１ａの内径Ｄ２は外輪２の外径Ｄ１よりも小さく形成されている。 As shown in FIG. 3B, the outer peripheral surface 2o of the outer ring 2 has an outer diameter D1, and the inner peripheral edge portion 11a of the weir member 11 has an inner diameter D2. When the first cut surface 11d of the weir member 11 and the second cut surface 11e are in contact with each other, the inner diameter D2 of the inner peripheral edge portion 11a is formed to be smaller than the outer diameter D1 of the outer ring 2.
　堰部材１１は、屈曲可能な弾性を有する部材にて構成されており、内周縁部１１ａの少なくとも一部における内径Ｄ２が、外径Ｄ１以上となるように屈曲することが可能に構成されている。 The weir member 11 is made of a member having bendable elasticity, and can be bent so that the inner diameter D2 of at least a part of the inner peripheral edge portion 11a is equal to or larger than the outer diameter D1. ..
　このように構成される堰部材１１は、例えば次のようにして外輪２の溝部２ｇに嵌装することができる。まず、図３Ａに示すように、堰部材１１の下半部を上半部に対して略直角に屈曲させた状態で、堰部材１１の上半部における内周縁部１１ａを溝部２ｇに差し入れる。 The weir member 11 configured in this way can be fitted into the groove portion 2g of the outer ring 2 as follows, for example. First, as shown in FIG. 3A, the inner peripheral edge portion 11a in the upper half portion of the weir member 11 is inserted into the groove portion 2g in a state where the lower half portion of the weir member 11 is bent at a substantially right angle to the upper half portion. ..
　この場合、例えば第１切断面１１ｄを有する堰部材１１の下半部における左側の部分は、図３Ａにおける紙面奥側へ向けて屈曲させ、第２切断面１１ｅを有する堰部材１１の下半部における右側の部分は、図３Ａにおける紙面手前側に向けて屈曲させることができる。 In this case, for example, the left side portion of the lower half portion of the weir member 11 having the first cut surface 11d is bent toward the back side of the paper surface in FIG. 3A, and the lower half portion of the weir member 11 having the second cut surface 11e is bent. The right side portion in FIG. 3A can be bent toward the front side of the paper surface in FIG. 3A.
　但し、堰部材１１の下半部における左側の部分と右側の部分とを、共に図３Ａにおける紙面奥側または紙面手前側に屈曲させることも可能である。また、堰部材１１における下半部の上半部に対する屈曲角度は、略直角に限定するものではなく、略直角よりも大きい角度または小さい角度に屈曲させてもよい。 However, it is also possible to bend both the left side portion and the right side portion of the lower half portion of the weir member 11 toward the back side of the paper surface or the front side of the paper surface in FIG. 3A. Further, the bending angle of the lower half portion of the weir member 11 with respect to the upper half portion is not limited to a substantially right angle, and may be bent to an angle larger or smaller than a substantially right angle.
　次に、堰部材１１の下半部における左側の部分および右側の部分を下方へ移動させながら、堰部材１１の下半部における内周縁部１１ａを溝部２ｇに差し入れていく。この場合、堰部材１１を、内周縁部１１ａの内径Ｄ２が外径Ｄ１以上となるように屈曲させることで、堰部材１１の下半部を外輪２の外周面２ｏに沿って円滑に移動させることができ、堰部材１１の内周縁部１１ａを溝部２ｇに容易に差し入れることが可能となる。 Next, while moving the left side portion and the right side portion in the lower half portion of the weir member 11 downward, the inner peripheral edge portion 11a in the lower half portion of the weir member 11 is inserted into the groove portion 2g. In this case, the weir member 11 is bent so that the inner diameter D2 of the inner peripheral edge portion 11a is equal to or larger than the outer diameter D1, so that the lower half portion of the weir member 11 is smoothly moved along the outer peripheral surface 2o of the outer ring 2. This makes it possible to easily insert the inner peripheral edge portion 11a of the weir member 11 into the groove portion 2g.
　堰部材１１の下半部における内周縁部１１ａが全て溝部２ｇに差し入れられると、図３Ｂに示すように、堰部材１１が外輪２の溝部２ｇに嵌装された状態となる。堰部材１１が溝部２ｇに嵌装された状態では、第１切断面１１ｄと第２切断面１１ｅとは当接している。 When all the inner peripheral edges 11a in the lower half of the weir member 11 are inserted into the groove 2g, the weir member 11 is fitted into the groove 2g of the outer ring 2 as shown in FIG. 3B. In a state where the weir member 11 is fitted in the groove portion 2g, the first cut surface 11d and the second cut surface 11e are in contact with each other.
　このように、堰部材１１は切断部１１ｃを有しており、切断部１１ｃにおける第１切断面１１ｄと第２切断面１１ｅとの間を広げて外輪２の溝部２ｇに嵌装することができるため、外輪２とハブ輪３とを組み立てて車輪取り付けフランジ３ｂにハブボルト３ｇを圧入した後に、堰部材１１を溝部２ｇに装着することができる。 As described above, the weir member 11 has the cut portion 11c, and the gap between the first cut surface 11d and the second cut surface 11e in the cut portion 11c can be widened and fitted in the groove portion 2g of the outer ring 2. Therefore, after the outer ring 2 and the hub ring 3 are assembled and the hub bolt 3g is press-fitted into the wheel mounting flange 3b, the weir member 11 can be mounted on the groove portion 2g.
　これにより、堰部材１１の突出高さｈを、外周縁部１１ｂが円Ｐ２または円Ｐ２よりも径方向外側に位置する高さに設定したとしても、車輪取り付けフランジ３ｂにハブボルト３ｇを圧入した後に、堰部材１１を溝部２ｇに装着することで、堰部材１１とハブボルト３ｇとが干渉することを防止できる。 As a result, even if the protruding height h of the weir member 11 is set to a height at which the outer peripheral edge portion 11b is located radially outside the circle P2 or the circle P2, after the hub bolt 3g is press-fitted into the wheel mounting flange 3b. By mounting the weir member 11 in the groove portion 2g, it is possible to prevent the weir member 11 and the hub bolt 3g from interfering with each other.
　また、堰部材１１を溝部２ｇに嵌装する際の手順と逆の手順を踏むことで、溝部２ｇに嵌装した堰部材１１を外輪２から取り外すことも可能である。従って、車輪取り付けフランジ３ｂに圧入されたハブボルト３ｇを交換する際には、溝部２ｇに嵌装した堰部材１１を一旦外輪２から取り外し、ハブボルト３ｇの交換後に堰部材１１を再び溝部２ｇに嵌装することで、堰部材１１とハブボルト３ｇとが干渉することを防止できる。 It is also possible to remove the weir member 11 fitted in the groove 2g from the outer ring 2 by following the procedure opposite to the procedure for fitting the weir member 11 in the groove 2g. Therefore, when replacing the hub bolt 3g press-fitted into the wheel mounting flange 3b, the weir member 11 fitted in the groove 2g is once removed from the outer ring 2, and after the hub bolt 3g is replaced, the weir member 11 is fitted in the groove 2g again. By doing so, it is possible to prevent the weir member 11 and the hub bolt 3g from interfering with each other.
　このように、堰部材１１は、ハブボルト３の圧入後および交換後に外輪に装着することが可能であるため、堰部材１１の径方向における突出高さｈがハブボルト３により制限されることがない。これにより、突出高さｈを、堰部材１１の外周縁部１１ｂが円Ｐ２または円Ｐ２よりも径方向外側に位置する大きな高さに設定することができ、堰部材１１によって泥水等の異物の堰き止め量を十分に得ることが可能となる。 As described above, since the weir member 11 can be attached to the outer ring after the hub bolt 3 is press-fitted and replaced, the protruding height h of the weir member 11 in the radial direction is not limited by the hub bolt 3. As a result, the protruding height h can be set to a large height at which the outer peripheral edge portion 11b of the weir member 11 is located radially outside the circle P2 or the circle P2, and the weir member 11 allows foreign matter such as muddy water. It is possible to obtain a sufficient amount of damming.
　また、堰部材１１の突出高さｈを、堰部材１１の外周縁部１１ｂが円Ｐ２とピッチ円Ｐ１との間に位置する高さに設定することで、堰部材１１を必要以上に大きくすることなく、泥水等の異物の堰き止め量を十分に得ることが可能となる。 Further, by setting the protruding height h of the weir member 11 to a height at which the outer peripheral edge portion 11b of the weir member 11 is located between the circle P2 and the pitch circle P1, the weir member 11 is made larger than necessary. Without this, it is possible to obtain a sufficient amount of blocking foreign matter such as muddy water.
[堰部材の第２実施形態]
　図４に示すように、第２実施形態に係る堰部材１２は、内周縁部１２ａと外周縁部１２ｂとを有しており、内周縁部１２ａが外輪２の溝部２ｇに嵌装されている。内周縁部１２ａを溝部２ｇに嵌装して堰部材１２を外輪２に装着することで、堰部材１１の場合と同様に、堰部材１２が外輪２から抜け出すことを抑制可能となっている。 [Second Embodiment of Weir Member]
As shown in FIG. 4, the weir member 12 according to the second embodiment has an inner peripheral edge portion 12a and an outer peripheral edge portion 12b, and the inner peripheral edge portion 12a is fitted in the groove portion 2g of the outer ring 2. .. By fitting the inner peripheral edge portion 12a into the groove portion 2g and mounting the weir member 12 on the outer ring 2, it is possible to prevent the weir member 12 from coming out of the outer ring 2 as in the case of the weir member 11.
　堰部材１２の径方向における外周面２ｏからの突出高さｈは、堰部材１２の外周縁部１２ｂが、径方向において円Ｐ２とピッチ円Ｐ１との間に位置する高さに設定されている。 The protrusion height h from the outer peripheral surface 2o in the radial direction of the weir member 12 is set to a height at which the outer peripheral edge portion 12b of the weir member 12 is located between the circle P2 and the pitch circle P1 in the radial direction. ..
　堰部材１２は、径方向に切断された第１切断部１２ｃと第２切断部１２ｄとを有している。堰部材１２は、第１切断部１２ｃと第２切断部１２ｄとで切断されることにより、２つの第１堰部材片１２Ａと第２堰部材片１２Ｂとに分割されている。第１切断部１２ｃと第２切断部１２ｄとは、堰部材１２の中心に対して点対象となる位置に配置されており、第１堰部材片１２Ａおよび第２堰部材片１２Ｂは半円環形状に形成されている。 The weir member 12 has a first cutting portion 12c and a second cutting portion 12d cut in the radial direction. The weir member 12 is divided into two first weir member pieces 12A and a second weir member piece 12B by being cut by the first cutting portion 12c and the second cutting portion 12d. The first cutting portion 12c and the second cutting portion 12d are arranged at positions that are point-symmetrical with respect to the center of the weir member 12, and the first weir member piece 12A and the second weir member piece 12B are semicircular rings. It is formed in a shape.
　第１堰部材片１２Ａは第１切断部１２ｃにおいて第１切断面１２ｅを有し、第２切断部１２ｄにおいて第２切断面１２ｇを有している。第２堰部材片１２Ｂは第１切断部１２ｃにおいて第１切断面１２ｆを有し、第２切断部１２ｄにおいて第２切断面１２ｈを有している。 The first weir member piece 12A has a first cut surface 12e in the first cut portion 12c and a second cut surface 12 g in the second cut portion 12d. The second weir member piece 12B has a first cut surface 12f in the first cut portion 12c and a second cut surface 12h in the second cut portion 12d.
　第１堰部材片１２Ａの第１切断面１２ｅと第２堰部材片１２Ｂの第１切断面１２ｆ、および第１堰部材片１２Ａの第２切断面１２ｇと第２堰部材片１２Ｂの第２切断面１２ｈとは、堰部材１２が外輪２に装着された状態において当接している(図４Ｂ参照)。外輪２に装着された堰部材１２の内周縁部１２ａは内径Ｄ３を有している。内径Ｄ３は外輪２の外径Ｄ１よりも小さく形成されている。 The first cut surface 12e of the first weir member piece 12A and the first cut surface 12f of the second weir member piece 12B, and the second cut surface 12 g of the first weir member piece 12A and the second cut surface 12B of the second weir member piece 12B. The surface 12h is in contact with the surface 12h in a state where the weir member 12 is attached to the outer ring 2 (see FIG. 4B). The inner peripheral edge portion 12a of the weir member 12 mounted on the outer ring 2 has an inner diameter D3. The inner diameter D3 is formed to be smaller than the outer diameter D1 of the outer ring 2.
　このように構成される堰部材１２は、例えば次のようにして外輪２の溝部２ｇに嵌装することができる。まず、図４Ａに示すように、第１堰部材片１２Ａおよび第２堰部材片１２Ｂを、内周縁部１２ａと外輪２の外周面２ｏとが対向する姿勢に配置する。次に、第１堰部材片１２Ａを軸方向と直交する方向の一側から外輪２の溝部２ｇに差し入れるとともに、第２堰部材片１２Ｂを軸方向と直交する方向の他側から外輪２の溝部２ｇに差し入れる。 The weir member 12 configured in this way can be fitted into the groove portion 2g of the outer ring 2 as follows, for example. First, as shown in FIG. 4A, the first weir member piece 12A and the second weir member piece 12B are arranged in a posture in which the inner peripheral edge portion 12a and the outer peripheral surface 2o of the outer ring 2 face each other. Next, the first weir member piece 12A is inserted into the groove 2g of the outer ring 2 from one side in the direction orthogonal to the axial direction, and the second weir member piece 12B is inserted into the groove 2g of the outer ring 2 from the other side in the direction orthogonal to the axial direction. Insert into the groove 2g.
　この場合、第１堰部材片１２Ａと第２堰部材片１２Ｂとを、第１堰部材片１２Ａの第１切断面１２ｅおよび第２切断面１２ｇと、第２堰部材片１２Ｂの第１切断面１２ｆおよび第２切断面１２ｈとが、それぞれ当接する位置まで溝部２ｇに差し入れることで、図４Ｂに示すように堰部材１２が外輪２に嵌装された状態となる。 In this case, the first weir member piece 12A and the second weir member piece 12B are the first cut surface 12e and the second cut surface 12 g of the first weir member piece 12A, and the first cut surface of the second weir member piece 12B. By inserting the weir member 12 into the groove 2g to a position where the 12f and the second cut surface 12h come into contact with each other, the weir member 12 is fitted to the outer ring 2 as shown in FIG. 4B.
　また、第１堰部材片１２Ａおよび第２堰部材片１２Ｂを溝部２ｇに嵌装する際には、第１堰部材片１２Ａおよび第２堰部材片１２Ｂの内周縁部１２ａ、または外輪２の溝部２ｇに接着剤１３を塗布しておく。 Further, when the first weir member piece 12A and the second weir member piece 12B are fitted into the groove portion 2g, the inner peripheral edge portion 12a of the first weir member piece 12A and the second weir member piece 12B, or the groove portion of the outer ring 2 Adhesive 13 is applied to 2 g.
　内周縁部１２ａまたは溝部２ｇに接着剤１３を塗布した状態で第１堰部材片１２Ａおよび第２堰部材片１２Ｂを溝部２ｇに嵌装することで、図５に示すように、堰部材１２は接着剤１３を介して溝部２ｇに嵌装された状態となる。接着剤１３は、第１堰部材片１２Ａおよび第２堰部材片１２Ｂと外輪２とを接着するための接着剤であり、第１堰部材片１２Ａおよび第２堰部材片１２Ｂは溝部２ｇに嵌装された状態で外輪２と接着される。 By fitting the first weir member piece 12A and the second weir member piece 12B to the groove portion 2g in a state where the adhesive 13 is applied to the inner peripheral edge portion 12a or the groove portion 2g, the weir member 12 can be formed as shown in FIG. It is in a state of being fitted in the groove portion 2g via the adhesive 13. The adhesive 13 is an adhesive for adhering the first weir member piece 12A and the second weir member piece 12B to the outer ring 2, and the first weir member piece 12A and the second weir member piece 12B fit into the groove portion 2g. It is adhered to the outer ring 2 in the mounted state.
　これにより、第１堰部材片１２Ａおよび第２堰部材片１２Ｂが溝部２ｇに固定され、溝部２ｇから抜け出すことが抑制される。なお、第１実施形態に係る堰部材１１についても、例えば接着剤１３が塗布された状態の溝部２ｇに堰部材１１を嵌装することで、接着剤１３を介して溝部２ｇに嵌装された状態とすることができる。 As a result, the first weir member piece 12A and the second weir member piece 12B are fixed to the groove portion 2g and are prevented from coming out of the groove portion 2g. The weir member 11 according to the first embodiment is also fitted into the groove portion 2g via the adhesive 13 by, for example, fitting the weir member 11 into the groove portion 2g in the state where the adhesive 13 is applied. Can be in a state.
　このように、堰部材１２は第１切断部１２ｃおよび第２切断部１２ｄを有しており、第１堰部材片１２Ａと第２堰部材片１２Ｂとに分割されているため、第１堰部材片１２Ａと第２堰部材片１２Ｂとを溝部２ｇに反対側から嵌装することが可能となっている。従って、外輪２とハブ輪３とを組み立てて車輪取り付けフランジ３ｂにハブボルト３ｇを圧入した後に、堰部材１２を溝部２ｇに装着することができる。 As described above, the weir member 12 has the first cut portion 12c and the second cut portion 12d, and is divided into the first weir member piece 12A and the second weir member piece 12B, so that the first weir member 12 It is possible to fit the piece 12A and the second weir member piece 12B into the groove 2g from the opposite side. Therefore, after the outer ring 2 and the hub ring 3 are assembled and the hub bolt 3g is press-fitted into the wheel mounting flange 3b, the weir member 12 can be mounted on the groove portion 2g.
　これにより、堰部材１２の突出高さｈを、外周縁部１２ｂが円Ｐ２または円Ｐ２よりも径方向外側に位置する高さに設定したとしても、車輪取り付けフランジ３ｂにハブボルト３ｇを圧入した後、またはハブボルト３ｇの交換を行った後に、堰部材１２を溝部２ｇに装着することで、堰部材１２とハブボルト３ｇとが干渉することを防止できる。 As a result, even if the protruding height h of the weir member 12 is set to a height at which the outer peripheral edge portion 12b is located radially outside the circle P2 or the circle P2, after the hub bolt 3g is press-fitted into the wheel mounting flange 3b. Alternatively, by mounting the weir member 12 in the groove portion 2g after replacing the hub bolt 3g, it is possible to prevent the weir member 12 and the hub bolt 3g from interfering with each other.
　このように、堰部材１２は、ハブボルト３ｇの圧入後および交換後に外輪に装着することが可能であるため、堰部材１１の場合と同様に、突出高さｈを堰部材１２の外周縁部１２ｂが円Ｐ２または円Ｐ２よりも径方向外側に位置する大きな高さに設定することができ、泥水等の異物の堰き止め量を十分に得ることが可能となる。 As described above, since the weir member 12 can be attached to the outer ring after the hub bolt 3 g is press-fitted and replaced, the protruding height h is set to the outer peripheral edge portion 12b of the weir member 12 as in the case of the weir member 11. Can be set to a large height located radially outside the circle P2 or the circle P2, and a sufficient amount of blocking foreign matter such as muddy water can be obtained.
　なお、本実施形態における堰部材１２は、第１堰部材片１２Ａと第２堰部材片１２Ｂとの２つの堰部材片に分割されているが、３つ以上の堰部材片に分割することも可能である。 The weir member 12 in the present embodiment is divided into two weir member pieces, a first weir member piece 12A and a second weir member piece 12B, but may be divided into three or more weir member pieces. It is possible.
[堰部材の第３実施形態]
　図６Ａに示すように、第３実施形態に係る堰部材１４は、内周部１４ｄと外周部１４ｃとを有しており、内周部１４ｄにおける内周縁部１４ａが外輪２の溝部２ｇに嵌装されている。また、堰部材１４の外周部１４ｃは内周部１４ｄに対して軸方向におけるインナー側へ屈曲されており、外周部１４ｃの外周縁部１４ｂは内周縁部１４ａよりもインナー側に位置している。 [Third Embodiment of a weir member]
As shown in FIG. 6A, the weir member 14 according to the third embodiment has an inner peripheral portion 14d and an outer peripheral portion 14c, and the inner peripheral edge portion 14a in the inner peripheral portion 14d fits into the groove portion 2g of the outer ring 2. It is dressed up. Further, the outer peripheral portion 14c of the weir member 14 is bent toward the inner side in the axial direction with respect to the inner peripheral portion 14d, and the outer peripheral edge portion 14b of the outer peripheral portion 14c is located on the inner side of the inner peripheral edge portion 14a. ..
　このように、堰部材１４の外周部１４ｃをインナー側へ屈曲させることで、外輪２の外周面２ｏからアウター側シール部材１０に向かって流れる泥水等の異物を堰部材１４によって堰き止める際に、泥水等の異物が堰部材１４を超えてアウター側シール部材１０側に流れることを抑制することができる。これにより、堰部材１４による泥水等の異物の堰き止め効果を高めることが可能となる。 By bending the outer peripheral portion 14c of the weir member 14 toward the inner side in this way, when the weir member 14 blocks foreign matter such as muddy water flowing from the outer peripheral surface 2o of the outer ring 2 toward the outer side seal member 10. It is possible to prevent foreign matter such as muddy water from flowing beyond the weir member 14 to the outer side seal member 10. This makes it possible to enhance the effect of the weir member 14 on blocking foreign substances such as muddy water.
　なお、堰部材１４における外周部１４ｃの内周部１４ｄに対する屈曲角度θ１は、泥水等の異物の堰き止め効果を高める観点から、９０度以下とすることが好ましい。また、堰部材１４は、堰部材１１のように１つの切断部を有する態様、または堰部材１２のように複数の切断部を有して複数の堰部材片に分割された態様に構成することができる。 The bending angle θ1 of the outer peripheral portion 14c of the weir member 14 with respect to the inner peripheral portion 14d is preferably 90 degrees or less from the viewpoint of enhancing the effect of blocking foreign substances such as muddy water. Further, the weir member 14 is configured to have one cut portion like the weir member 11, or to have a plurality of cut portions like the weir member 12 and to be divided into a plurality of weir member pieces. Can be done.
[堰部材の第４実施形態]
　図６Ｂに示すように、第４実施形態に係る堰部材１５は、内周部１５ｄと外周部１５ｃとを有しており、内周部１５ｄにおける内周縁部１５ａが外輪２の溝部２ｇに嵌装されている。また、堰部材１５の外周部１５ｃは内周部１５ｄに対して軸方向におけるアウター側へ屈曲されており、外周部１５ｃの外周縁部１５ｂは内周縁部１５ａよりもアウター側に位置している。アウター側へ屈曲された外周部１５ｃは、アウター側シール部材１０の外周部を覆っている。 [Fourth Embodiment of Weir Member]
As shown in FIG. 6B, the weir member 15 according to the fourth embodiment has an inner peripheral portion 15d and an outer peripheral portion 15c, and the inner peripheral edge portion 15a in the inner peripheral portion 15d fits into the groove portion 2g of the outer ring 2. It is dressed up. Further, the outer peripheral portion 15c of the weir member 15 is bent toward the outer side in the axial direction with respect to the inner peripheral portion 15d, and the outer peripheral edge portion 15b of the outer peripheral portion 15c is located on the outer side of the inner peripheral edge portion 15a. .. The outer peripheral portion 15c bent toward the outer side covers the outer peripheral portion of the outer side seal member 10.
　このように、堰部材１５の外周部１５ｃをアウター側へ屈曲させて、外周部１５ｃによりアウター側シール部材１０の外周部を覆うことで、ハブ輪３側からアウター側シール部材１０側へ向けて流れる泥水等の異物を外周部１５ｃによって堰き止めることができる。これにより、泥水等の異物がアウター側シール部材１０に到達することを抑制できる。 In this way, the outer peripheral portion 15c of the weir member 15 is bent toward the outer side, and the outer peripheral portion 15c covers the outer peripheral portion of the outer side seal member 10, so that the hub wheel 3 side is directed toward the outer side seal member 10 side. Foreign matter such as flowing muddy water can be blocked by the outer peripheral portion 15c. As a result, it is possible to prevent foreign matter such as muddy water from reaching the outer side sealing member 10.
　なお、堰部材１５における外周部１５ｃの内周部１５ｄに対する屈曲角度θ２は、泥水等の異物がアウター側シール部材１０に到達することを抑制する観点から、９０度以下とすることが好ましい。また、堰部材１５は、堰部材１１のように１つの切断部を有する態様、または堰部材１２のように複数の切断部を有して複数の堰部材片に分割された態様に構成することができる。 The bending angle θ2 of the outer peripheral portion 15c of the weir member 15 with respect to the inner peripheral portion 15d is preferably 90 degrees or less from the viewpoint of suppressing foreign matter such as muddy water from reaching the outer side sealing member 10. Further, the weir member 15 is configured to have one cut portion like the weir member 11, or to have a plurality of cut portions like the weir member 12 and to be divided into a plurality of weir member pieces. Can be done.
　また、本実施形態における車輪用軸受装置１は、ハブ輪３の外周に内側軌道面３ｃが直接形成されている第３世代構造の車輪用軸受装置１として構成されているがこれに限定するものではなく、ハブ輪３に一対の内輪４が圧入固定された第２世代構造であってもよい。 Further, the wheel bearing device 1 in the present embodiment is configured as a wheel bearing device 1 having a third generation structure in which an inner raceway surface 3c is directly formed on the outer periphery of the hub wheel 3, but the present invention is limited to this. Instead, it may have a second-generation structure in which a pair of inner rings 4 are press-fitted and fixed to the hub wheels 3.
　以上、本発明の実施の形態について説明を行ったが、本発明はこうした実施の形態に何等限定されるものではなく、あくまで例示であって、本発明の要旨を逸脱しない範囲内において、さらに種々なる形態で実施し得ることは勿論のことであり、本発明の範囲は、特許請求の範囲の記載によって示され、さらに特許請求の範囲に記載の均等の意味、および範囲内のすべての変更を含む。 Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, but is merely an example, and is further various as long as it does not deviate from the gist of the present invention. Of course, the scope of the present invention is indicated by the description of the scope of claims, and the equal meaning described in the scope of claims, and all changes within the scope of the claims are made. Including.
　本発明は、車輪用軸受装置に利用可能である。 The present invention can be used for wheel bearing devices.
　　１　　車輪用軸受装置
　　２　　外輪
　　２ａ　インナー側開口部
　　２ｂ　アウター側開口部
　　２ｃ　（インナー側の）外側軌道面
　　２ｄ　（アウター側の）外側軌道面
　　２ｅ　車体取り付けフランジ
　　２ｆ　（外輪の）ボルト孔
　　２ｇ　溝部
　　２ｏ　（外輪の）外周面
　　３　　ハブ輪
　　３ａ　小径段部
　　３ｂ　車輪取り付けフランジ
　　３ｃ　（ハブ輪の）内側軌道面
　　３ｄ　リップ摺動面
　　３ｆ　（ハブ輪の）ボルト孔
　　３ｏ　（ハブ輪の）外周面
　　３ｇ　ハブボルト
　　４　　内輪
　　４ａ　（内輪の）内側軌道面
　　５　　インナー側ボール列
　　６　　アウター側ボール列
　　７　　ボール
　　８　　保持器
　　９　　インナー側シール部材
　１０　　アウター側シール部材
　１１、１２、１４、１５　堰部材
　１２Ａ　第１堰部材片
　１２Ｂ　第２堰部材片
　１１ａ、１２ａ、１４ａ、１５ａ　内周縁部
　１１ｂ、１２ｂ、１４ｂ、１５ｂ　外周縁部
　１１ｃ　切断部
　１１ｄ、１２ｅ、１２ｆ　第１切断面
　１１ｅ、１２ｇ、１２ｈ　第２切断面
　１２ｃ　第１切断部
　１２ｄ　第２切断部
　１３　　接着剤
　１４ｃ、１５ｃ　外周部
　１４ｄ、１５ｄ　内周部
　　Ｃ１　（ハブ輪の）中心軸
　　Ｃ２　（ハブボルトの）中心軸
　　Ｄ１　（外輪の）外径
　　Ｄ２、Ｄ３　（堰部材の）内径
　　Ｐ１　ピッチ円
　　Ｐ２　円
　　ｈ　　突出高さ
　　θ１、θ２　屈曲角度 1 Wheel bearing device 2 Outer ring 2a Inner side opening 2b Outer side opening 2c (inner side) outer raceway surface 2d (outer side) outer raceway surface 2e Body mounting flange 2f (outer ring) bolt hole 2g Groove 2o ( Outer ring surface 3 Hub wheel 3a Small diameter step 3b Wheel mounting flange 3c Inner raceway surface 3d Lip sliding surface 3f (Hub wheel) Bolt hole 3o (Hub wheel) Outer surface 3g Hub bolt 4 Inner ring 4a Inner raceway surface (of inner ring) 5 Inner side ball row 6 Outer side ball row 7 Ball 8 Cage 9 Inner side seal member 10 Outer side seal member 11, 12, 14, 15 Dam member 12A 1st dam member piece 12B No. 2 Dam member pieces 11a, 12a, 14a, 15a Inner peripheral edge 11b, 12b, 14b, 15b Outer peripheral edge 11c Cutting part 11d, 12e, 12f First cutting surface 11e, 12g, 12h Second cutting surface 12c First cutting part 12d 2nd cutting part 13 Adhesive 14c, 15c Outer circumference 14d, 15d Inner circumference C1 (hub wheel) central axis C2 (hub bolt) central axis D1 (outer ring) outer diameter D2, D3 (dam member) inner diameter P1 Pitch circle P2 circle h Protrusion height θ1, θ2 Bending angle

Claims (6)

  1. 　内周に複列の外側軌道面を有する外方部材と、
    　一端部に車輪取り付けフランジを有し、外周に軸方向に延びる小径段部を有するハブ輪、および前記ハブ輪の小径段部に圧入された少なくとも一つの内輪からなり、前記複列の外側軌道面に対向する複列の内側軌道面を有する内方部材と、
    　前記外方部材と前記内方部材との両軌道面間に転動自在に収容された複列の転動体と、
    　前記外方部材と前記内方部材とによって形成された環状空間のアウター側開口端を塞ぐアウター側シール部材と、を備える車輪用軸受装置であって、
    　前記外方部材は、アウター側端部における外周面に周方向に沿って形成される溝部と、
    円環状に形成され、前記溝部に嵌装されて前記外方部材の外周面よりも径方向外側に突出する堰部材とを有し、
    　前記堰部材は、径方向に切断された少なくとも一つの切断部を有することを特徴とする車輪用軸受装置。     An outer member having multiple rows of outer raceway surfaces on the inner circumference,
    It consists of a hub ring having a wheel mounting flange at one end and a small diameter step portion extending in the axial direction on the outer periphery, and at least one inner ring press-fitted into the small diameter step portion of the hub ring, and is composed of the outer raceway surface of the double row. An inner member having a double row of inner raceway surfaces facing the
    A double-row rolling element rotatably housed between both raceway surfaces of the outer member and the inner member, and
    A wheel bearing device including an outer side sealing member that closes an outer side opening end of an annular space formed by the outer member and the inner member.
    The outer member includes a groove formed along the circumferential direction on the outer peripheral surface at the outer side end portion.
    It has a weir member that is formed in an annular shape, is fitted in the groove portion, and projects radially outward from the outer peripheral surface of the outer member.
    A wheel bearing device, wherein the weir member has at least one cut portion cut in the radial direction.
  2. 　前記堰部材は、一つの前記切断部を有するとともに、内周縁部の少なくとも一部における内径が前記外輪の外周面の外径以上となるように屈曲可能な弾性を有する請求項１に記載の車輪用軸受装置。 The wheel according to claim 1, wherein the weir member has one cut portion and has elasticity so that the inner diameter of at least a part of the inner peripheral edge portion is equal to or larger than the outer diameter of the outer peripheral surface of the outer ring. Bearing device.
  3. 　前記堰部材は、複数の前記切断部を有するとともに、複数の堰部材片に分割されており、
    　前記堰部材片は、前記堰部材片と前記外方部材とを接着する接着剤を介して前記溝部に嵌装される請求項１に記載の車輪用軸受装置。     The weir member has a plurality of the cut portions and is divided into a plurality of weir member pieces.
    The wheel bearing device according to claim 1, wherein the weir member piece is fitted in the groove portion via an adhesive that adheres the weir member piece and the outer member.
  4. 　車輪取り付けフランジは、ボルト孔と、前記ボルト孔に圧入されるハブボルトとを有し、
    　前記堰部材の外周縁部は、径方向において前記ハブボルトの内径側端部と、前記ハブボルトの中心軸との間に位置する請求項１～請求項３の何れか一項に記載の車輪用軸受装置。     The wheel mounting flange has a bolt hole and a hub bolt press-fitted into the bolt hole.
    The wheel bearing according to any one of claims 1 to 3, wherein the outer peripheral edge portion of the weir member is located between the inner diameter side end portion of the hub bolt and the central axis of the hub bolt in the radial direction. apparatus.
  5. 　前記堰部材の外周部は、インナー側に屈曲している請求項１～請求項４の何れか一項に記載の車輪用軸受装置。 The wheel bearing device according to any one of claims 1 to 4, wherein the outer peripheral portion of the weir member is bent toward the inner side.
  6. 　前記堰部材の外周部は、アウター側に屈曲している請求項１～請求項４の何れか一項に記載の車輪用軸受装置。 The wheel bearing device according to any one of claims 1 to 4, wherein the outer peripheral portion of the weir member is bent toward the outer side.
PCT/JP2020/012922 2019-05-07 2020-03-24 Vehicle wheel bearing device WO2020225992A1 (en)

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Application Number Priority Date Filing Date Title
JP2019-087766 2019-05-07
JP2019087766A JP2020183781A (en) 2019-05-07 2019-05-07 Wheel bearing device

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4919921Y1 (en) * 1970-12-29 1974-05-28
JPS5743319A (en) * 1980-08-28 1982-03-11 Tokyo Shibaura Electric Co Bushing
JPS6030885A (en) * 1983-07-27 1985-02-16 バブコツク日立株式会社 Joint structure of ceramics pipe
JPS62147111A (en) * 1985-12-17 1987-07-01 Kawasaki Heavy Ind Ltd Divided bearing sleeve and its manufacture
JP2018035825A (en) * 2016-08-29 2018-03-08 Ntn株式会社 Bearing device for wheel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4919921Y1 (en) * 1970-12-29 1974-05-28
JPS5743319A (en) * 1980-08-28 1982-03-11 Tokyo Shibaura Electric Co Bushing
JPS6030885A (en) * 1983-07-27 1985-02-16 バブコツク日立株式会社 Joint structure of ceramics pipe
JPS62147111A (en) * 1985-12-17 1987-07-01 Kawasaki Heavy Ind Ltd Divided bearing sleeve and its manufacture
JP2018035825A (en) * 2016-08-29 2018-03-08 Ntn株式会社 Bearing device for wheel

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