JPH0740734Y2 - bearing - Google Patents

bearing

Info

Publication number
JPH0740734Y2
JPH0740734Y2 JP1989058176U JP5817689U JPH0740734Y2 JP H0740734 Y2 JPH0740734 Y2 JP H0740734Y2 JP 1989058176 U JP1989058176 U JP 1989058176U JP 5817689 U JP5817689 U JP 5817689U JP H0740734 Y2 JPH0740734 Y2 JP H0740734Y2
Authority
JP
Japan
Prior art keywords
retainer
outer ring
ball
inner ring
opening
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.)
Expired - Lifetime
Application number
JP1989058176U
Other languages
Japanese (ja)
Other versions
JPH02150412U (en
Inventor
義人 大和田
Original Assignee
有限会社大坊製作所
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 有限会社大坊製作所 filed Critical 有限会社大坊製作所
Priority to JP1989058176U priority Critical patent/JPH0740734Y2/en
Publication of JPH02150412U publication Critical patent/JPH02150412U/ja
Application granted granted Critical
Publication of JPH0740734Y2 publication Critical patent/JPH0740734Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/41—Ball cages comb-shaped
    • F16C33/418—Details of individual pockets, e.g. shape or ball retaining means
    • 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
    • F16C19/16—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 a single row of balls
    • F16C19/163—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 a single row of balls with angular contact
    • F16C19/166—Four-point-contact ball 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/3806—Details of interaction of cage and race, e.g. retention, centring
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/41—Ball cages comb-shaped
    • F16C33/412—Massive or moulded comb cages, e.g. snap ball cages
    • F16C33/414—Massive or moulded comb cages, e.g. snap ball cages formed as one-piece cages, i.e. monoblock comb cages
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Description

【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、ベアリングに関し、特に簡易な構成で回転体
を適切に支承し得るラジアル式のベアリングに関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a bearing, and more particularly to a radial type bearing capable of properly supporting a rotating body with a simple structure.

［従来の技術］ この種ベアリングのうち、特に簡易な構成で回転体を適
切に支承する必要があるものとして、例えば合成樹脂製
のものがある。樹脂ベアリングは塩酸や硝酸等に対する
耐薬品性に優れており、通常の金属製ベアリングでは使
用できないような環境下においても不都合なく使用でき
るメリットがある。しかし、樹脂でつくられるため加工
・組立精度に限界があり、従来から使用に際してある程
度のガタつきが許容されてきた。[Prior Art] Among bearings of this type, there is, for example, one made of synthetic resin, as a bearing that needs to properly support a rotating body with a particularly simple structure. Resin bearings have excellent chemical resistance to hydrochloric acid, nitric acid, etc., and have the advantage that they can be used without inconvenience even in environments where ordinary metal bearings cannot be used. However, since it is made of resin, there is a limit in processing and assembly accuracy, and rattling has been allowed to some extent in use.

その構成は一般的なベアリングと同様に、溝部を有した
外輪及び内輪の間にリテーナを介して複数のボールを転
動可能に保持させてなり、溝部は断面円弧状をなして設
けられることにより、ボールとの転接点が基本的に該円
弧面の底部に在るように設定されているのが通例であ
る。Like a general bearing, the structure is such that a plurality of balls are rotatably held between an outer ring and an inner ring having a groove through a retainer, and the groove has an arc-shaped cross section. It is customary to set the rolling contact point with the ball basically at the bottom of the arc surface.

また、組立のために外輪を半割に設けるとともに、リテ
ーナに先端部を切除して開口させてなる略円形の保持穴
を設けておき、一方の外輪片にリテーナを装着して各保
持穴内にボールを配設し、しかる後他方の外輪片を蓋着
接合することにより組立が完成されるようにしてあり、
リテーナは開口部間の爪部分において抜出を阻止される
ようになっている。In addition, the outer ring is provided in half for assembly, and the retainer is provided with a substantially circular holding hole formed by cutting the tip end portion and opening it. The ball is arranged, and then the other outer ring piece is lid-joined to complete the assembly.
The retainer is designed to be prevented from being pulled out at the claw portion between the openings.

［考案が解決しようとする課題］ しかし、このような構造は、１点支持であるためボール
との転接点が円弧面の底部から左右に振れ易く、ガタつ
きが大きいという欠点がある。また、樹脂でつくった場
合は特に前述したリテーナの爪部分がボールによって磨
耗し易くなり、この部分が欠損することによって開口部
が拡大するため、次第にボールが踊り出し、ついにはボ
ールに対する保持機能が失われてボールがばらけるとと
もに、リテーナが外輪と内輪の間からはみ出して回転不
良を起こすことになる。[Problems to be Solved by the Invention] However, since such a structure is supported at one point, there is a drawback that the rolling contact point with the ball easily swings to the left and right from the bottom of the arc surface and the backlash is large. In addition, when it is made of resin, the claw portion of the retainer described above is apt to be worn by the ball, and the opening is enlarged due to the lack of this portion, so that the ball gradually begins to dance, and finally the holding function for the ball is improved. The ball will be lost and the ball will come apart, and the retainer will stick out from between the outer ring and the inner ring, causing poor rotation.

本考案は、このような課題に着目してなされたものであ
って、簡易な構造によりこれらを有効に解消し、樹脂等
によってつくる場合にも回転の安定性と耐久性とを得る
ことができて、同時に加工・組立上の便宜も図り得るよ
うにしたベアリングを実現することを目的としている。The present invention has been made by paying attention to such problems, and it is possible to effectively solve these problems with a simple structure, and to obtain the stability and durability of rotation even when made of resin or the like. At the same time, it is intended to realize a bearing that can be conveniently processed and assembled.

［課題を解決するための手段］ 本考案は、かかる目的を達成するために、次のような構
造を採用したものである。[Means for Solving the Problem] The present invention adopts the following structure in order to achieve such an object.

すなわち、本考案に係るベアリングは、真円で剛性を有
し、かつ溝部を有した外輪及び内輪の間にリテーナを介
して複数のボールを転動可能に保持させてなるものにお
いて、前記リテーナを弾性変形可能に構成してその等角
位置にボール径よりも幅広な開口部を有した切欠状の保
持穴を形成するとともに、前記開口部に背向するリテー
ナの全周に亘って連続した部分と前記外輪及び前記内輪
の少なくともいずれか一方との間に係合部を設定し、各
開口部を通じて対応する保持穴内にボールを案内しつつ
前記外輪と内輪の間に軸方向から弾性変形を利用して挿
入したリテーナを配設位置で弾性復元させることによ
り、該リテーナが前記係合部により係止されて挿入側へ
の抜出を禁止され得るようにしたことを特徴とする。That is, in the bearing according to the present invention, a plurality of balls are rollably held via a retainer between an outer ring and an inner ring having a perfect circle and having a groove portion. A notch-shaped holding hole that is elastically deformable and has an opening wider than the diameter of the ball is formed at its equiangular position, and a portion that is continuous across the entire circumference of the retainer facing the opening. An engaging portion is set between the outer ring and the inner ring and at least one of the outer ring and the inner ring, and elastic deformation is utilized in the axial direction between the outer ring and the inner ring while guiding the ball into the corresponding holding hole through each opening. By elastically restoring the inserted retainer at the disposition position, the retainer is locked by the engaging portion so that the retainer can be prevented from being pulled out toward the insertion side.

［作用］ このような構造を有したベアリングであれば、リテーナ
の保持穴をボール径よりも幅広な開口部を有した切欠状
のものにしておき、該リテーナが係合部によって抜出を
禁止されるようにすれば、従来のように爪部の欠損によ
ってボールやリテーナ自身への保持機能が失われること
もなくなるため、耐久性と寿命が向上する。さらに、リ
テーナを弾性変形によって配設位置に挿入するようにし
ているので、外輪を半割にせずに済み、加工・組立も簡
単に行い得るものとなる。加えて、リテーナは、その全
周に亘って連続した部分と真円で剛性を有する外輪及び
内輪の少なくともいずれか一方との間に設定された係合
部により係止されているので、リテーナの全周に亘って
均等に摩擦力がかかり、突起等で係合している場合のよ
うに摩擦力が特定の部位に集中することがなくなる。そ
のため、使用時において、特定の部位のみが摩耗すると
いった偏性がなくなり、耐摩耗性が向上する。[Operation] With the bearing having such a structure, the retainer holding hole is formed in a notched shape having an opening wider than the ball diameter, and the retainer prohibits the retainer from being pulled out by the engaging portion. By doing so, the retaining function for the ball and the retainer itself is not lost due to the loss of the claw portion as in the conventional case, and thus the durability and the life are improved. Further, since the retainer is elastically deformed and inserted into the disposing position, the outer ring does not need to be halved, and the machining and assembly can be easily performed. In addition, the retainer is locked by the engaging portion that is set between the continuous portion over the entire circumference and at least one of the outer ring and the inner ring that are rigid in a perfect circle. The frictional force is evenly applied over the entire circumference, so that the frictional force is not concentrated on a specific portion as in the case where the frictional force is engaged by the protrusion or the like. Therefore, during use, the unevenness that only a specific part is worn is eliminated, and the wear resistance is improved.

［実施例］ 以下、本考案の一実施例を第１図〜第６図を参照して説
明する。[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

このベアリングは、樹脂製のもので、真円で剛性を有す
る外輪１と内輪２の間に６個のボール３が等角位置に転
動可能に配設されており、これらのボール３はリテーナ
４によって保持されている。外輪１、内輪２及びリテー
ナ４の素材としては例えばポリプロピレンが用いられ、
ボール３の素材としては例えばセラミックが用いられ
る。This bearing is made of resin, and six balls 3 are arranged between an outer ring 1 and an inner ring 2 having a perfect circular shape so as to be rollable in an equiangular position. These balls 3 are retained by a retainer. Held by 4. The outer ring 1, the inner ring 2 and the retainer 4 are made of, for example, polypropylene.
As a material of the ball 3, for example, ceramic is used.

具体的に説明すると、外輪１には第４図に示すように内
周1aに断面多角形状の溝部11が刻設してあり、この溝部
11の溝底部11a両側に形成した斜面の略中央部分がボー
ル３への転接点12、12として設定されている。一方、第
５図に示すように、内輪２の外周2aにも前記溝部11に対
応させて同一断面形状をなす溝部21が逆向きに刻設して
あり、同じく溝底部21aの両側に形成した斜面の略中央
部分がボール３への転接点22、22として設定されてい
る。そして、これら各転接点12、12、22、22間にボール
を転動させることによって外輪１と内輪２の相対回転を
可能ならしめ、軸受機能が発揮されるようにしている。
また、リテーナ４は弾性変形可能な程度に薄肉円筒状に
設けられたもので、第６図に示すように外周６箇所に等
角間隔毎にボール３を遊動させ得る大きさの保持穴41が
穿設してあり、該保持穴41の半円から先端部分を切欠い
てボール径φＡよりも幅広な開口部42（開口寸法ｄ）を
形成している。各開口部42間には、これにより図示のよ
うな爪部43が残されることになる。また、外輪１の開口
縁部内周には内方に向けて係止片13が突出しており、こ
れに対応してリテーナ４の外径φＢを外輪内径φＣより
も小さく係止片内周φＤよりも大きい寸法に設定してい
る。すなわち、外輪１の係止片13とリテーナ４の開口縁
部外周4aとが本考案の係合部５をなしている。More specifically, as shown in FIG. 4, the outer ring 1 is provided with a groove 11 having a polygonal cross section on the inner circumference 1a.
Substantially central portions of slopes formed on both sides of the groove bottom portion 11a of 11 are set as rolling contact points 12 to the ball 3. On the other hand, as shown in FIG. 5, the outer periphery 2a of the inner ring 2 is also provided with groove portions 21 having the same cross-section corresponding to the groove portions 11 and formed in opposite directions. The groove portions 21 are also formed on both sides of the groove bottom portion 21a. The substantially central portion of the slope is set as rolling contacts 22, 22 to the ball 3. Then, by rolling balls between these rolling contact points 12, 12, 22, 22, the relative rotation between the outer ring 1 and the inner ring 2 is made possible so that the bearing function is exhibited.
Further, the retainer 4 is provided in a thin-walled cylindrical shape so that it can be elastically deformed, and as shown in FIG. An opening 42 (opening dimension d) wider than the ball diameter φA is formed by cutting the tip portion from the semicircle of the holding hole 41. As a result, the claw portions 43 as shown are left between the openings 42. A locking piece 13 projects inward from the inner circumference of the opening edge of the outer ring 1, and correspondingly, the outer diameter φB of the retainer 4 is smaller than the inner diameter φC of the outer ring and smaller than the inner circumference φD of the locking piece. Is also set to a large size. That is, the locking piece 13 of the outer ring 1 and the opening edge outer periphery 4a of the retainer 4 form the engaging portion 5 of the present invention.

すなわち、開口部42に背向するリテーナ４の全周に亘っ
て連続する部分である開口縁部外周4aは、第３図及び第
６図から明らかなように、開口部42側の外周とは異な
り、リテーナ４の全周に亘って連続しているものであ
る。That is, as is clear from FIGS. 3 and 6, the opening edge outer circumference 4a, which is a portion that is continuous over the entire circumference of the retainer 4 facing the opening 42, is not the outer circumference on the opening 42 side. Differently, it is continuous over the entire circumference of the retainer 4.

このような構造により、先ず外輪１と内輪２との対向隙
間にボール３を配置し、その状態で該対向隙間に軸心ｍ
方向から先ずリテーナ４の爪部43を弾性変形させつつ挿
入する。次に、リテーナ４の各保持穴41内に対応する開
口部42を通じてボール３を案内しつつさらにリテーナ４
を圧入して行き、最後に開口縁部外周4aを係止片13より
も内部に通過させてリテーナ４全体の配設作業を完了す
る。これにより、該リテーナ４は弾性復元し、前記係合
部５において挿入側への抜出を禁止されることになる。
なお、この状態でのリテーナ４の取り外しは、人為的に
該リテーナに与える弾性変形によって以外は極めて難し
いものとなる。With such a structure, first, the balls 3 are arranged in the facing gap between the outer ring 1 and the inner ring 2, and in that state, the axial center m is placed in the facing gap.
First, the claw portion 43 of the retainer 4 is inserted while elastically deforming from the direction. Next, while guiding the ball 3 through the opening 42 corresponding to each holding hole 41 of the retainer 4, the retainer 4
Then, the outer periphery 4a of the opening edge portion is passed through the inside of the locking piece 13 to complete the work of disposing the retainer 4 as a whole. As a result, the retainer 4 is elastically restored, and the engaging portion 5 is prohibited from being pulled out toward the insertion side.
It should be noted that removal of the retainer 4 in this state becomes extremely difficult except by elastic deformation artificially applied to the retainer.

しかして、このような構造のベアリングであれば、各ボ
ール４が外輪１と内輪２とのそれぞれ２点において支持
されることになり、支持点が溝底部11a、21a上から左右
に振れることが殆どなくなる。これにより、ボール４は
溝に沿って安定して転動し得ることになり、回転時のガ
タつきを有効に低減することが可能になる。しかも、多
角形状の溝は円弧状の溝よりも加工がし易いメリットも
得られる。また、リテーナ４は係合部５に保持されるこ
とになり、爪部43はボール径Ａ以上に開口していて従来
のようにこの部位がリテーナ４を保持する役割を担って
いないので、特に摩耗が激しくなるようなこともない。
したがって、長期間に亘って使用してもボール３がばら
けるような不都合も来たさずに済み、耐久性と寿命を確
保することができる。さらに、リテーナ４を弾性変形に
よって配設位置に挿入するようにしているので、従来の
ように外輪１を半割にせずに済み、加工・組立上も好都
合なものとなる。With the bearing having such a structure, each ball 4 is supported at each of two points, that is, the outer ring 1 and the inner ring 2, and the supporting points can swing from the groove bottoms 11a and 21a to the left and right. It almost disappears. As a result, the ball 4 can roll stably along the groove, and it becomes possible to effectively reduce backlash during rotation. Moreover, the polygonal groove has an advantage that it is easier to process than the arc-shaped groove. Further, since the retainer 4 is held by the engaging portion 5, the claw portion 43 is opened to have a ball diameter A or more, and this portion does not play a role of holding the retainer 4 as in the conventional case. It will not wear out too much.
Therefore, even if the ball 3 is used for a long period of time, the inconvenience that the ball 3 is scattered does not occur, and durability and life can be secured. Further, since the retainer 4 is inserted into the disposing position by elastic deformation, it is not necessary to divide the outer ring 1 into half as in the conventional case, which is convenient in processing and assembling.

しかも、配設位置に挿入されたリテーナ４は、開口縁部
外周4aの全周が真円で剛性を有する外輪１の係止片13と
係合しているので、摩擦力が特定の部位に集中すること
なくその全周に均等にかかることになる。したがって、
リテーナ４がその外周部分の一部において片減りするこ
とがなくなり、耐摩耗性が向上する。Moreover, since the retainer 4 inserted in the disposing position is engaged with the locking piece 13 of the outer ring 1 having a perfect circular shape and the entire circumference of the outer periphery 4a of the opening edge portion, the frictional force is applied to a specific portion. It will be evenly distributed around the entire circumference without concentration. Therefore,
The retainer 4 will not be worn down in a part of its outer peripheral portion, and the wear resistance will be improved.

本考案の構造が樹脂製以外のものにも奏効することは言
うまでもなく、その他、ボールの採用個数等も本考案の
趣旨を逸脱しない範囲で種々変形が可能である。Needless to say, the structure of the present invention can be applied to other than resin, and the number of balls to be used can be variously modified without departing from the spirit of the present invention.

［考案の効果］ 本考案は、以上のような構造によって、樹脂等によって
つくる場合にも回転の安定性と耐久性を得ることがで
き、同時に加工・組立上の便宜が図られたベアリングを
提供できるものである。しかも、使用時において、リテ
ーナの全周に亘って連続する部分が真円で剛性を有する
外輪と内輪との少なくともいずれか一方と係合すること
により、突起のような部分的な係合ではありがちな係合
部分がかみこむ恐れがなく、安定してその係合状態を維
持することができる。この結果、部分的に係合している
場合に比べて、全周に分散されて摩擦力が生じるため、
摩耗がある特定の部位に集中することがなくなり耐摩耗
性を向上させることができる。[Effects of the Invention] The present invention provides a bearing having the above-described structure, which can provide stable rotation and durability even when made of resin, etc., and at the same time, which is convenient for processing and assembling. It is possible. Moreover, when in use, a portion that is continuous over the entire circumference of the retainer engages with at least one of the outer ring and the inner ring that are circular and have rigidity, which tends to result in partial engagement such as a protrusion. It is possible to maintain the engaged state in a stable manner without the risk of the engaging portion being bitten. As a result, as compared with the case where it is partially engaged, the frictional force is generated by being dispersed over the entire circumference,
It is possible to improve the wear resistance because the wear is not concentrated on a specific part.

【図面の簡単な説明】[Brief description of drawings]

第１図〜第６図は本考案の一実施例を示し、第１図はベ
アリングの正面図、第２図は第１図中II−II線に沿う断
面図、第３図は第２図中III−III線に沿う断面図、第４
図は外輪の縦断面図、第５図は内輪の縦断面図、第６図
はリテーナの縦断面図である。 １…外輪、２…内輪 ３…ボール、４…リテーナ ５…係合部、11…溝部（外輪） 12…転接点、21…溝部（内輪） 22…転接点、41…保持穴 42…開口部、4a…開口縁部外周 Ａ…ボール径1 to 6 show an embodiment of the present invention, FIG. 1 is a front view of a bearing, FIG. 2 is a sectional view taken along line II-II in FIG. 1, and FIG. 3 is FIG. Sectional view taken along the line III-III, 4th
FIG. 5 is a vertical sectional view of the outer ring, FIG. 5 is a vertical sectional view of the inner ring, and FIG. 6 is a vertical sectional view of the retainer. 1 ... Outer ring, 2 ... Inner ring 3 ... Ball, 4 ... Retainer 5 ... Engagement part, 11 ... Groove part (outer ring) 12 ... Rolling contact, 21 ... Groove part (inner ring) 22 ... Rolling contact, 41 ... Holding hole 42 ... Opening part , 4a ... Outer edge periphery A: Ball diameter

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】真円で剛性を有し、かつ溝部を有した外輪
及び内輪の間にリテーナを介して複数のボールを転動可
能に保持させてなるものにおいて、前記リテーナを弾性
変形可能に構成してその等角位置にボール径よりも幅広
な開口部を有した切欠状の保持穴を形成するとともに、
前記開口部に背向するリテーナの全周に亘って連続した
部分と前記外輪及び前記内輪の少なくともいずれか一方
との間に係合部を設定し、各開口部を通じて対応する保
持穴内にボールを案内しつつ前記外輪と内輪の間に軸方
向から弾性変形を利用して挿入したリテーナを配設位置
で弾性復元させることにより、該リテーナが前記係合部
により係止されて挿入側への抜出を禁止され得るように
したことを特徴とするベアリング。Claim: What is claimed is: 1. A retainer, wherein a plurality of balls are rollably held by a retainer between an outer ring and an inner ring having a perfect circular shape and having a groove portion, wherein the retainer is elastically deformable. In addition to forming a notch-shaped holding hole having an opening wider than the ball diameter at its equiangular position,
An engaging portion is set between a portion that is continuous over the entire circumference of the retainer facing the opening and at least one of the outer ring and the inner ring, and the ball is inserted into the corresponding holding hole through each opening. By elastically restoring the retainer, which is inserted between the outer ring and the inner ring from the axial direction using elastic deformation in the guide position, at the disposition position, the retainer is locked by the engaging portion and pulled out to the insertion side. A bearing characterized in that it can be prohibited from coming out.
JP1989058176U 1989-05-20 1989-05-20 bearing Expired - Lifetime JPH0740734Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989058176U JPH0740734Y2 (en) 1989-05-20 1989-05-20 bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989058176U JPH0740734Y2 (en) 1989-05-20 1989-05-20 bearing

Publications (2)

Publication Number Publication Date
JPH02150412U JPH02150412U (en) 1990-12-26
JPH0740734Y2 true JPH0740734Y2 (en) 1995-09-20

Family

ID=31583550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989058176U Expired - Lifetime JPH0740734Y2 (en) 1989-05-20 1989-05-20 bearing

Country Status (1)

Country Link
JP (1) JPH0740734Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105673702A (en) * 2016-04-20 2016-06-15 哈尔滨理工大学 Novel ball bearing with outer ring being V-shaped rolling track and inner ring being arc-shaped rolling track

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60107622U (en) * 1983-12-27 1985-07-22 日本精工株式会社 Rolling bearing with cage for harmonic drives
JPH0788856B2 (en) * 1986-10-07 1995-09-27 光洋精工株式会社 Ball bearing manufacturing method

Also Published As

Publication number Publication date
JPH02150412U (en) 1990-12-26

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