JP2008002524A - Bearing device for wheel - Google Patents

Bearing device for wheel Download PDF

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Publication number
JP2008002524A
JP2008002524A JP2006171001A JP2006171001A JP2008002524A JP 2008002524 A JP2008002524 A JP 2008002524A JP 2006171001 A JP2006171001 A JP 2006171001A JP 2006171001 A JP2006171001 A JP 2006171001A JP 2008002524 A JP2008002524 A JP 2008002524A
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Japan
Prior art keywords
inner member
inboard side
inner ring
spline hole
diameter
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Pending
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JP2006171001A
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Japanese (ja)
Inventor
Kikuo Fukada
貴久夫 深田
Naoshi Hattori
直志 服部
Isao Hirai
功 平井
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NTN Corp
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NTN Corp
NTN Toyo Bearing Co Ltd
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Priority to JP2006171001A priority Critical patent/JP2008002524A/en
Publication of JP2008002524A publication Critical patent/JP2008002524A/en
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    • 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
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings
    • 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
    • F16C19/181—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 with angular contact
    • F16C19/183—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 with angular contact with two rows at opposite angles
    • F16C19/184—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 with angular contact with two rows at opposite angles in O-arrangement
    • F16C19/186—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 with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors

Abstract

<P>PROBLEM TO BE SOLVED: To surely insert a spline shaft into a spline hole without impairing compact design in a bearing device for wheel for fixing a separate inner ring to the outer diameter surface of an inner member by a means which deforms the inner member. <P>SOLUTION: The between-pin diameter of the spline hole 9 in the inner member 3 is formed in a tapered shape increased in diameter toward the inboard side on the inboard side where the separate inner ring 3a is fitted. Consequently, even if the inboard side of the spline hole 9 in the inner member 3 is reduced in diameter by deformation when the inner ring 3a is fitted, the spline shaft of an axle or a constant velocity joint can be surely inserted into the spline hole 9. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、車輪用軸受装置に関する。   The present invention relates to a wheel bearing device.

自動車の駆動側の車輪を支持する車輪用軸受装置には、複列の軌道面を内径側に有し、車体側に固定される外方部材と、この外方部材の各軌道面と対向する複列の軌道面を外径側に有し、内径側に車軸または車軸に連結される等速ジョイントがスプライン結合されるスプライン孔またはセレーション孔（以下、まとめてスプライン孔と呼ぶ）が設けられた内方部材と、これらの外方部材と内方部材の軌道面間に複列に配列された転動体とからなり、内方部材のインボード側の軌道面が別体の内輪の外径面に設けられて、この別体の内輪が内方部材のインボード側の外径面に固定されるものがある。この別体の内輪の固定手段には、内輪を内方部材の外径面に嵌合する手段や、内方部材のインボード側端部を径方向外向きに変形させて、内方部材の外径面にかしめ付ける手段等、内方部材の弾性変形、塑性変形、熱変形等の変形を伴う手段が採用されている。   A wheel bearing device for supporting a wheel on the driving side of an automobile has a double-row raceway surface on the inner diameter side, an outer member fixed on the vehicle body side, and faces each raceway surface of the outer member. A spline hole or serration hole (hereinafter collectively referred to as a spline hole) in which a double-row raceway surface is provided on the outer diameter side and an axle or a constant velocity joint connected to the axle is splined on the inner diameter side. The inner member and rolling elements arranged in a double row between the outer member and the inner member raceway surface, and the inner member raceway surface on the inboard side is the outer diameter surface of the separate inner ring. The separate inner ring is fixed to the outer diameter surface on the inboard side of the inner member. This separate inner ring fixing means includes means for fitting the inner ring to the outer diameter surface of the inner member, or by deforming the inboard side end portion of the inner member outward in the radial direction. Means that involve deformation such as elastic deformation, plastic deformation, and thermal deformation of the inner member, such as means for caulking to the outer diameter surface, are employed.

このように別体の内輪を、内方部材の変形を伴う手段で、内方部材のインボード側の外径面に固定する車輪用軸受装置では、内輪の嵌合圧力や、内方部材のインボード側端部を径方向外向きに変形させるかしめ加工等によって、内方部材のスプライン孔がインボード側で縮径するように変形し、車軸や等速ジョイントのスプライン軸がスプライン孔に挿入不能となることがある。   Thus, in the wheel bearing device for fixing the separate inner ring to the outer diameter surface on the inboard side of the inner member by means involving deformation of the inner member, the fitting pressure of the inner ring or the inner member The spline hole of the inner member is deformed to reduce the diameter on the inboard side by caulking, etc. that deforms the inboard side end part radially outward, and the spline shaft of the axle or constant velocity joint is inserted into the spline hole It may become impossible.

かしめ加工によるスプライン孔のインボード側での縮径変形でスプライン軸が挿入不能となることを防止する手段としては、径方向外向きにかしめ加工される内方部材のインボード側端部とスプライン孔の入口との間に、スプライン孔の縮径変形を抑制する緩衝部分を形成する方法が提案されている（例えば、特許文献１参照）。また、中空穴を有する部品がかしめや溶接等により非可逆的に変形され、多部品と一体に組み立てられた車輪用軸受装置等のユニット組立品におけるスプライン孔の変形に対処する手段としては、ユニット組立品を組み立てた後に、スプライン孔を加工する方法が提案されている（例えば、特許文献２参照）。   As a means to prevent the spline shaft from being unable to be inserted due to the reduced diameter deformation on the inboard side of the spline hole by caulking, the inboard side end of the inner member that is caulked radially outward and the spline There has been proposed a method of forming a buffer portion that suppresses the deformation of the spline hole from being reduced between the inlet of the hole (for example, see Patent Document 1). In addition, as a means for coping with deformation of spline holes in a unit assembly such as a wheel bearing device in which a part having a hollow hole is irreversibly deformed by caulking, welding, or the like and is assembled integrally with multiple parts, a unit A method of processing a spline hole after assembling an assembly has been proposed (see, for example, Patent Document 2).

特開２００２−２９２１０号公報JP 2002-29210 A 特開２００４−１２２３４５号公報JP 2004-122345 A

特許文献１に記載された、かしめ加工される内方部材のインボード側端部とスプライン孔の入口との間に、スプライン孔の縮径変形を抑制する緩衝部分を形成する方法は、緩衝部分を余分に設ける必要があるので、内方部材の軸方向の長さ寸法が大きくなり、コンパクトな設計が阻害される問題がある。   The method of forming a buffer part for suppressing the diameter reduction deformation of the spline hole between the inboard side end part of the inner member to be caulked and the inlet of the spline hole described in Patent Document 1 is provided as a buffer part. Therefore, there is a problem that the axial dimension of the inner member is increased and the compact design is hindered.

また、特許文献２に記載されたように、ユニット組立品としての車輪用軸受装置を組み立てた後に、内方部材のスプライン孔を加工する方法は、加工時に降りかかる切屑粉等が、軸受部のシール部材等を損傷したり、軸受内部に侵入したりする恐れがある。   In addition, as described in Patent Document 2, after assembling the wheel bearing device as a unit assembly, the method of processing the spline hole of the inner member is such that chip powder or the like that falls during processing is a seal of the bearing portion. There is a risk of damaging a member or the like or entering the inside of the bearing.

そこで、本発明の課題は、別体の内輪を、内方部材の変形を伴う手段で、内方部材の外径面に固定する車輪用軸受装置において、コンパクトな設計を阻害することなく、スプライン孔にスプライン軸を確実に挿入できるようにすることである。   Accordingly, an object of the present invention is to provide a spline that does not hinder a compact design in a wheel bearing device in which a separate inner ring is fixed to an outer diameter surface of an inner member by means of deformation of the inner member. This is to ensure that the spline shaft can be inserted into the hole.

上記の課題を解決するために、本発明は、複列の軌道面を内径側に有し、車体側に固定される外方部材と、この外方部材の各軌道面と対向する複列の軌道面を外径側に有し、内径側に車軸または車軸に連結される等速ジョイントがスプライン結合されるスプライン孔が設けられた内方部材と、これらの外方部材と内方部材の軌道面間に複列に配列された転動体とからなり、前記内方部材のインボード側の軌道面が別体の内輪の外径面に設けられ、この別体の内輪が内方部材のインボード側の外径面に、内方部材の変形を伴う固定手段で固定される車輪用軸受装置において、前記内方部材のスプライン孔のビトゥインピン径を、前記別体の内輪が固定されるインボード側で、インボード側へ拡径するテーパ状に形成した構成を採用した。   In order to solve the above-described problems, the present invention has an outer member that has a double-row raceway surface on the inner diameter side and is fixed to the vehicle body side, and a double-row facing each raceway surface of the outer member. An inner member having a raceway surface on the outer diameter side and provided with a spline hole to which the constant velocity joint connected to the axle or the axle is splined on the inner diameter side, and the tracks of the outer member and the inner member. The inner member is provided with a raceway surface on the inboard side of the inner member on the outer diameter surface of a separate inner ring. In a wheel bearing device fixed to a board-side outer diameter surface by a fixing means accompanied by deformation of the inner member, the in-board in which the separate inner ring is fixed to the diameter of the bit line of the spline hole of the inner member On the side, a configuration formed in a tapered shape that expands to the inboard side was adopted.

すなわち、内方部材のスプライン孔のビトゥインピン径を、別体の内輪が固定されるインボード側で、インボード側へ拡径するテーパ状に形成することにより、内輪の固定で内方部材のスプライン孔のインボード側が縮径変形しても、車軸や等速ジョイントのスプライン軸を確実にスプライン孔に挿入できるようにした。   That is, the inner member spline is fixed by forming the diameter of the inner pin spline hole with a tapered shape that expands toward the inboard side on the inboard side where the separate inner ring is fixed. Even if the inboard side of the hole is reduced in diameter, the spline shaft of the axle or constant velocity joint can be securely inserted into the spline hole.

前記内方部材の変形を伴う固定手段は、前記別体の内輪を前記内方部材の外径面に嵌合で固定するものとすることができる。   The fixing means accompanying the deformation of the inner member may fix the separate inner ring to the outer diameter surface of the inner member by fitting.

前記内方部材の変形を伴う固定手段は、前記内方部材のインボード側端部を径方向外向きに変形させて、前記別体の内輪を前記内方部材の外径面にかしめ付けで固定するものとすることもできる。   The fixing means accompanied by the deformation of the inner member is formed by deforming an inboard side end portion of the inner member radially outward and caulking the separate inner ring to the outer diameter surface of the inner member. It can also be fixed.

本発明の車輪用軸受装置は、内方部材のスプライン孔のビトゥインピン径を、別体の内輪が固定されるインボード側で、インボード側へ拡径するテーパ状に形成したので、内輪の固定で内方部材のスプライン孔のインボード側が縮径変形しても、車軸や等速ジョイントのスプライン軸を確実にスプライン孔に挿入することができる。   In the wheel bearing device of the present invention, the diameter of the bit line of the spline hole of the inner member is formed on the inboard side to which the separate inner ring is fixed, and the inner ring is fixed. Thus, even if the inboard side of the spline hole of the inner member is reduced in diameter, the spline shaft of the axle or the constant velocity joint can be reliably inserted into the spline hole.

以下、図面に基づき、本発明の実施形態を説明する。図１乃至図３は、第１の実施形態を示す。この車輪用軸受装置は駆動側の車輪を支持するものであり、図１に示すように、複列の軌道面２ａ、２ｂを内径側に有し、車体側に固定されるフランジ６を外径側に有する外方部材１と、外方部材１の各軌道面２ａ、２ｂと対向する複列の軌道面４ａ、４ｂと、車輪がハブボルト７で取り付けられるフランジ８とを外径側に有し、内径側に車軸または車軸に連結される等速ジョイントがスプライン結合されるスプライン孔９が設けられた内方部材３と、これらの外方部材１の各軌道面２ａ、２ｂと内方部材３の各軌道面４ａ、４ｂの間に複列に配列された転動体としてのボール５とからなる。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment. As shown in FIG. 1, this wheel bearing device supports a drive-side wheel, and has double-row raceway surfaces 2a and 2b on the inner diameter side, and a flange 6 fixed on the vehicle body side has an outer diameter. The outer member 1 on the side, the double-row raceway surfaces 4a and 4b facing the raceway surfaces 2a and 2b of the outer member 1, and the flange 8 to which the wheel is attached by the hub bolt 7 are provided on the outer diameter side. The inner member 3 is provided with a spline hole 9 in which an axle or a constant velocity joint connected to the axle is splined on the inner diameter side, and the raceway surfaces 2a and 2b of the outer member 1 and the inner member 3 And the balls 5 as rolling elements arranged in a double row between the raceway surfaces 4a and 4b.

前記内方部材３のインボード側の軌道面４ｂは別体の内輪３ａの外径面に設けられ、この内輪３ａが内方部材３のインボード側の外径面に嵌合で固定されている。また、ボール５が複列に配列された軸受内部は、アウトボード側とインボード側とを、それぞれシール部材１０ａ、１０ｂで密封されている。   A raceway surface 4b on the inboard side of the inner member 3 is provided on an outer diameter surface of a separate inner ring 3a, and the inner ring 3a is fixed to the outer diameter surface of the inner member 3 on the inboard side by fitting. Yes. Further, the inside of the bearing in which the balls 5 are arranged in a double row is sealed on the outboard side and the inboard side by seal members 10a and 10b, respectively.

図２は、前記別体の内輪３ａが外径面に嵌合で固定される前の内方部材３を拡大して示す。内方部材３のインボード側のスプライン孔９は、内輪３ａの嵌合によってスプライン孔９が縮径変形しても、車軸や等速ジョイントのスプライン軸が挿入できるように、そのビトゥインピン径がインボード側へ拡径する傾斜角αのテーパ状に形成されている。   FIG. 2 is an enlarged view of the inner member 3 before the separate inner ring 3a is fixed to the outer diameter surface by fitting. The spline hole 9 on the inboard side of the inner member 3 has an in-pin diameter so that the spline shaft of an axle or a constant velocity joint can be inserted even if the spline hole 9 is deformed and deformed by fitting the inner ring 3a. It is formed in a taper shape with an inclination angle α that expands toward the board side.

前記インボード側でのスプライン孔９のビトゥインピン径のテーパ状傾斜角αは、以下のように決定した。図３に示すように、スプライン孔９を従来のようにストレート形状とした内方部材３のインボード側の外径面に内輪３ａを嵌合し、スプライン孔９のインボード側の入口から１ｍｍの位置で、嵌合前後のビトゥインピン径を計測することにより、ビトゥインピン径の縮径量δを測定した。内輪３ａの嵌合の締め代は約０．０４８ｍｍとし、嵌合のサンプル数Ｎは６個とした。また、内輪３ａがスプライン孔９と重なる嵌合長さＬ１は８．２５ｍｍとした。 The tapered inclination angle α of the bite-in pin diameter of the spline hole 9 on the inboard side was determined as follows. As shown in FIG. 3, the inner ring 3a is fitted to the outer diameter surface of the inboard side of the inner member 3 in which the spline hole 9 has a straight shape as in the prior art, and 1 mm from the inlet on the inboard side of the spline hole 9 At this position, the diameter of the twin pin diameter δ was measured by measuring the diameter of the twin pin before and after the fitting. The tightening allowance for fitting the inner ring 3a was about 0.048 mm, and the number of fitting samples N was six. Further, the fitting length L 1 of the inner ring 3a overlaps the spline hole 9 was set to 8.25 mm.

表１に、前記縮径量δの測定結果を示す。ビトゥインピン径の計測はスプライン孔９の直交する２方向の位相（０°、９０°）で行い、この直交２方向の測定結果を平均して縮径量δを算出した。   Table 1 shows the measurement results of the diameter reduction amount δ. The measurement of the diameter of the beatuin pin was performed in two orthogonal phases (0 °, 90 °) of the spline hole 9, and the diameter reduction amount δ was calculated by averaging the measurement results in the two orthogonal directions.

Figure 2008002524
Figure 2008002524

表１に示した測定結果の縮径量δを見込んで、図２に示したように、ビトゥインピン径の拡径の起点Ｐを、内方部材３と内輪３ａとの突き当て面の位置（スプライン孔９のインボード側の入口から１０．２５ｍｍの位置）とし、テーパの傾斜角αは５．５′とした。   In consideration of the diameter reduction amount δ of the measurement results shown in Table 1, as shown in FIG. 2, the starting point P of the expansion of the bite-in pin diameter is set to the position of the abutting surface between the inner member 3 and the inner ring 3a (spline The position of the hole 9 was 10.25 mm from the inlet on the inboard side), and the taper inclination angle α was 5.5 ′.

図４乃至図６は、第２の実施形態を示す。この車輪用軸受装置は、図４に示すように、基本的な構成は第１の実施形態のものと同じであり、前記別体の内輪３ａが内方部材３のインボード側の外径面にかしめ付けで固定されている点のみが異なる。   4 to 6 show a second embodiment. As shown in FIG. 4, the wheel bearing device has the same basic configuration as that of the first embodiment, and the separate inner ring 3 a is an outer diameter surface on the inboard side of the inner member 3. The only difference is that it is fixed by caulking.

図５は、前記別体の内輪３ａが外径面にかしめ付けで固定される前の内方部材３を拡大して示す。内方部材３のインボード側のスプライン孔９は、内方部材３のインボード側端部のかしめ加工によってスプライン孔９が縮径変形しても、車軸や等速ジョイントのスプライン軸が挿入できるように、そのビトゥインピン径がインボード側へ拡径する傾斜角αのテーパ状に形成されている。   FIG. 5 is an enlarged view of the inner member 3 before the separate inner ring 3a is fixed to the outer diameter surface by caulking. The spline hole 9 on the inboard side of the inner member 3 can be inserted into an axle or a spline shaft of a constant velocity joint even if the spline hole 9 is reduced in diameter by caulking at the end of the inboard side of the inner member 3. As described above, the diameter of the between pin is formed in a tapered shape with an inclination angle α that expands toward the inboard side.

前記インボード側でのスプライン孔９のビトゥインピン径のテーパ状傾斜角αは、以下のように決定した。図６に示すように、スプライン孔９をストレート形状とした内方部材３の外径面に、内方部材３のインボード側端部をかしめ加工して内輪３ａを固定し、スプライン孔９のインボード側の入口から１ｍｍの位置で、かしめ加工前後のビトゥインピン径を計測することにより、ビトゥインピン径の縮径量δを測定した。内輪３ａのかしめ付けのサンプル数Ｎは６個とした。また、かしめ付けられる内輪３ａの外側端面とスプライン孔９の入口との距離Ｌ２は６．０ｍｍとした。 The tapered inclination angle α of the bite-in pin diameter of the spline hole 9 on the inboard side was determined as follows. As shown in FIG. 6, the inner ring 3 a is fixed by caulking the inboard side end of the inner member 3 on the outer diameter surface of the inner member 3 having the spline hole 9 in a straight shape. By measuring the diameter of the beatuin pin before and after caulking at a position 1 mm from the inlet on the inboard side, the reduction amount δ of the bitein pin diameter was measured. The number N of samples for caulking the inner ring 3a was six. The distance L 2 between the outer end face and the inlet of the spline hole 9 of the inner ring 3a, which is crimped was 6.0 mm.

表２に、前記縮径量δの測定結果を示す。実施例１と同様に、ビトゥインピン径の計測はスプライン孔９の直交する２方向の位相（０°、９０°）で行い、この直交２方向の測定結果を平均して縮径量δを算出した。   Table 2 shows the measurement results of the diameter reduction amount δ. As in Example 1, the measurement of the beatin pin diameter was performed in two orthogonal phases (0 °, 90 °) of the spline hole 9, and the diameter reduction amount δ was calculated by averaging the measurement results in the two orthogonal directions. .

Figure 2008002524
Figure 2008002524

表２に示した測定結果の縮径量δを見込んで、図５に示したように、ビトゥインピン径の拡径の起点Ｐを、内方部材３と内輪３ａとの突き当て面の位置（スプライン孔９のインボード側の入口から１７．０ｍｍの位置）とし、テーパの傾斜角αは２．１′とした。   In consideration of the diameter reduction amount δ of the measurement results shown in Table 2, as shown in FIG. 5, the starting point P of the expansion of the bite pin diameter is set to the position of the abutting surface between the inner member 3 and the inner ring 3a (spline). The position of the hole 9 was 17.0 mm from the inboard side entrance), and the taper inclination angle α was 2.1 ′.

上述した第２の実施形態では、別体の内輪をかしめ付けのみで固定したが、内方部材の外径面に外嵌される内輪に締め代を付与することもできる。この場合は、この締め代によるスプライン孔の縮径変形も見込んで、テーパ状の傾斜角αを少し大きくするとよい。   In the second embodiment described above, the separate inner ring is fixed only by caulking, but a tightening margin can also be given to the inner ring that is fitted onto the outer diameter surface of the inner member. In this case, it is preferable that the tapered inclination angle α is slightly increased in consideration of the diameter reduction deformation of the spline hole due to the tightening allowance.

第１の実施形態の車輪用軸受装置を示す縦断面図The longitudinal cross-sectional view which shows the wheel bearing apparatus of 1st Embodiment 図１の内輪が嵌合で固定される前の内方部材の要部を拡大して示す断面図Sectional drawing which expands and shows the principal part of the inner member before the inner ring of FIG. 1 is fixed by fitting. 図１の内輪の嵌合によるスプライン孔の縮径量の測定実施例を説明する断面図Sectional drawing explaining the measurement Example of the amount of diameter reduction of the spline hole by the fitting of the inner ring of FIG. 第２の実施形態の車輪用軸受装置を示す縦断面図The longitudinal cross-sectional view which shows the wheel bearing apparatus of 2nd Embodiment 図４の内輪がかしめ付けで固定される前の内方部材の要部を拡大して示す断面図Sectional drawing which expands and shows the principal part of the inner member before the inner ring | wheel of FIG. 4 is fixed by caulking. 図４の内方部材のかしめ加工によるスプライン孔の縮径量の測定実施例を説明する断面図Sectional drawing explaining the measurement Example of the amount of diameter reduction of the spline hole by caulking of the inner member of FIG.

符号の説明Explanation of symbols

１ 外方部材
２ａ、２ｂ 軌道面
３ 内方部材
３ａ 内輪
４ａ、４ｂ 軌道面
５ ボール
６ フランジ
７ ハブボルト
８ フランジ
９ スプライン孔
１０ａ、１０ｂ シール部材 DESCRIPTION OF SYMBOLS 1 Outer member 2a, 2b Track surface 3 Inner member 3a Inner ring 4a, 4b Track surface 5 Ball 6 Flange 7 Hub bolt 8 Flange 9 Spline hole 10a, 10b Seal member

Claims (3)

複列の軌道面を内径側に有し、車体側に固定される外方部材と、この外方部材の各軌道面と対向する複列の軌道面を外径側に有し、内径側に車軸または車軸に連結される等速ジョイントがスプライン結合されるスプライン孔が設けられた内方部材と、これらの外方部材と内方部材の軌道面間に複列に配列された転動体とからなり、前記内方部材のインボード側の軌道面が別体の内輪の外径面に設けられ、この別体の内輪が内方部材のインボード側の外径面に、内方部材の変形を伴う固定手段で固定される車輪用軸受装置において、前記内方部材のスプライン孔のビトゥインピン径を、前記別体の内輪が固定されるインボード側で、インボード側へ拡径するテーパ状に形成したことを特徴とする車輪用軸受装置。   A double-row raceway surface on the inner diameter side, an outer member fixed to the vehicle body side, and a double-row raceway surface facing each raceway surface of the outer member on the outer diameter side, An inner member provided with a spline hole to which an axle or a constant velocity joint connected to the axle is splined, and rolling elements arranged in a double row between the outer member and the raceway surface of the inner member The inner member raceway surface on the inboard side is provided on the outer diameter surface of a separate inner ring, and this separate inner ring is deformed to the outer diameter surface on the inboard side of the inner member. In the wheel bearing device fixed by the fixing means including the inner member, the spline hole of the inner member has a bite-in pin diameter that is tapered toward the inboard side on the inboard side to which the separate inner ring is fixed. A wheel bearing device characterized by being formed. 前記内方部材の変形を伴う固定手段が、前記別体の内輪を前記内方部材の外径面に嵌合で固定するものである請求項１に記載の車輪用軸受装置。   The wheel bearing device according to claim 1, wherein the fixing means accompanied with the deformation of the inner member fixes the separate inner ring to the outer diameter surface of the inner member by fitting. 前記内方部材の変形を伴う固定手段が、前記内方部材のインボード側端部を径方向外向きに変形させて、前記別体の内輪を前記内方部材の外径面にかしめ付けで固定するものである請求項１に記載の車輪用軸受装置。   The fixing means accompanied by the deformation of the inner member deforms the inboard side end portion of the inner member radially outward, and caulks the separate inner ring to the outer diameter surface of the inner member. The wheel bearing device according to claim 1, which is fixed.
JP2006171001A 2006-06-21 2006-06-21 Bearing device for wheel Pending JP2008002524A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013100091A (en) * 2012-11-22 2013-05-23 Ntn Corp Bearing device for wheel
CN109650254A (en) * 2018-12-27 2019-04-19 江苏核电有限公司 A kind of nuclear power station ring hangs horizontal wheels used
EP4147817A1 (en) * 2021-09-10 2023-03-15 Ntn-Snr Roulements Method for assembling at least one ring engaging by bracing, with a mounting for bracing of a part

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004076872A (en) * 2002-08-20 2004-03-11 Ntn Corp Bearing for driving wheels
JP2005240942A (en) * 2004-02-27 2005-09-08 Nsk Ltd Bearing device for drive pulley and machining method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004076872A (en) * 2002-08-20 2004-03-11 Ntn Corp Bearing for driving wheels
JP2005240942A (en) * 2004-02-27 2005-09-08 Nsk Ltd Bearing device for drive pulley and machining method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013100091A (en) * 2012-11-22 2013-05-23 Ntn Corp Bearing device for wheel
CN109650254A (en) * 2018-12-27 2019-04-19 江苏核电有限公司 A kind of nuclear power station ring hangs horizontal wheels used
EP4147817A1 (en) * 2021-09-10 2023-03-15 Ntn-Snr Roulements Method for assembling at least one ring engaging by bracing, with a mounting for bracing of a part
FR3126900A1 (en) * 2021-09-10 2023-03-17 Ntn-Snr Roulements Method for assembling at least one ring cooperating by hooping with a one-piece hooping seat

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