JP2003049861A - Cage of fixed constant velocity universal joint and its manufacturing method and fixed constant velocity universal joint - Google Patents
Cage of fixed constant velocity universal joint and its manufacturing method and fixed constant velocity universal jointInfo
- Publication number
- JP2003049861A JP2003049861A JP2001236621A JP2001236621A JP2003049861A JP 2003049861 A JP2003049861 A JP 2003049861A JP 2001236621 A JP2001236621 A JP 2001236621A JP 2001236621 A JP2001236621 A JP 2001236621A JP 2003049861 A JP2003049861 A JP 2003049861A
- Authority
- JP
- Japan
- Prior art keywords
- cage
- spherical
- outer ring
- universal joint
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
- F16D2003/22303—Details of ball cages
Abstract
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【発明の属する技術分野】この発明は、外輪と内輪の相
互間で回転トルクを伝達する固定式等速自在継手のケー
ジおよびその製造方法並びに固定式等速自在継手に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixed type constant velocity universal joint cage for transmitting rotational torque between an outer ring and an inner ring, a method for manufacturing the cage, and a fixed type constant velocity universal joint.
【０００２】[0002]
【従来の技術】固定式等速自在継手として図５に示した
ものが従来から知られている。この等速自在継手は、外
輪５０の球形内面５１と内輪５２の球形外面５３に複数
の曲線状トラック溝５４、５５を形成し、継手径方向で
対向するトラック溝５４、５５間にトルク伝達ボール５
６を組込んでいる。2. Description of the Related Art A fixed type constant velocity universal joint shown in FIG. 5 is conventionally known. In this constant velocity universal joint, a plurality of curved track grooves 54, 55 are formed on the spherical inner surface 51 of the outer ring 50 and the spherical outer surface 53 of the inner ring 52, and a torque transmitting ball is formed between the track grooves 54, 55 facing each other in the joint radial direction. 5
6 is incorporated.
【０００３】また、外輪５０の球形内面５１および内輪
５２の球形外面５３に接触案内される球形外面５８およ
び球形内面５９を有するケージ５７に前記トルク伝達ボ
ール５６が収容される複数のポケット６０を設けてい
る。A cage 57 having a spherical inner surface 51 of the outer ring 50 and a spherical outer surface 53 of the inner ring 52 and a spherical outer surface 58 and a spherical inner surface 59 which are guided to contact each other is provided with a plurality of pockets 60 for accommodating the torque transmitting balls 56. ing.
【０００４】ここで、外輪５０に形成されたトラック溝
５４の曲率中心Ａ1 と、内輪５２に設けられたトラック
溝５５の曲率中心Ａ2 は継手の角度中心Ｏ0 に対して左
右に等距離オフセットされ、外輪５０と内輪５２とが作
動角をとってトルクを伝達するトルク伝達時に、その作
動角の２等分位置を通る直線と直交する平面上にトルク
伝達ボール５６を位置させて等速性を確保するようにし
ている。Here, the center of curvature A 1 of the track groove 54 formed in the outer ring 50 and the center of curvature A 2 of the track groove 55 formed in the inner ring 52 are equidistant to the left and right with respect to the angular center O 0 of the joint. At the time of torque transmission in which the outer ring 50 and the inner ring 52 are offset and transmit torque with an operating angle, the torque transmitting ball 56 is positioned on a plane orthogonal to a straight line passing through the bisecting position of the operating angle to obtain a constant velocity. I try to secure the sex.
【０００５】上記等速自在継手においては、外輪５０と
内輪５２とが作動角をとって回転トルクを伝達すると
き、ケージ５７の球形外面５８は外輪５０の球形内面５
１に接触案内されると共に、球形内面５９は内輪５２の
球形外面５３に接触案内され、さらに、トルク伝達ボー
ル５６はポケット６０のケージ軸方向で対向する一対の
側面６１を擦りながら移動するため、ケージ５７には耐
摩耗性が要求される。In the above-mentioned constant velocity universal joint, when the outer ring 50 and the inner ring 52 form an operating angle and transmit the rotational torque, the spherical outer surface 58 of the cage 57 has the spherical inner surface 5 of the outer ring 50.
1, the spherical inner surface 59 is contacted and guided by the spherical outer surface 53 of the inner ring 52, and the torque transmission balls 56 move while rubbing a pair of side surfaces 61 of the pocket 60 that face each other in the cage axial direction. The cage 57 is required to have wear resistance.
【０００６】そこで、従来は、図６に示す製造方法を採
用してケージ５７を製造するようにしている。この製造
方法は、下記の７工程から成る。
第１工程；パイプを切断して図６（Ｉ）に示す筒状体Ｐ
1 を形成する。
第２工程；筒状体Ｐ1 を軸方向両端からプレスして、図
６（II）に示すように、外周面および内周面が円弧状に
わん曲するケージ素形材Ｐ2 を形成する。
第３工程；ケージ素形材Ｐ2 の外周面および内周面を旋
削して、図６（III ）に示すように球形外面５８および
球形内面５９を形成する。
第４工程；ケージ素形材Ｐ2 を打抜きプレスして、図６
（IV）に示すように複数のポケット６０を形成する。
第５工程；各ポケット６０の内周をシェービングして、
ポケット６０のケージ軸方向で対向する一対の側面６１
を削り、その一対の側面６１間の寸法をトルク伝達ボー
ル５６の外径にほぼ一致させる（図６（Ｖ）参照）。
第６工程；ポケット形成後のケージ素形材Ｐ2 を熱処理
して表面硬さを高める。この場合、熱処理として浸炭焼
入れが採用される。
第７工程；熱処理後のケージ素形材Ｐ2 の外周および内
周を研削して、図６（VI）に示すように、球形外面５８
および球形内面５９を仕上げ、ケージ５７を形成する。Therefore, conventionally, the cage 57 is manufactured by adopting the manufacturing method shown in FIG. This manufacturing method consists of the following seven steps. First step: cutting the pipe to form a cylindrical body P shown in FIG.
To form a 1. Second step: The cylindrical body P 1 is pressed from both ends in the axial direction to form a cage blank P 2 having an outer peripheral surface and an inner peripheral surface curved in an arc shape as shown in FIG. 6 (II). . Third step: The outer peripheral surface and the inner peripheral surface of the cage blank P 2 are turned to form a spherical outer surface 58 and a spherical inner surface 59 as shown in FIG. 6 (III). Fourth step: Cage blank P 2 is punched and pressed, as shown in FIG.
A plurality of pockets 60 are formed as shown in (IV). Fifth step: shaving the inner circumference of each pocket 60,
A pair of side surfaces 61 facing each other in the cage axial direction of the pocket 60
Is cut, and the dimension between the pair of side surfaces 61 is made substantially equal to the outer diameter of the torque transmission ball 56 (see FIG. 6 (V)). Sixth step: The cage blank P 2 after the pocket formation is heat-treated to increase the surface hardness. In this case, carburizing and quenching is adopted as the heat treatment. Seventh step; the outer periphery and the inner periphery of the cage raw material P 2 after the heat treatment are ground to form a spherical outer surface 58 as shown in FIG. 6 (VI).
And the spherical inner surface 59 is finished to form a cage 57.
【０００７】上記の製造方法においては、ポケット６０
の打抜き後に浸炭焼入れしているため、ケージ５７の表
層部では、図７（Ｉ）、（II）に示すように、硬化層６
２の浸炭深さは全体にわたって一定の深さに仕上がり、
その表面硬さはＨＲＣ５８〜６３ときわめて硬く、耐摩
耗性に優れたケージ５７を得ることができるという特徴
を有する。In the above manufacturing method, the pocket 60 is used.
As shown in FIGS. 7 (I) and (II), the hardened layer 6 is formed in the surface layer portion of the cage 57 because it is carburized and quenched after punching.
The carburizing depth of 2 is finished to a constant depth throughout,
The surface hardness is HRC 58 to 63, which is extremely hard, and the cage 57 having excellent wear resistance can be obtained.
【０００８】[0008]
【発明が解決しようとする課題】ところで、前述従来の
ケージ５７においては、ケージ素形材Ｐ2 に形成された
ポケット６０の一対の側面６１をシェービングにより仕
上げたのち、浸炭焼入れを施すようにしているため、ポ
ケット６０の窓幅寸法（一対の側面６１間の寸法）のバ
ラツキが大きい。By the way, in the above-mentioned conventional cage 57, the pair of side surfaces 61 of the pocket 60 formed in the cage blank P 2 is finished by shaving and then carburized and quenched. Therefore, the window width of the pocket 60 (the size between the pair of side surfaces 61) varies greatly.
【０００９】このため、等速自在継手の組立てに際し
て、ポケット６０の窓幅寸法に応じてケージ５７をラン
ク分けすると共に、トルク伝達ボール５６もポケット６
０の窓幅毎にランクを設けて、ポケット６０とトルク伝
達ボール５６のマッチングを行う必要があり、適当なす
きまが得られない場合は、ポケット６０の側面６１を研
削する必要が生じる。このため、組立てに非常に手間が
かかり、その組立て性を向上させるうえにおいても改善
すべき点が残されている。Therefore, when assembling the constant velocity universal joint, the cage 57 is ranked according to the window width of the pocket 60, and the torque transmitting balls 56 are also arranged in the pocket 6.
It is necessary to provide a rank for each window width of 0 to match the pocket 60 with the torque transmission ball 56, and if the appropriate clearance cannot be obtained, the side surface 61 of the pocket 60 needs to be ground. Therefore, it takes a lot of time and effort to assemble, and there is a point to be improved in improving the assemblability.
【００１０】一般に、固定式等速自在継手においては、
外輪と内輪とが作動角をとって回転トルクを伝達すると
き、トルク伝達ボールには外輪の開口側に押し出される
ような負荷を受ける。このため、トルク伝達ボールから
ケージのポケットに負荷される荷重は、ポケットの外輪
開口側の側面で大きく、外輪奥側の側面では小さい。Generally, in a fixed type constant velocity universal joint,
When the outer ring and the inner ring form a working angle and transmit the rotational torque, the torque transmitting balls are subjected to a load that pushes them toward the opening side of the outer ring. Therefore, the load applied from the torque transmission balls to the pocket of the cage is large on the side surface of the pocket on the outer ring opening side and small on the side surface of the outer ring on the inner ring side.
【００１１】このため、ポケットのケージ軸方向で対向
する側面のうち、外輪開口側の側面には大きな表面硬さ
が要求されるものの、外輪奥側の側面にはそれほど大き
な表面硬さは要求されない。Therefore, of the side surfaces of the pocket that face each other in the axial direction of the pocket, a large surface hardness is required for the side surface on the outer ring opening side, but not so large for the side surface on the inner ring side of the outer ring. .
【００１２】本件の発明者は、そのような知見に基づ
き、ケージの熱処理後にポケットの外輪奥側の側面のみ
を切削して、その側面とポケット中心までの寸法を規定
の寸法に仕上げることにより、ポケットの外輪開口側の
側面に所定の表面硬さを確保する状態でポケットの寸法
精度を向上させることを見出したのである。Based on such knowledge, the inventor of the present invention cuts only the side surface of the pocket on the inner side of the outer ring after heat treatment of the cage, and finishes the dimension between the side surface and the center of the pocket to a prescribed dimension. The inventors have found that the dimensional accuracy of the pocket is improved in the state where a predetermined surface hardness is secured on the side surface of the pocket on the outer ring opening side.
【００１３】この発明の課題は、ポケットの寸法精度を
高め、ポケットとトルク伝達ボールのマッチングを行な
うことなくトルク伝達ボールを組込むことができるよう
にしたケージおよびその製造方法並びに固定式等速自在
継手を提供することである。An object of the present invention is to improve the dimensional accuracy of the pocket and to install the torque transmitting ball without matching the pocket and the torque transmitting ball, a method of manufacturing the cage, and a fixed type constant velocity universal joint. Is to provide.
【００１４】[0014]
【課題を解決するための手段】上記の課題を解決するた
めに、この発明に係るケージにおいては、外輪の球形内
面に接触案内される球形外面および内輪の球形外面に接
触案内される球形内面を有する筒体部の周方向に前記外
輪と内輪の相互間で回転トルクを伝達するトルク伝達ボ
ールが収容される複数のポケットを等間隔に形成した固
定式等速自在継手のケージにおいて、前記ポケットのケ
ージ軸方向で対向する一対の側面のうち、外輪開口側の
側面をケージの熱処理前にシェービングされた面とし、
かつ外輪奥側の側面をケージの熱処理後切削された面と
して、その表面硬さを外輪開口側の側面の表面硬さより
低くした構成を採用したのである。In order to solve the above-mentioned problems, in the cage according to the present invention, a spherical outer surface which is contact-guided to the spherical inner surface of the outer ring and a spherical inner surface which is contact-guided to the spherical outer surface of the inner ring are provided. In a cage of a fixed type constant velocity universal joint in which a plurality of pockets for accommodating torque transmitting balls for transmitting a rotational torque between the outer ring and the inner ring in the circumferential direction of the cylindrical portion having are formed at equal intervals, Of the pair of side surfaces facing each other in the cage axial direction, the side surface on the outer ring opening side is the surface shaving before the heat treatment of the cage,
In addition, the side surface on the inner ring outer side was used as the surface of the cage that was cut after heat treatment, and the surface hardness was lower than the surface hardness on the side surface on the outer ring opening side.
【００１５】ここで、筒体部に形成された球形外面の中
心と球形内面の中心は同一位置に配置されたものであっ
てもよく、あるいは、筒体部の軸方向に間隔をおいて配
置されたものであってもよい。Here, the center of the spherical outer surface and the center of the spherical inner surface formed on the cylindrical body may be arranged at the same position, or they may be arranged at intervals in the axial direction of the cylindrical body. It may have been done.
【００１６】また、切削は、切りくずの発生する加工を
いい、ミーリングによる加工であってもよく、あるいは
砥石による研削であってもよい。Further, the cutting means a processing in which chips are generated, and may be processing by milling or grinding by a grindstone.
【００１７】上記のように、ポケットの外輪奥側の側面
を熱処理後、切削された面とすることにより、窓幅公差
の小さい寸法精度の高いポケットを得ることができる。As described above, the side surface of the pocket on the inner side of the outer ring is heat-treated and then cut to obtain a pocket having a small window width tolerance and high dimensional accuracy.
【００１８】このため、ケージのポケットに対するトル
ク伝達ボールの組込みに際して、ポケットとトルク伝達
ボールのマッチング作業を不要とすることができ、トル
ク伝達ボールの組込み作業性の向上を図ることができ
る。Therefore, when assembling the torque transmitting ball into the pocket of the cage, the matching work between the pocket and the torque transmitting ball can be eliminated, and the workability of assembling the torque transmitting ball can be improved.
【００１９】ここで、ポケットのケージ軸方向で対向す
る一対の側面のそれぞれを、熱処理後、切削された面と
することによってポケットの寸法精度をより向上させる
ことができるが、この場合、ポケットの外輪開口側の側
面に必要な表面硬さを得るために、切削による取代分を
考慮して、予め熱処理深さを深く入れておく必要が生じ
る。Here, the dimensional accuracy of the pocket can be further improved by making each of the pair of side surfaces facing each other in the cage axial direction of the pocket a heat-treated surface, and in this case, the pocket dimensional accuracy can be further improved. In order to obtain the required surface hardness on the side surface on the outer ring opening side, it is necessary to preliminarily increase the heat treatment depth in consideration of the machining allowance.
【００２０】このとき、隣接するポケット間に形成され
た柱部にも熱処理深さが深く入るため、柱部のコア部が
減り、柱部の靱性が低下することになるので、ケージの
強度を確保することができなくなる。At this time, since the heat treatment depth deeply enters the pillar portion formed between the adjacent pockets, the core portion of the pillar portion is reduced and the toughness of the pillar portion is lowered, so that the strength of the cage is improved. It becomes impossible to secure.
【００２１】この発明に係るケージにおいては、ポケッ
トの外輪奥側の側面のみを熱処理後、切削された面とす
るため、柱部における熱処理深さは従来と同様であり、
従来品とほぼ同等の強度を有するケージを提供すること
ができる。In the cage according to the present invention, since only the side surface of the pocket on the inner side of the outer ring is heat-treated and then made into a cut surface, the heat-treatment depth of the column portion is the same as the conventional one.
It is possible to provide a cage having substantially the same strength as a conventional product.
【００２２】この発明に係るケージの製造方法において
は、筒状のケージ素形材の外面および内面を旋削して球
形外面および球形内面を形成する旋削工程と、前記ケー
ジ素形材を打抜きプレスして複数のポケットを形成する
打抜きプレス工程と、前記ポケットのケージ素形材の軸
方向で対向する一対の側面のうち少なくとも一方をシェ
ービングして、その一方の側面とポケット中心までの寸
法を規定の寸法に仕上げる工程と、ケージ素形材を浸炭
焼入れする熱処理工程と、熱処理後のケージ素形材の球
形外面および球形内面を研削する研削工程と、前記ポケ
ットの他方の側面を切削して、その他方の側面の表面硬
さを一方の側面の表面硬さより低くすると共に、その他
方の側面とポケット中心までの寸法を規定の寸法に仕上
げる切削工程とから成る構成を採用したのである。In the method of manufacturing a cage according to the present invention, a turning step of turning the outer surface and the inner surface of a cylindrical cage blank to form a spherical outer surface and a spherical inner surface, and punching and pressing the cage blank. Punching press step of forming a plurality of pockets by shaving, and shaving at least one of a pair of side faces of the pocket that face each other in the axial direction of the cage material, and define a dimension from the one side face to the pocket center. Steps of finishing to dimensions, heat treatment step of carburizing and quenching cage blanks, grinding step of grinding the spherical outer surface and spherical inner surface of cage blanks after heat treatment, cutting the other side surface of the pocket, and other A cutting process that lowers the surface hardness of one side to the surface hardness of one side, and finishes the dimension from the other side to the center of the pocket to the specified dimension. Than it is adopted the configuration made.
【００２３】上記のような製造方法を採用することによ
り、ポケットの寸法精度が高いケージを形成することが
できる。By adopting the manufacturing method as described above, it is possible to form a cage having high pocket dimensional accuracy.
【００２４】さらに、この発明に係る固定式等速自在継
手においては、外輪の球形内面と内輪の球形外面に複数
の曲線状トラック溝を形成し、外輪のトラック溝の曲率
中心と内輪のトラック溝の曲率中心を継手の角度中心よ
り左右に等距離オフセットし、継手径方向で対向するト
ラック溝間にトルク伝達ボールを組込み、各トルク伝達
ボールを外輪の球形内面に接触案内される球形外面およ
び内輪の球形外面で接触案内される球形内面を有するケ
ージのポケット内に収容し、前記各ポケットのケージ軸
方向で対向する一対の側面のうち、外輪開口側の側面を
ケージの熱処理前にシェービングされた面とし、かつ外
輪奥側の側面をケージの熱処理後切削された面として、
その表面硬さを外輪開口側の側面の表面硬さより低くし
た構成を採用したのである。Further, in the fixed type constant velocity universal joint according to the present invention, a plurality of curved track grooves are formed on the spherical inner surface of the outer ring and the spherical outer surface of the inner ring, and the center of curvature of the track groove of the outer ring and the track groove of the inner ring are formed. The center of curvature of the joint is offset equidistantly from the angle center of the joint to the left and right, and torque transmission balls are installed between the track grooves that face each other in the radial direction of the joint. It is housed in a pocket of a cage having a spherical inner surface that is contact-guided by the spherical outer surface, and of the pair of side surfaces facing each other in the cage axial direction of each pocket, the outer ring opening side surface is shaving before heat treatment of the cage. As the surface, and the side surface on the back side of the outer ring as the surface cut after heat treatment of the cage,
The surface hardness is lower than the surface hardness of the side surface on the outer ring opening side.
【００２５】上記のように構成された固定式等速自在継
手においては、ケージに形成されたポケットの寸法精度
が高く、ケージおよびトルク伝達ボールをランク分けし
てからマッチングするという作業を不要とすることがで
きるので、固定式等速自在継手の組立て性を向上させる
ことができる。In the fixed type constant velocity universal joint configured as described above, the dimensional accuracy of the pockets formed in the cage is high, and the work of matching the cage and the torque transmission balls after ranking them is unnecessary. Therefore, the assemblability of the fixed type constant velocity universal joint can be improved.
【００２６】[0026]
【発明の実施の形態】以下、この発明の実施の形態を図
１乃至図４に基づいて説明する。図１に示すように、等
速自在継手は、外輪１、内輪１１、トルク伝達ボール２
１およびケージ３１とから成る。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the constant velocity universal joint includes an outer ring 1, an inner ring 11, and a torque transmission ball 2.
1 and a cage 31.
【００２７】外輪１は球形内面２を有し、その球形内面
２に８つの曲線状のボール溝３が周方向に等間隔に形成
されている。The outer ring 1 has a spherical inner surface 2, and eight curved ball grooves 3 are formed on the spherical inner surface 2 at equal intervals in the circumferential direction.
【００２８】内輪１１は球形外面１２を有し、その球形
外面１２に外輪１に形成されたボール溝３と同数の曲線
状ボール溝１３が周方向に等間隔に形成されている。The inner ring 11 has a spherical outer surface 12, and the same number of curved ball grooves 13 as the ball grooves 3 formed in the outer ring 1 are formed on the spherical outer surface 12 at equal intervals in the circumferential direction.
【００２９】外輪１に形成されたボール溝３の曲率中心
Ａ1 と内輪１１に設けられたボール溝１３の曲率中心Ａ
2 は継手の角度中心Ｏ0 に対して左右に等距離オフセッ
トされている。The center of curvature A 1 of the ball groove 3 formed in the outer ring 1 and the center of curvature A of the ball groove 13 formed in the inner ring 11
2 is offset equidistantly left and right with respect to the angular center O 0 of the joint.
【００３０】トルク伝達ボール２１は、外輪１のボール
溝３と内輪１１のボール溝１３間に組込まれて外輪１と
内輪１１の相互間で回転トルクを伝達する。The torque transmitting ball 21 is incorporated between the ball groove 3 of the outer ring 1 and the ball groove 13 of the inner ring 11 to transmit the rotational torque between the outer ring 1 and the inner ring 11.
【００３１】図２はケージ３１を示す。このケージ３１
は筒体部３２の一方の端部には、内輪１１の外径とほぼ
等しいインロー３３を形成している。また、筒体部３２
に外輪１の球面内面２に接触案内される球形外面３４お
よび内輪１１の球形外面１２に接触案内される球形内面
３５を形成している。FIG. 2 shows the cage 31. This cage 31
A spigot 33 having a diameter substantially equal to the outer diameter of the inner ring 11 is formed at one end of the cylindrical body 32. In addition, the cylindrical body 32
A spherical outer surface 34 which is guided to contact the spherical inner surface 2 of the outer ring 1 and a spherical inner surface 35 which is guided to contact the spherical outer surface 12 of the inner ring 11 are formed.
【００３２】球形外面３４の曲率中心Ｂ1 と球形内面３
５の曲率中心Ｂ2 は軸方向に間隔をおいた配置とされ、
前記ケージ３１を外輪１と内輪１１間に配置した組込み
状態で、これらの曲率中心Ｂ1 およびＢ2 は継手の角度
中心Ｏ0 に対して左右に等距離オフセットされる。The center of curvature B 1 of the spherical outer surface 34 and the spherical inner surface 3
The centers of curvature B 2 of 5 are arranged at intervals in the axial direction,
In the assembled state in which the cage 31 is arranged between the outer ring 1 and the inner ring 11, these centers of curvature B 1 and B 2 are offset laterally equidistant from the angular center O 0 of the joint.
【００３３】ここで、球形外面３４の曲率中心Ｂ1 およ
び球形内面３５の曲率中心Ｂ2 は、外輪１に形成された
ボール溝３の曲率中心Ａ1 および内輪１１に設けられた
ボール溝１３の曲率中心Ａ2 と同一位置に配置されるも
のであってもよく、これらの曲率中心Ａ1 、Ａ2 より外
側に位置する配置であってもよい。The center of curvature B 1 of the spherical outer surface 34 and the center of curvature B 2 of the spherical inner surface 35 are the center of curvature A 1 of the ball groove 3 formed in the outer ring 1 and the ball center 13 of the ball groove 13 formed in the inner ring 11. It may be arranged at the same position as the center of curvature A 2 , or may be arranged outside the centers of curvature A 1 and A 2 .
【００３４】図３に示すように、前記ケージ３１にはト
ルク伝達ボール２１を収容するポケット３６が形成され
ている。ポケット３６のケージ軸方向で対向する一対の
側面３７ａ、３７ｂは平行面とされ、その一対の側面３
７ａ、３７ｂの間隔（ポケット幅）はトルク伝達ボール
２１の球径とほぼ等しくなっている。As shown in FIG. 3, the cage 31 is formed with pockets 36 for accommodating the torque transmission balls 21. A pair of side surfaces 37a and 37b of the pocket 36 that face each other in the cage axial direction are parallel surfaces, and the pair of side surfaces 3a and 37b are parallel to each other.
The distance (pocket width) between 7a and 37b is substantially equal to the diameter of the torque transmission ball 21.
【００３５】上記の構成から成る等速自在継手におい
て、外輪１と内輪１１とが作動角をとってトルクを伝達
するとき、トルク伝達ボール２１はケージ３１に形成さ
れたポケット３６の側面３７ａ、３７ｂを転走面として
接触移動する。このため、上記側面３７ａ、３７ｂには
耐摩耗性が要求される。In the constant velocity universal joint having the above structure, when the outer ring 1 and the inner ring 11 form an operating angle and transmit torque, the torque transmitting balls 21 are the side faces 37a, 37b of the pockets 36 formed in the cage 31. Touch and move with the rolling surface. Therefore, the side surfaces 37a and 37b are required to have wear resistance.
【００３６】側面３７ａ、３７ｂの耐摩耗性は浸炭焼入
れ等の熱処理を施すことによって向上させることができ
るが、単に熱処理するだけであると、ポケット３６の寸
法精度が悪くなり、トルク伝達ボール２１の組込みに際
し、ポケット３６とトルク伝達ボール２１のマッチング
作業を必要とし、等速自在継手の組立てに非常に手間が
かかることになる。The wear resistance of the side surfaces 37a and 37b can be improved by performing heat treatment such as carburizing and quenching. However, if the heat treatment is simply performed, the dimensional accuracy of the pocket 36 is deteriorated, and the torque transmitting ball 21 is damaged. At the time of assembling, matching work of the pocket 36 and the torque transmission ball 21 is required, and it takes much time and effort to assemble the constant velocity universal joint.
【００３７】そこで、熱処理後において、ポケット３６
の一対の側面３７ａ、３７ｂを切削することによってポ
ケット３６の寸法精度を高めることができるが、切削に
より一対の側面３７ａ、３７ｂの表面硬さが低下するた
め、切削による取代分を考慮して熱処理深さを深く入れ
ておく必要が生じる。このとき、ポケット３６間に形成
された柱部３８のコア部が減り、柱部３８の靱性が低下
してケージ３１の強度が低下する問題が発生する。Therefore, after the heat treatment, the pocket 36
Although the dimensional accuracy of the pocket 36 can be improved by cutting the pair of side surfaces 37a, 37b, the surface hardness of the pair of side surfaces 37a, 37b is reduced by the cutting. It is necessary to keep the depth deep. At this time, the core portion of the pillar portion 38 formed between the pockets 36 is reduced, the toughness of the pillar portion 38 is lowered, and the strength of the cage 31 is lowered.
【００３８】ここで、等速自在継手が作動角をとってト
ルクを伝達するとき、トルク伝達ボール２１には、外輪
１の開口側に向けて押圧力が付与されるため、ポケット
３６のケージ軸方向で対向する一対の側面３７ａ、３７
ｂとトルク伝達ボール２１との接触圧は外輪開口側の側
面３７ａで高く、外輪奥側の側面３７ｂで小さい。Here, when the constant velocity universal joint takes an operating angle to transmit torque, a pressing force is applied to the torque transmitting ball 21 toward the opening side of the outer ring 1, so that the cage shaft of the pocket 36 is provided. Pair of side surfaces 37a, 37 facing each other in the direction
The contact pressure between b and the torque transmission ball 21 is high on the side surface 37a on the outer ring opening side and small on the side surface 37b on the inner side of the outer ring.
【００３９】このため、外輪奥側の側面３７ｂの熱処理
深さを外輪開口側の側面３７ａの熱処理深さより浅くし
ても問題とはならない。Therefore, there is no problem even if the heat treatment depth of the side surface 37b on the inner side of the outer ring is shallower than the heat treatment depth of the side surface 37a on the outer ring opening side.
【００４０】そこで、この実施形態では、図３（Ｉ）、
（II）に示すように、ＳＣｒ４１５あるいはＳＣＭ４１
５等の低炭素の肌焼き鋼（硬度ＨＲＣ２５〜４５）を素
材とするケージ３１にポケット３６を形成し、そのポケ
ット３６の一対の側面３７ａ、３７ｂにシェービング
（ブローチ加工）を施し、外輪開口側の側面３７ａとポ
ケット中心Ｏ1 までの寸法ｄを規定の寸法に仕上げたの
ち、ケージ３１に浸炭焼入れによる熱処理を施して硬化
層３９を形成し、外輪奥側の側面３７ｂを切削してポケ
ット中心Ｏ1 までの寸法ｄを規定の寸法に仕上げるよう
にしている。Therefore, in this embodiment, as shown in FIG.
As shown in (II), SCr415 or SCM41
A pocket 36 is formed in a cage 31 made of a low carbon case hardening steel (hardness HRC25 to 45) such as 5, and a pair of side surfaces 37a and 37b of the pocket 36 is shaving (broached) to form an outer ring opening side. After the dimension d between the side surface 37a and the center O 1 of the pocket is set to a predetermined dimension, the cage 31 is heat treated by carburizing and quenching to form a hardened layer 39, and the side surface 37b on the inner ring outer side is cut to form the center of the pocket. The dimension d up to O 1 is finished to a prescribed dimension.
【００４１】ここで、規定の寸法とはトルク伝達ボール
２１の球径のほぼ１／２の寸法をいう。また、切削は、
切りくずを発生する加工をいい、ミーリングによって切
削したものであってもよく、砥石によって研削したもの
であってもよい。Here, the prescribed size means a size which is approximately 1/2 of the spherical diameter of the torque transmission ball 21. Also, the cutting is
This refers to a process of generating chips, which may be cut by milling or ground by a grindstone.
【００４２】上記のように、ケージ３１の熱処理後に、
ポケット３６の外輪奥側の側面３７ｂを切削することに
より、一対の側面のそれぞれをシェービング加工したの
ち熱処理を施すようにしたポケットに比較して窓幅寸法
の精度が高く、トルク伝達ボール２１の組込みに際し
て、ポケット３６とトルク伝達ボール２１のマッチング
作業を不要とし、組込みの作業性を向上させることがで
きる。As described above, after heat treatment of the cage 31,
By cutting the side surface 37b of the pocket 36 on the inner side of the outer ring, the precision of the window width is higher than that of the pocket in which each of the pair of side surfaces is shaving and then heat-treated, and the torque transmission ball 21 is incorporated. At this time, the matching work of the pocket 36 and the torque transmission ball 21 is not necessary, and the workability of assembling can be improved.
【００４３】図４は上記の構成から成るケージ３１の製
造方法を示し、下記の工程から成る。
第１工程；ＳＣｒ４１５あるいはＳＣＭ４１５から成る
パイプ材を切断して図４（Ｉ）に示す筒状体Ｐ1 を形成
する。
第２工程；筒状体Ｐ1 を軸方向両端からプレスして図４
（II）に示すように、外周面および内周面が円弧状にわ
ん曲するケージ素形材Ｐ2 を形成する。
第３工程；ケージ素形材Ｐ2 の外周面および内周面を旋
削して、図４（III ）に示すように球形外面３４および
球形内面３５を形成する。
第４工程；ケージ素形材Ｐ2 を打抜きプレスして、図４
（IV）に示すように複数のポケット３６を形成する。
第５工程；ポケット３６の形成後、そのポケット３６の
一対の側面３７ａ、３７ｂをシェービングし、図１に示
す外輪１に対するケージ３１の組込み状態で外輪１開口
側の側面３７ａとポケット３６の中心Ｏ1 までの寸法ｄ
を規定の寸法（トルク伝達ボール２１の球径の１／２の
寸法）に仕上げる。
第６工程；ポケット３６を有するケージ素形材Ｐ2 を浸
炭焼入れして、図４（Ｖ）の点線で示すように、浸炭深
さ０．４５〜１．００ミリ、表面硬さＨＲＣ５８〜６３
の硬化層３９を形成する。
第７工程；焼入れ後のケージ素形材Ｐ2 の球形外面３４
および球形内面３５を研削して、表面仕上げする（図４
（Ｖ）参照）。
第８工程；ポケット３６の外輪奥側の側面３７ｂを切削
して、その側面３７ｂとポケット中心Ｏ1 までの寸法ｄ
を規定の寸法（トルク伝達ボール２１の球径の１／２の
寸法）に仕上げる。図４（VII ）は形成されたケージ３
１を示す。FIG. 4 shows a method of manufacturing the cage 31 having the above structure, which comprises the following steps. First step: A pipe material made of SCr415 or SCM415 is cut to form a tubular body P 1 shown in FIG. 4 (I). Second step: the cylindrical body P 1 is pressed from both ends in the axial direction, and the state shown in FIG.
As shown in (II), a cage blank P 2 whose outer peripheral surface and inner peripheral surface are curved in an arc is formed. Third step: The outer peripheral surface and the inner peripheral surface of the cage blank P 2 are turned to form a spherical outer surface 34 and a spherical inner surface 35 as shown in FIG. 4 (III). Step 4: a cage formed and fabricated material P 2 by stamping press, 4
A plurality of pockets 36 are formed as shown in (IV). Fifth step: After formation of the pocket 36, the pair of side surfaces 37a and 37b of the pocket 36 is shaving, and the side surface 37a on the opening side of the outer ring 1 and the center O of the pocket 36 in the state where the cage 31 is assembled to the outer ring 1 shown in FIG. Dimension d up to 1
To a specified size (half the diameter of the torque transmission ball 21). Sixth step: The cage blank P 2 having the pocket 36 is carburized and quenched, and as shown by the dotted line in FIG. 4 (V), carburized depth 0.45 to 1.00 mm, surface hardness HRC 58 to 63.
The hardened layer 39 is formed. 7th step; spherical outer surface 34 of cage blank P 2 after quenching
And the spherical inner surface 35 is ground to finish the surface (FIG. 4).
(See (V)). Eighth step; the side surface 37b of the pocket 36 on the inner side of the outer ring is cut to obtain a dimension d between the side surface 37b and the pocket center O 1.
To a specified size (half the diameter of the torque transmission ball 21). Figure 4 (VII) shows the cage 3 formed
1 is shown.
【００４４】上記のケージ製造方法によれば、ポケット
３６の寸法精度の高いケージ３１を得ることができる。
したがって、トルク伝達ボール２１の組込みに際し、ポ
ケット３６とトルク伝達ボール２１のマッチング作業を
不要とすることができる。According to the cage manufacturing method described above, the cage 31 with high dimensional accuracy of the pocket 36 can be obtained.
Therefore, when the torque transmission ball 21 is assembled, the matching work between the pocket 36 and the torque transmission ball 21 can be eliminated.
【００４５】図１に示す実施の形態では８個のポケット
３６を有し、球形外面３４の曲率中心Ｂ1 と球形４内面
３５の曲率中心Ｂ2 が軸方向に間隔をおいて形成された
ケージ３１およびそのケージ３１が組込まれた等速自在
継手を示したが、ケージおよび等速自在継手はこれに限
定されるものではない。In the embodiment shown in FIG. 1, the cage has eight pockets 36, and the center of curvature B 1 of the spherical outer surface 34 and the center of curvature B 2 of the inner surface 35 of the spherical 4 are formed at intervals in the axial direction. Although 31 and the constant velocity universal joint in which the cage 31 is incorporated are shown, the cage and the constant velocity universal joint are not limited thereto.
【００４６】例えば、従来の技術で述べた図５に示すケ
ージや等速自在継手であってもよい。図５に示す等速自
在継手ではボール数を６個としている。また、ケージ５
７に形成された球形外面５８の曲率中心と球形内面５９
に設けられた曲率中心を継手の角度中心上に配置してい
る。For example, the cage or constant velocity universal joint shown in FIG. 5 described in the prior art may be used. The constant velocity universal joint shown in FIG. 5 has six balls. Also, cage 5
7, the center of curvature of the spherical outer surface 58 and the spherical inner surface 59
The center of curvature of the joint is arranged on the angular center of the joint.
【００４７】[0047]
【発明の効果】以上のように、この発明によれば、ケー
ジに形成されたポケットの外輪奥側の側面を熱処理後に
切削して仕上げるようにしたので、寸法精度の高いポケ
ットを得ることができ、トルク伝達ボールの組込みに際
し、そのトルク伝達ボールとポケットのマッチング作業
を不要とすることができ、等速自在継手の組立て性を大
幅に向上させることができる。As described above, according to the present invention, the side surface of the pocket formed in the cage on the inner side of the outer ring is heat-treated and then cut, so that a pocket with high dimensional accuracy can be obtained. When assembling the torque transmission ball, the matching work of the torque transmission ball and the pocket can be eliminated, and the assemblability of the constant velocity universal joint can be greatly improved.
【００４８】また、ポケットの一対の側面を熱処理後に
おいて切削する場合には、その取代分を考慮して熱処理
深さを深くする必要があり、その熱処理によって柱部の
靱性が低下するが、ポケットの外輪奥側の側面のみを熱
処理後に切削する構成であるため、柱部の靱性の低下が
なく、強度、耐久性において良好なケージを得ることが
できる。When the pair of side surfaces of the pocket are cut after the heat treatment, it is necessary to make the heat treatment depth deeper in consideration of the machining allowance, and the heat treatment lowers the toughness of the column portion. Since only the side surface on the inner side of the outer ring is cut after heat treatment, the toughness of the column portion does not decrease, and a cage having good strength and durability can be obtained.
【図１】この発明に係る等速自在継手の一部切欠正面図FIG. 1 is a partially cutaway front view of a constant velocity universal joint according to the present invention.
【図２】図１に示す等速自在継手のケージを示す断面図FIG. 2 is a sectional view showing a cage of the constant velocity universal joint shown in FIG.
【図３】（Ｉ）は図２に示すケージの一部分を示す平面
図、（II）は（Ｉ）のイ−イ線の断面図3 (I) is a plan view showing a part of the cage shown in FIG. 2, and (II) is a cross-sectional view taken along the line ii in FIG. 3 (I).
【図４】ケージの製造工程を示す図FIG. 4 is a diagram showing a cage manufacturing process.
【図５】従来の等速自在継手を示す一部切欠正面図FIG. 5 is a partially cutaway front view showing a conventional constant velocity universal joint.
【図６】従来の等速自在継手のケージの製造工程を示す
図FIG. 6 is a view showing a manufacturing process of a cage of a conventional constant velocity universal joint.
【図７】（Ｉ）は図５に示すケージの一部分を示す平面
図、（II）は（Ｉ）の断面図7 (I) is a plan view showing a part of the cage shown in FIG. 5, and (II) is a cross-sectional view of (I).
１ 外輪 ２ 球形内面 ３ ボール溝 １１ 内輪 １２ 球形外面 １３ ボール溝 ２１ トルク伝達ボール ３１ ケージ ３２ 筒体部 ３４ 球形外面 ３５ 球形内面 ３６ ポケット ３７ａ、３７ｂ 側面 1 outer ring 2 spherical inner surface 3 ball grooves 11 inner ring 12 spherical outer surface 13 ball groove 21 Torque transmission ball 31 cage 32 barrel 34 spherical outer surface 35 spherical inner surface 36 pockets 37a, 37b Side surface
Claims (6)
面および内輪の球形外面に接触案内される球形内面を有
する筒体部の周方向に前記外輪と内輪の相互間で回転ト
ルクを伝達するトルク伝達ボールが収容される複数のポ
ケットを等間隔に形成した固定式等速自在継手のケージ
において、前記ポケットのケージ軸方向で対向する一対
の側面のうち、外輪開口側の側面をケージの熱処理前に
シェービングされた面とし、かつ外輪奥側の側面をケー
ジの熱処理後切削された面として、その表面硬さを外輪
開口側の側面の表面硬さより低くしたことを特徴とする
固定式等速自在継手のケージ。1. A rotating torque is transmitted between the outer ring and the inner ring in the circumferential direction of a cylindrical portion having a spherical outer surface that is contact-guided to the spherical inner surface of the outer ring and a spherical inner surface that is contact-guided to the spherical outer surface of the inner ring. In a cage of a fixed type constant velocity universal joint in which a plurality of pockets for accommodating torque transmitting balls are formed at equal intervals, of the pair of side surfaces facing each other in the cage axial direction of the pocket, the side surface on the outer ring opening side is heat treated for the cage. A fixed type constant velocity, characterized in that the surface hardness is lower than the surface hardness of the side surface on the outer ring opening side, and the side surface on the back side of the outer ring is the surface that has been shaved before and the side surface that has been cut after heat treatment of the cage. Universal joint cage.
の中心が筒体部の軸方向に間隔をおいた配置とされてい
ることを特徴とする請求項１に記載の固定式等速自在継
手のケージ。2. The fixed type or the like according to claim 1, wherein the center of the spherical outer surface and the center of the spherical inner surface of the tubular portion are arranged with a space in the axial direction of the tubular portion. Cage with quick universal joint.
から成ることを特徴とする請求項１又は２に記載の固定
式等速自在継手のケージ。3. The cage for a fixed type constant velocity universal joint according to claim 1, wherein the tubular body is made of case-hardened steel that has been carburized and quenched.
８個であることを特徴とする請求項１乃至３のいずれか
に記載の固定式等速自在継手のケージ。4. The cage of the fixed type constant velocity universal joint according to claim 1, wherein the number of pockets formed in the tubular portion is eight.
旋削して球形外面および球形内面を形成する旋削工程
と、前記ケージ素形材を打抜きプレスして複数のポケッ
トを形成する打抜きプレス工程と、前記ポケットのケー
ジ素形材の軸方向で対向する一対の側面のうち少なくと
も一方をシェービングして、その一方の側面とポケット
中心までの寸法を規定の寸法に仕上げる工程と、ケージ
素形材を浸炭焼入れする熱処理工程と、熱処理後のケー
ジ素形材の球形外面および球形内面を研削する研削工程
と、前記ポケットの他方の側面を切削して、その他方の
側面の表面硬さを一方の側面の表面硬さより低くすると
共に、その他方の側面とポケット中心までの寸法を規定
の寸法に仕上げる切削工程とから成る固定式等速自在継
手におけるケージの製造方法。5. A turning step of turning an outer surface and an inner surface of a tubular cage blank to form a spherical outer surface and a spherical inner surface, and a punching press for punching the cage blank to form a plurality of pockets. And a step of shaving at least one of a pair of side surfaces of the pocket cage material facing each other in the axial direction of the pocket, and finishing the dimension between the one side surface and the center of the pocket to a prescribed dimension. Heat treatment step of carburizing and quenching the material, grinding step of grinding the spherical outer surface and spherical inner surface of the cage raw material after the heat treatment, cutting the other side surface of the pocket, and making the surface hardness of the other side one Of the cage in a fixed type constant velocity universal joint, which is made lower than the surface hardness of the side surface of the Build method.
の曲線状トラック溝を形成し、外輪のトラック溝の曲率
中心と内輪のトラック溝の曲率中心を継手の角度中心よ
り左右に等距離オフセットし、継手径方向で対向するト
ラック溝間にトルク伝達ボールを組込み、各トルク伝達
ボールを外輪の球形内面に接触案内される球形外面およ
び内輪の球形外面で案内される球形内面を有するケージ
のポケット内に収容し、前記各ポケットのケージ軸方向
で対向する一対の側面のうち、外輪開口側の側面をケー
ジの熱処理前にシェービングされた面とし、かつ外輪奥
側の側面をケージの熱処理後切削された面として、その
表面硬さを外輪開口側の側面の表面硬さより低くした固
定式等速自在継手。6. A plurality of curved track grooves are formed on the spherical inner surface of the outer ring and the spherical outer surface of the inner ring, and the center of curvature of the track groove of the outer ring and the center of curvature of the track groove of the inner ring are equidistant to the left and right from the angular center of the joint. A cage that has a spherical outer surface that is offset and that incorporates torque transmission balls between the track grooves that are opposed in the radial direction of the joint, and that guides each torque transmission ball into contact with the spherical inner surface of the outer ring and a spherical inner surface that is guided by the spherical outer surface of the inner ring. Of the pair of side faces that are accommodated in the pocket and face each other in the cage axial direction of each pocket, the side face on the outer ring opening side is the shaving face before heat treatment of the cage, and the side face on the inner ring back side of the cage is after heat treatment of the cage. A fixed type constant velocity universal joint whose surface hardness is lower than that of the side surface on the outer ring opening side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001236621A JP4651233B2 (en) | 2001-08-03 | 2001-08-03 | Cage of fixed type constant velocity universal joint, manufacturing method thereof, and fixed type constant velocity universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001236621A JP4651233B2 (en) | 2001-08-03 | 2001-08-03 | Cage of fixed type constant velocity universal joint, manufacturing method thereof, and fixed type constant velocity universal joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003049861A true JP2003049861A (en) | 2003-02-21 |
| JP4651233B2 JP4651233B2 (en) | 2011-03-16 |
Family
ID=19067848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001236621A Expired - Fee Related JP4651233B2 (en) | 2001-08-03 | 2001-08-03 | Cage of fixed type constant velocity universal joint, manufacturing method thereof, and fixed type constant velocity universal joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4651233B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007097156A1 (en) * | 2006-02-22 | 2007-08-30 | Ntn Corporation | Constant velocity universal joint and its cage |
| WO2007148487A1 (en) * | 2006-06-23 | 2007-12-27 | Ntn Corporation | Constant velocity universal joint, and drive shaft and drive wheel bearing using the same |
| JP2008002624A (en) * | 2006-06-23 | 2008-01-10 | Ntn Corp | Constant velocity universal joint, drive shaft using it, and bearing unit for drive wheel |
| JP2008240904A (en) * | 2007-03-27 | 2008-10-09 | Ntn Corp | Cage for constant velocity universal joint and manufacturing method thereof |
| JP2008256022A (en) * | 2007-04-02 | 2008-10-23 | Ntn Corp | Constant velocity universal joint |
| KR101677167B1 (en) * | 2015-08-31 | 2016-11-17 | 이규환 | Manufacturing method of ball cage for car constant velocity joint |
| CN115229452A (en) * | 2022-09-23 | 2022-10-25 | 万向钱潮股份公司 | Constant velocity universal joint cage processing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6212021A (en) * | 1985-07-10 | 1987-01-21 | 株式会社明電舎 | Electrode for vacuum interrupter |
| JP2001153148A (en) * | 1999-11-30 | 2001-06-08 | Ntn Corp | Cage of fixed constant velocity universal joint and method for manufacturing thereof and fixed constant velocity universal joint |
-
2001
- 2001-08-03 JP JP2001236621A patent/JP4651233B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6212021A (en) * | 1985-07-10 | 1987-01-21 | 株式会社明電舎 | Electrode for vacuum interrupter |
| JP2001153148A (en) * | 1999-11-30 | 2001-06-08 | Ntn Corp | Cage of fixed constant velocity universal joint and method for manufacturing thereof and fixed constant velocity universal joint |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007097156A1 (en) * | 2006-02-22 | 2007-08-30 | Ntn Corporation | Constant velocity universal joint and its cage |
| WO2007148487A1 (en) * | 2006-06-23 | 2007-12-27 | Ntn Corporation | Constant velocity universal joint, and drive shaft and drive wheel bearing using the same |
| JP2008002624A (en) * | 2006-06-23 | 2008-01-10 | Ntn Corp | Constant velocity universal joint, drive shaft using it, and bearing unit for drive wheel |
| JP2008240904A (en) * | 2007-03-27 | 2008-10-09 | Ntn Corp | Cage for constant velocity universal joint and manufacturing method thereof |
| JP2008256022A (en) * | 2007-04-02 | 2008-10-23 | Ntn Corp | Constant velocity universal joint |
| KR101677167B1 (en) * | 2015-08-31 | 2016-11-17 | 이규환 | Manufacturing method of ball cage for car constant velocity joint |
| CN115229452A (en) * | 2022-09-23 | 2022-10-25 | 万向钱潮股份公司 | Constant velocity universal joint cage processing method |
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| Publication number | Publication date |
|---|---|
| JP4651233B2 (en) | 2011-03-16 |
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